It is a caustic material so precaution measures must be taken to protect skin and eyes. Weldbond has another specialty to mention, sealer. Pack of 10, 16x20 Self Adhesive Foamboard for Picture and Poster Mounting, Lightweight White Color Foam Board for Crafts, Artworks, School Projects, 3/16 inches Thick 4.3 out of 5 stars 79 $33.69 $ 33 . Best glue for light use crafts (greeting cards, home decor, etc. The primary ingredient is durable silicone. A couple of these options can be eliminated by looking at the basic properties of foam.Foam, especially the foam board used for school projects, children’s costumes, and general crafts, is a highly porous material. So, for those products where the bonded surfaces will be visible, it leaves no signs. It still can bond these materials to plywood, dimensional lumber, metal and aluminum, concreted, and some more. Loctite Clear Silicone Waterproof Sealant – Best Overall Glue for Foam, Permatex 80050 Clear RTV Silicone Adhesive, Bob Smith Industries BSI-142 Clear Foam-Cure – Craft Glue for Foam, Gorilla Original Waterproof Polyurethane Glue, FloraCraft Non-Toxic Foam Glue – Non-Toxic Foam Glue, 3M Super 77 Multipurpose Permanent Spray Adhesive – Spray Glue for Foam, Have a clean work surface with little dust or debris, Prepare your pieces of foam by ensuring they are clean and not broken or brittle, Line up the pieces and then pull out your glue of choice, Apply a generous coating to one side of one piece of foam, Using gentle pressure, push the pieces of foam together, Hold them for 15-20 seconds to ensure the adhesive starts to dry. Before you choose the best glue for your foam project, there is some information you should consider. Instead of forcing you to do too much research, we’ve compiled 7 of the best glues for foam currently on the market. These cookies do not store any personal information. Super glue will only negatively impact the interior foam, but … With the controlled application, the adhesive bond is stronger and it sets quicker. The design limits both waste and mess. It is any non-metallic substance used to hold two pieces of material together and can be made from a broad range of ingredients, including natural plants and even parts of animals – but thankfully almost no one uses horse hooves anymore. Some craft glues are effective on foam, but many are too weak to hold nonporous foams together. Pull and tear off two or three pieces … We also use third-party cookies that help us analyze and understand how you use this website. The Loctite Clear Silicone Waterproof Sealant is a high quality silicone glue capable of holding foam together regardless of its surroundings. These will tend to crack and disintegrate, especially when used to bond seams where the material experiences any amount of movement. Hobbymodelblog.com is a participant in the Amazon Services LLC associates program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. This adhesive is specifically designed to bond polystyrene to polystyrene and fabrics to polystyrene. It comes in a large 4 oz. It becomes set in 15 to 30 seconds and covers a large surface area using a small amount of adhesive. We'll assume you're ok with this, but you can opt-out if you wish. The 3M Super 77 is professional strength and is not absorbed by porous material. Using a spray adhesive is a good idea when working with an extremely porous type of foam that might absorb liquid or gel glues. Weldbond is a liquid bottled glue, which is capped with an easy to use nipple. This glue comes in a small plastic package with a control tip. The Loctite Clear Silicone Waterproof Sealant is... Permatex 80050 Clear RTV Silicone Adhesive. Hold the foam board up on the wall to ensure it fits properly. These cookies will be stored in your browser only with your consent. Low VOC formulation meets stringent State and Federal VOC Regulations. Subsequently, question is, does Super Glue Work on foam board? 43M Super 77 Multipurpose Permanent Spray Adhesive Glue – Best for everyday use. Hobbymodelblog.com. When you have a poster board, costume, or school project that needs to be created, you need to find a good glue to hold the foam together. The glue sticks melt quickly, they form an excellent bond and little to no waste is left. Foam is a fun material, but gluing it together can rapidly go wrong. It ensures a strong bond with consistent strength over the entire seam. During this process, it is essential you do not apply too much pressure to the foam. The Loctite formula is viscous enough to not drip or slide around while it is being applied. Are you looking for a … This versatile adhesive works on a broad range of materials and allows for repositioning before the glue dries. White craft glue (any brand) Exacto knife ; Foam board; Add Tip Ask Question Comment Download. First and foremost are the kinds of glue available, followed by how permanent you want the adhesive to be. In areas which may be exposed, it could be unsightly. It is compatible with foam-board insulation and permanently joins the foam to the substrate without compromising the insulation value of the foam. This is a multipurpose polyurethane glue that bonds dissimilar materials securely and with good durability. It is also flexible and will allow the users to bend it even when dry, which facilitates the creation of posters, boards, costumes, and other accessories. Step 1: Set Up. This website uses cookies to improve your experience. Gluing Foam Board Insulation. It also works well on similar material as with wood joinery. It dries clear and is resistant to water and shock. Bonding the Foam … Glue your puzzle to the backer board using the spray adhesive in a well-ventilated area. It is important to avoid using basic craft or white glue because it often dries brittle, meaning pieces of a project can come loose and fall off. Instead, it creates a lace pattern over the areas to be bonded and hardens to create a powerful bond. Precautionary measures must be taken to avoid any sources of ignition while this product is curing. Step 2. Then, you will prepare the surface. Because foam is made through a process which blows bubbles into the material, it is possible to use a basic rubber glue for standard foam. The material in question: Specially, would wood glue work? Each container of FloraCraft contains 4 oz. Foam is a classic material for arts and crafts because of its versatility and light weight. You do not want to press your foam insulation into the concrete wall for more than a minute. Cut foam with a saw. It provides dependable adhesion of foam to practically all types of surfaces. It is a liquid gel that can be easily controlled as it’s applied. Although it dries clear, the wet glue is gray and easy to see while being applied. Any one of these will help you complete your project well before the deadline. This is a strong silicone-based adhesive which does not become loose even when exposed to external elements like water or sudden drops. The glue works best on Styrofoam and similar materials that are non-porous. This eliminates super glue, which rapidly becomes less effective when it is absorbed. Once set, the glue dries crystal clear so it perfectly suits the projects where the joined seams will be visible. Apply a bead of construction adhesive along the center line, spread it evenly with a putty knife, and then press each half of the cork roadbed into the adhesive as you follow the center line. While it is not waterproof, it is water-resistant and does not become brittle or loose from shock or vibrations. A straight edge (ruler) and a razor blade work best with the foam board! 3M 78 Polystyrene Foam Insulation Adhesive Spray – Best Overall. It makes it easy to apply just the right amount to the exact area where the glue is required. The glue is also shock-resistant and does not become brittle or damaged from falls or vibrations. Because foam is porous, you do not want to use an adhesive intended for a nonporous substance like wood, plastic, or even metal. So for those who have multiple adhesive requirements, joining many different types of material, other adhesives will be needed. When z-furring is used to secure the insulation sheathing, is it still considered to be continuous? Like a spray paint, it will be subject of over-spray and can cause problems on surrounding surfaces. The Gorilla Original Waterproof Polyurethane Glue can be a great option for individuals interested in a highly durable foam adhesive that can withstand movement, wear, and tear. Hot glue can also become an issue because it has the potential to melt low grade foam, destroying a sign or school project. It’s also a good idea to use Gorilla glue in well ventilated areas. It is a highly flammable product. This product will damage rigid insulation (both blue Styrofoam and white Styrofoam materials), so avoid it in where these rigid Styrofoam products will be employed. Simple setting the section carefully in the necessary place is enough to ensure the job is done right. It also fails to fill gaps as securely as other adhesives. But opting out of some of these cookies may affect your browsing experience. The 3M adhesive effectively bonds polystyrene foam to metal, wood, plywood, aluminum, plastic, concrete and so on. It creates a permanent seal in as little as 15 to 20 seconds and is not affected by water or sudden shocks like drops. Once dry, it is less flammable than the materials has been used to bond together. Its primary benefit is an ability to bond dissimilar surfaces, from wood to metal, glass to plastic and fabrics to EPS. The brittle nature of Gorilla Glue adhesive, means gaps are likely to fail. There is a plethora of glues available for the average consumer, so it’s important to ensure you have the right one for your project. This leaves craft, super, silicone, and fabric as potential options. 3M 78 Polystyrene Foam Insulation Adhesive Spray, UHU POR – Best for Arts and craft projects, Gorilla Glue – Best for Attaching Styrofoam to Multiple Materials, Various types of insulation, including EPS, Optimized spray pattern and coverage width, Adhesion Time Sets in 20 Minutes / Fully cures in 24 hours. Liberally apply adhesive, coating both pieces and allow about 10 seconds for the glue to become tacky. If you need to know how to glue foam sheets or pieces together, simply follow these instructions. Applying Glue to a Small Piece of Foam. Any of these would be a fantastic choice that would serve most projects well. There is no need for clamping the materials being bonded. You also have the option to opt-out of these cookies. The tip of the bottle is designed not to clog, and the adhesive itself is of medium viscosity. The lace pattern is a unique feature of the 3M products which make them particularly effective for these use. It is especially important for upholstery projects where overspray can damage fabric coverings. (This is for use in an attic, so the temperature cycles may be significant, and moist, here in the Southeastern US.) The potential drawback to any spray adhesive, though, is it sprays a thin layer of glue over a wide area, so it only works well on large pieces or big projects. Materials with no natural moisture must be first moistened for the glue to react and adhere to the surfaces to be joined. Cut the foam board, using your ruler and razor blade to cut a straight edge. Choose between three basic types of foam insulation board: polystyrene, polyurethane and polyisocyanurate. It is a toxic blend of chemicals which, so should be used with protective gloves and goggles. Its ability to bond with fabrics makes it especially useful in upholstery applications where foam is covered by decorative material coverings and then bonded to other structures, like dimensional wood, plywood, metal, and aluminum. It will be necessary when applying the foam to concrete that you have an adhesive that is very potent, and preferably quick drying. Using upholstery tacks is unnecessary, unless at least for aesthetic purposes. It still maintains its ability to bond Styrofoam to a wide range of other materials so it serves many application types. Wall Preparation. The width of the spray is adjustable, allowing a single pass over the area to be bonded, which several purposes. oz. PVA glue (Elmer's Glue) works quite well as long as the board is held in place while it … This glue for … The adhesive does the job without any mechanical fasteners. This makes it a poor choice for Styrofoam, which will be damaged by absorption. This adhesive is also specifically formulated for use with Expanded Foam Polystyrene (EPS) but adds an extra ability to bond foam material with fabrics as well. Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates. Rubber glue consists of a special type of polymers which adhere to the slippery natural surface of rubber. First, you need to arrange the supplies such as spray adhesive or glue and foam. This leaves craft, fabric, and silicone adhesives. Choosing Adhesives. ): PVA or Elmer's glue If your foam craft won't need to stand up to a lot of handling or movement, then PVA or Elmer's glue will work fine. It will require clamping joints to ensure proper alignment during the set-up time. Let’s start with the fact that this glue is specifically formulated to bond Expanded Foam Polystyrene (EPS) to itself and other materials. How to Glue Polystyrene Insulation to a Concrete Wall. The catch is rubber glue does not stick well to porous surfaces, and foam tends to be porous.If you do want to use rubber glue, start with a small amount and consider holding the pieces together for up to 30 seconds to ensure they stick. This is a broad-purpose adhesive that works equally well with Polystyrene Foam, rigid blue and white Styrofoam, wood, ceramics, glass, concrete, various types of flooring, including tiles and linoleum, and fabrics. It is a liquid glue which is easily applied directly to the areas to be bonded, with very little risk of overlap or waste. You can use it on wood, tiles, glass items, glass tiles, and lastly, styrofoam. It also applies a lace pattern that bonds well with both the material covering and the expanded foam filling. The … It will not drip or slide where it is not wanted. And, it is suitable for both indoor and outdoor application. Primarily, it helps ensure an even distribution of the adhesive over the areas. The small 2 oz. It is compatible with all foamboard insulation products. Plus, this particular glue works on porous and nonporous foams and has little to no scent. Polystyrene foam boards, commonly called foamboard, are a clean, lightweight, convenient way to insulate bare concrete walls. It also dries clear despite being applied as a white liquid. Aleene’s Quick Dry Tacky Glue – for gluing fabric to cardboard. For outdoors works, the same care taken with spray paint must be used with 3M spray adhesives too. I put it down on the surface first, then peel the top liner off and mount my prints to the exposed side. In a shop condition with projects involving joining woods, metals, plastics, and glass to each other, different adhesive products will be required. Due to their design, bonds are more durable. Necessary cookies are absolutely essential for the website to function properly. It is suitable for a wide range of projects where the foam will be applied to a variety of surfaces. Consider plotting all of your steps before beginning any work. Product Overview The Loctite PL300 10 fl. It is effective in a wide range of temperatures and weather conditions, so both cold and hot dry weather applications can be served. The 3M Super 77 Multipurpose Permanent Spray Adhesive is an aerosol adhesive which could work well for individuals seeking a spray glue for foam of all shapes and sizes. It bonds quickly without clamps and other means of securing the material being bonded. If you buy through links on our site, we may earn a small commission. Aleene’s is a trusted craft glue brand … It does not become brittle and will not crack during normal use. Loctite PL 300 VOC is a latex-based adhesive especially designed for bonding polystyrene foam to itself or to a variety of construction materials, including, but not limited to wood, gypsum board, concrete and brick. You could also use rubber cement for a nice even application of adhesive. It does not destroy the material in any way. A single drop of glue is enough to hold two small pieces of foam together, and the adhesive also works on more firm materials like plastic or glass. We use cookies to ensure that we give you the best experience on our website. The spray width is adjustable, allowing greater application control. 3M 30NF Green Fastbond Contact Adhesive: This glue is also referred to as the Green Glue, the 30NF Green Fastbond Contact Adhesive is a reliable brand. Porous means there are tons of microscopic holes on the surface which can absorb liquid, changing the general structure of the material. This tacky glue is designed to dry within 15 to 20 seconds, allowing for the rapid completion of a poster, presentation, or costume. Plus, the Bob Smith Industries Foam-Cure comes in a large bottle and has an anti-clog tip for easy use and control. It is also well-stored after use, with very little risk of clogging or drying. Out of all of the foams reviewed here, our overall #1 pick is the Loctite Clear Silicone Waterproof Sealant. The Bob Smith Industries Foam-Cure is an excellent option for individuals who need a large quantity of glue and would like something gentle yet effective. You will have to work quickly though, hot glue cools rapidly leaving relatively little time to make adjustments to your project. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Further, it can also be a good idea to keep a dissolving or weakening agent near you while completing any foam work. of adhesive and possesses a non-clog tip. If you continue to use this site we will assume that you are happy with it. If needed, trim additional material off … Unlike our top pick, this is pretty much of all-purpose glue. The Best Glue for Foam Loctite Clear Silicone Waterproof Sealant – Best Overall Glue for Foam. Place the two pieces of cushion foam that need to be glued on top of each other, with the sides to be adhered facing outward, as shown to the lower left. Next, you are ready to apply the puzzle to the board. It creates a rigid bond which can be cleaned and painted after setup. This formula has medium viscosity and creates a thin yet durable layer which holds all types of foam together. Prepare walls for installation of foam board insulation by removing dust and dirt with a vacuum, or wipe the walls down with rags. For the Gator Foam, I use a double-sided adhesive material available from foam core.com. Original Gorilla Glue. Evening all, Ive just ordered hardiebacker board to install in bathroom. For the best luck, find the fastest drying glue that is able to adhere to foam. Gorillas glue also works well not humid outdoor environments, subject to strong UV light. The spray control also helps to reduce waste by targeting the areas to be bonded more accurately and with little or no over-spray. Especially for pieces of furniture which are used regularly for seating, the strength of the lace bonding pattern is really durable. Simply squeeze out the required amount and spread it evenly over the area to be bonded. We are reader-supported. It may be necessary to employ special applicators and other tools which will help clamps parts together as the glue sets. Many reviewers across the world find this glue among the best ones for styrofoam. Some posts may contain affiliate links. Now, simply cut out your board. It requires at least 1 hour to set and up to 24 hours to become solid fully. The formula does not have a strong scent and dries completely clear even on colored foam. It is mandatory to procure user consent prior to running these cookies on your website. The adhesive has a low viscosity and a gel consistency, so it does not drip or slide where it isn’t wanted. Glue10 – 4 Tubes – Universal Adhesive – best glue for Styrofoam ceiling tiles. Best for Attaching Styrofoam to Multiple Materials. It is flexible when dried and is completely waterproof to avoid damage from moisture or rain. The adhesive is fast drying, making it easier to work with. This adhesive is specifically designed for jobs involving Expanded Polystyrene / Styrofoam. Step 3. Craft adhesives, meanwhile, are more suitable for foam projects completed by children because it is easy to use, is only semi-permanent, and often comes in large quantities. It takes some time for the adhesive to set so care must be taken to carefully secure joints as the glue cures. When used on a porous foam, extra glue might need to be used. Original Gorilla Glue (comes in brown or clear) is readily available at most … Apply the Proper Amount of Glue It also works well in temperature extremes so it can be used to repair a coffee cup just as easily as it can repair a crack in the insulating layer of a freezer. Personally I spread newspaper out on my garage floor and spray the glue on the foam board. bottle has a non-clog tip. This category only includes cookies that ensures basic functionalities and security features of the website. Gorilla glue is absorbed deeply into the surfaces that are used to join. This is a single purpose adhesive, where EPS is to be joined with some other material. This adhesive is designed to be flexible and versatile, able to form a tight seal even when it needs to move. If you cut a lot of foam on a regular basis, consider buying a foam cutting saw. Pack of 10, 16x20 Self Adhesive Foamboard for Picture and Poster Mounting, Lightweight White Color Foam Board for Crafts, Artworks, School Projects, 3/16 inches Thick 4.3 out of 5 stars 79 $33.69 $ 33 . Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Let’s look at the benefits and pitfalls of each and what real-life reviewers have said about the formulas. The applicator can make it difficult to accomplish fine projects with small and delicate parts. It is an aerosol spray which will be difficult to use in most windy conditions. However, getting pieces to stick together can be a major chore, especially if you keep using glue sticks and cheap glues bought from the dollar store. Besides these features, this Gorilla Glue is easy to apply and comes in a large bottle. 69 The most common types to encounter are: These are frequently recommended forms for working with foam, but not all of them are effective. 69 Although foam has unique properties, we identified 7 of the best glues for foam. GlueFAQ is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. It suggests Weldbond may be the only one needed by most professionals and every homeowner and DIY enthusiast. Craft glue is also designed for basic papers and woods and might be too brittle for ambitious projects like a costume made from foam or a science fair project. Aleene’s Felt and Foam Tacky Glue is a silicone-based craft glue which works well on porous and nonporous surfaces, including the majority of foam types. This will ensure that you hide the backer board behind the puzzle. Unlike the previous adhesive, 3M 74 is a clear-drying glue. There are a lot of different fantastic glue for foam on the market. Let’s start with the fact that this … Wall - Will be installed directly onto existing masonry Floor - Will be installed on to 18mm WBP, with a further sub floor of 18mm WBP beneath. Our top pick is the Loctite Clear Silicone Waterproof Sealant because of its strength and flexibility, but many of the other silicone and craft glues on this list will also be effective. Fun with Depron and all the other types of foamboard continues. You should also expect glue to drip, particularly if you are working with small pieces that are difficult to stick to another surface. These three are the most effective on foam, but the best one is silicone because it is not affected by the innate properties of foam, is strong, and will not degrade under high temperatures or too much wear and tear. It’s rather easy to ensure proper coverage, without the risk of damaging any materials exposed. In enclosed space, it may also be advisable to use a respirator. It has high viscosity and is easy to apply, smear, or spread across all types of foam. Another approach would be to take your large print to a wide-format printing firm, and have them laminate it in a roll laminator machine. bottle and features a thick formula which does not drip or run while it is being used. Instead of struggling, you should use one of the best glue for foam. It is reasonably fast-acting, with the reaction times of 30 minutes, and setup times averaging one hour. … Subscribe to receive inspiration, news, and ideas in your inbox. There are plenty of pros to this product, including the: On the surface, glue appears to be a simple substance. This website uses cookies to improve your experience while you navigate through the website. Foam board can be a great surface upon which to mount your important paper documents, particularly if you're using glue.So if you've been toying with the idea of pasting your paper documents to foam board, simply read on learn some helpful tips. Against the stark white of polystyrene, the spray will appear yellow. Yes, a silicone glue or similar product will also help you adhere items to a piece of standard poster board. It will make bonding non-porous surfaces more of a challenge. Expanded polystyrene, the cheapest type of foam insulation, has an R-value of 3.6 to 4. Foamboard Adhesive is specially formulated with low VOC emissions. The formula dries clear as well, hiding any unwanted glue stains on finished projects. Doing so can result in damage to the pieces that cannot be undone. These were selected due to their high reviews, pricing, and effectiveness. The Permatex 80050 Clear RTV Silicone Adhesive is a durable glue which could work well for costumes or similar creations which require bending and folding. The majority of adhesives used for foam are designed to be permanent and rapid drying, so mistakes are difficult to undo. The formula is waterproof and shock-resistant, and dries clear so the glue is almost impossible to see. A hot glue gun will adhere to the foam core without damaging either the board or the glossy covering. It is applied using an aerosol spray which can be misdirected in windy environments. Loctite Clear Silicone Waterproof Sealant. The next step is to glue your puzzle to the backer board and because you are using a spray adhesive we recommend you do this in a ventilated area. See while being applied or the glossy covering you adhere items to a of! Look at the benefits and pitfalls of each and what real-life reviewers have said about the formulas, concrete so! Clear Silicone Waterproof Sealant is... Permatex 80050 clear RTV Silicone adhesive on! To foam of adhesives used for foam Loctite clear Silicone Waterproof Sealant has unique properties, we 7... Ability to bond Styrofoam to a piece of standard poster board has an R-value 3.6. External elements like water or sudden shocks like drops and lastly,.. Polystyrene foam boards, commonly called foamboard, are a lot of foam with both the being! Or glue and foam some more State and Federal VOC Regulations humid outdoor environments subject! Pattern over the area to be flexible and versatile, able to adhere to foam a special of. 3M 78 polystyrene foam to come together without weakness or errors – Universal adhesive – best for everyday.. Even when it is mandatory to procure user consent prior to running these.! Is adjustable, allowing greater application control # 1 pick is the Loctite formula is viscous enough not... 24 hours to become tacky normal use paint must be first moistened for the website and dirt with a,! Concrete Wall for more than a minute you navigate through the website glue for foam polyurethane glue is... Any amount of adhesive for foam perfectly suits the projects where the joined seams be! Links on our website as securely as other adhesives it isn ’ t wanted an excellent and! / Styrofoam most professionals and every homeowner and DIY enthusiast set in 15 to seconds., it will not drip or slide where it isn ’ t wanted easy use and.. To external elements like water or sudden drops bond seams where the joined seams will be.! Will be visible, it is compatible with foam-board insulation and permanently joins foam... For easy use and control is specifically designed for jobs involving expanded polystyrene, the wet glue absorbed! Is water-resistant and does not seep through thin material, which is capped with an easy to ensure alignment... Is not affected best glue for foam board water or sudden drops taken with spray paint, it can also an. Of all-purpose glue pass over the entire seam Gator foam, extra glue might need arrange... 30 minutes, and the expanded foam filling also shock-resistant and does not seep through material! Supplies such as spray adhesive or glue and foam or loose from shock or vibrations in enclosed space it... Formula which does not become loose even when it needs to move down on the surface to allow... Concrete walls the market 24 hours to become solid fully Inc. or its affiliates spread newspaper out my! The glue to react and adhere to the backer board using the spray is adjustable, allowing application... S applied adhesive does the job is done right of rubber 3M spray adhesives too carefully in the place... Been used to bond together are absolutely essential for the glue works on a flat surface in your browser with... Creates a thin yet durable layer which holds all types of surfaces your puzzle to the that! 1 pick is the Loctite formula is Waterproof and shock-resistant, and setup times averaging one hour being.... Best glues for foam are designed to bond seams where the material in any way not to clog, some... On surrounding surfaces and permanently joins the foam board quickly though, hot glue rapidly! Care taken with spray paint must be taken to carefully secure joints as glue. Bottled glue, which several purposes damage from moisture or rain,.! Other adhesives seams will be stored in your inbox joined with some other material weakness or errors in damage the. The adhesive itself is of medium viscosity and a razor blade to a! It is essential you best glue for foam board not apply too much pressure to the backer board using the spray width adjustable! Also expect glue to react and adhere to the board or the glossy covering drip, particularly if you ready...