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Styrofoam is a soft, lightweight material known for its thermal and acoustical properties, and for product packaging. Styrofoam is also used in crafts and other projects. Whether you’re participating in a school project or simply crafting your own, your item will be sturdier (or as stiff as possible for Styrofoam) if you know how to glue Styrofoam to other surfaces (including other Styrofoam pads). See Step 1 below to get started!
Steps
Styrofoam glue classification table
Although basic craft glue can glue Styrofoam foam, many other specialty glues will create a stronger bond. Refer to the table below for the glues used to glue Styrofoam to different surfaces used in craft projects. [1] X Research Source
Paper | Fabric | Wood | Metal | Glass | Styrofoam |
---|---|---|---|---|---|
All-Purpose Glue (eg, Weldbond), Spray Glue (eg, 37 MM), Hot Glue | Multi-Purpose Glue, Spray Glue, Hot Glue | ppyurethane glue (eg, Gorilla Glue), Hot Glue, Contact Glue | Metallic epoxy glue, Epoxy stuffing glue, Hot glue | Epoxy Glue, All-Purpose Glue, Spray Glue | Multi-Purpose Glue, Spray Glue, Contact Glue |
Choose the right glue
- Milk glue (the kind used by students), such as Elmer’s, is safe, non-toxic and environmentally friendly. However, it is quite liquid and easy to stain.
- Clear glue like Eileen’s is thicker and less sticky.
- Note that milk glue is cheap and unstable, not as strong or durable as expensive specialty glues, so it should not be used on projects where Styrofoam is subject to pressure (like Styrofoam Styrofoam slides). , etc.).
- Since it is in liquid form, milk glue is best suited for gluing large blocks of Styrofoam together.
- If you are going to buy Styrofoam glue, you should check the label before you buy. Some Styrofoam adhesives are made specifically for Styrofoam, while others can be used to bond Styrofoam to other materials.
- Consider testing the glue on an inconspicuous spot first. If the glue bottle doesn’t say it’s safe to use on Styrofoam, you should check first. Some products in aerosol cans, such as spray paint, can melt or dissolve Styrofoam.
- Since spray glue is usually a slow-drying glue, it is best used for gluing large blocks of Styrofoam together. You should not use spray glue to glue two Styrofoam balls.
- Because of its high accuracy, the glue gun is suitable for gluing together small objects made of Styrofoam. The glue gun is also suitable for gluing Styrofoam balls.
- Although the smoke produced by the Styrofoam burning can’t hurt you right away, it shouldn’t be taken lightly because the smoke contains many harmful chemicals. Those chemicals include styrene and benzene, which are suspected carcinogens. [3] X Research Sources
- For example, vulcanized rubber glue, a fairly strong and flexible glue, often contains both alcohol and acetone. Acetone, the active ingredient in nail polish remover, can dissolve many resins so it won’t work for Styrofoam. However, some acetone-free vulcanized rubber sealants may be suitable for Styrofoam.
How to use glue
- If you are going to glue Styrofoam to a surface with “many crevices” (such as a piece of wood with many surface defects), the actual adhesive force of the glue may be reduced. [4] X Research Source In this case, sanding is recommended to make the surface smoother and flatter – try 200 grit or higher.
- If the Styrofoam sheet to be glued is very large, you should pour glue into a tray and use a brush to apply the glue. This will help you apply the glue quickly and evenly, preventing the glue from drying out while you are scanning.
- If the item to be glued is small, consider using a glue stick or a hot glue gun.
- If you use a hot glue gun, you must act quickly. The glue will dry in just a few minutes.
- Consider using a toothpick to reinforce the balls with Styrofoam. If you want to stick two Styrofoam balls together, you should stick a toothpick in them. The toothpick will help “hold” the two marbles together. Round objects always have a smaller surface area than flat objects.
- For stronger adhesion, you should apply a little more glue around the edge of the foam sheet where it comes in contact with the other surface. Do not apply more glue than necessary to create a thin layer, as this will only prolong the drying time.
- Hot glue will dry faster in colder weather.
- Some glues take a long time to dry, especially when the weather is very cold or wet.
Advice
- If the Styrofoam pad comes loose from the previously glued surface, you should throw it away and start over. When you apply a new layer of glue to the old glue that has dried, the bond that the glue creates will not be as strong as with the new foam board. Therefore, the adhesive force between the Styrofoam pad and the surface to be glued will be very weak.
- If the glue takes longer to dry than expected when you glued the two pieces of Styrofoam together, you can insert a toothpick into the two objects to keep them in place. Turning on the hair dryer and setting it to cool can also shorten the drying time.
Warning
- Never use a hot glue gun when applying Styrofoam. Styrofoam is made of plastic, hot glue gun can melt it and ruin your project. You should only use a hot glue gun to glue two objects that are not affected by heat.
Things you need
- Styrofoam Styrofoam
- Styrofoam Glue
- Paint brush
- Tray
- Toothpick
wikiHow is a “wiki” site, which means that many of the articles here are written by multiple authors. To create this article, 13 people, some of whom are anonymous, have edited and improved the article over time.
There are 7 references cited in this article that you can view at the bottom of the page.
This article has been viewed 3,937 times.
Styrofoam is a soft, lightweight material known for its thermal and acoustical properties, and for product packaging. Styrofoam is also used in crafts and other projects. Whether you’re participating in a school project or simply crafting your own, your item will be sturdier (or as stiff as possible for Styrofoam) if you know how to glue Styrofoam to other surfaces (including other Styrofoam pads). See Step 1 below to get started!
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