gluefaq.com
Home » The Top 7 Best Glue for Foam

The Top 7 Best Glue for Foam

Foam is a classic material for arts and crafts because of its versatility and light weight. 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. Instead of struggling, you should use one of the best glue for foam. Instead of forcing you to do too much research, we’ve compiled 7 of the best glues for foam currently on the market. Any one of these will help you complete your project well before the deadline.

Our Overall #1 Rated Pick

Loctite Clear Silicone Waterproof Sealant

Loctite Clear Silicone Waterproof Sealant

Out of all of the foams reviewed here, our overall #1 pick is the Loctite Clear Silicone Waterproof Sealant. This is a strong silicone-based adhesive which does not become loose even when exposed to external elements like water or sudden drops. 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.
Plus, this particular glue works on porous and nonporous foams and has little to no scent. It does not become brittle and will not crack during normal use.
There are plenty of pros to this product, including the:

  • Easy to control gel
  • Low viscosity
  • Rapid drying
  • Flexibility

There are also some potential cons like:

  • The bottle itself
  • The strength of the glue

Check Latest Price

Glue for Foam – Buying Guide

On the surface, glue appears to be a simple substance. 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. Before you choose the best glue for your foam project, there is some information you should consider. First and foremost are the kinds of glue available, followed by how permanent you want the adhesive to be.

Types of Glue

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. The most common types to encounter are:

  • Craft
  • Wood
  • Super (cyanoacrylate adhesives)
  • Hot
  • Fabric
  • Silicone

These are frequently recommended forms for working with foam, but not all of them are effective. In particular, wood glue is specially designed to adhere primarily to the natural fibers present in boards, and it thus makes a poor adhesive for craft projects. Hot glue can also become an issue because it has the potential to melt low grade foam, destroying a sign or school project.

This leaves craft, super, silicone, and fabric as potential options. 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. Porous means there are tons of microscopic holes on the surface which can absorb liquid, changing the general structure of the material.

Because foam is porous, you do not want to use an adhesive intended for a nonporous substance like wood, plastic, or even metal. This eliminates super glue, which rapidly becomes less effective when it is absorbed.

This leaves craft, fabric, and silicone adhesives. 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. 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.

How to Glue Foam Together

Foam is a fun material, but gluing it together can rapidly go wrong. If you need to know how to glue foam sheets or pieces together, simply follow these instructions.

  1. Have a clean work surface with little dust or debris
  2. Prepare your pieces of foam by ensuring they are clean and not broken or brittle
  3. Line up the pieces and then pull out your glue of choice
  4. Apply a generous coating to one side of one piece of foam
  5. Using gentle pressure, push the pieces of foam together
  6. Hold them for 15-20 seconds to ensure the adhesive starts to dry

During this process, it is essential you do not apply too much pressure to the foam. Doing so can result in damage to the pieces that cannot be undone. You should also expect glue to drip, particularly if you are working with small pieces that are difficult to stick to another surface.

Further, it can also be a good idea to keep a dissolving or weakening agent near you while completing any foam work. The majority of adhesives used for foam are designed to be permanent and rapid drying, so mistakes are difficult to undo. Consider plotting all of your steps before beginning any work.

The Best Glue for Foam

There are a lot of different fantastic glue for foam on the market. These were selected due to their high reviews, pricing, and effectiveness. Any of these would be a fantastic choice that would serve most projects well. Let’s look at the benefits and pitfalls of each and what real-life reviewers have said about the formulas.

The top best product [hide]

Loctite Clear Silicone Waterproof Sealant – Best Overall Glue for Foam


Loctite Clear Silicone Waterproof Sealant – Best Overall Glue for Foam
The Loctite Clear Silicone Waterproof Sealant is a high quality silicone glue capable of holding foam together regardless of its surroundings. It creates a permanent seal in as little as 15 to 20 seconds and is not affected by water or sudden shocks like drops. The Loctite formula is viscous enough to not drip or slide around while it is being applied. The small 2 oz. bottle has a non-clog tip. 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. This could be a beneficial option for individuals who want to combine multiple substances to create a unique project.
Technical Specifications:
  • Waterproof
  • Shock-resistant
  • Dries clear
Pros
Easy to control
Anti-clog bottle
Does not crack or peel
Gel formula
Cons
The tube is weak
Permanent
Can bleed through thin foam

buy on Amazon

Permatex 80050 Clear RTV Silicone Adhesive


Permatex 80050 Clear RTV Silicone Adhesive
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. This adhesive is designed to be flexible and versatile, able to form a tight seal even when it needs to move. The formula is waterproof and shock-resistant, and dries clear so the glue is almost impossible to see. This glue comes in a small plastic package with a control tip. The adhesive has a low viscosity and a gel consistency, so it does not drip or slide where it isn’t wanted.
Technical Specifications:
  • Can be bent
  • Waterproof
  • Dries clear
Pros
Flexible
Control tip
Low viscosity
Versatile
Suitable for multiple types of foam
Cons
Strong smell
Thick formula
Sometimes the bottle jams

buy on Amazon

Bob Smith Industries BSI-142 Clear Foam-Cure – Craft Glue for Foam


Bob Smith Industries BSI-142 Clear Foam-Cure – Craft Glue for Foam
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. This formula has medium viscosity and creates a thin yet durable layer which holds all types of foam together. While it is not waterproof, it is water-resistant and does not become brittle or loose from shock or vibrations. Plus, the Bob Smith Industries Foam-Cure comes in a large bottle and has an anti-clog tip for easy use and control. The formula does not have a strong scent and dries completely clear even on colored foam. It will not drip or slide where it is not wanted.
Technical Specifications:
  • Dries clear
  • Compatible with all foam types
  • Large bottle
Pros
Anti-clog tip
Does not drip
Medium viscosity
Slightly tacky when dry
Cons
Weaker than silicone glue
Needs to dry overnight

buy on Amazon

Aleene's Felt and Foam Tacky Glue


Aleene's Felt and Foam Tacky Glue
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. It comes in a large 4 oz. bottle and features a thick formula which does not drip or run while it is being used. The formula dries clear as well, hiding any unwanted glue stains on finished projects. This tacky glue is designed to dry within 15 to 20 seconds, allowing for the rapid completion of a poster, presentation, or costume. It has a mild scent and does not seep through thin material, which means it might work well for slim pieces of foam.
Technical Specifications:
  • Effective on felt and foam
  • Thick formula
  • Easy to control
Pros
Large bottle
Anti-clog tip
Low viscosity
Rapid drying
Cons
Can become tacky
Works better on felt

buy on Amazon

Gorilla Original Waterproof Polyurethane Glue


Gorilla Original Waterproof Polyurethane Glue
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. It is flexible when dried and is completely waterproof to avoid damage from moisture or rain. The glue is also shock-resistant and does not become brittle or damaged from falls or vibrations. Besides these features, this Gorilla Glue is easy to apply and comes in a large bottle. Although it dries clear, the wet glue is gray and easy to see while being applied. The tip of the bottle is designed not to clog, and the adhesive itself is of medium viscosity.
Technical Specifications:
  • Waterproof
  • Durable
  • Flexible
Pros
Medium viscosity
Suitable for all foam types
Shock-resistant
Flexible
Cons
Can drip or slide
Permanent
Easily absorbed

buy on Amazon

FloraCraft Non-Toxic Foam Glue – Non-Toxic Foam Glue


FloraCraft Non-Toxic Foam Glue – Non-Toxic Foam Glue
The FloraCraft Non-Toxic Foam Glue might be a good choice for family products or children because it utilizes a non-toxic, water-based formula that is simple and easy to apply. It has high viscosity and is easy to apply, smear, or spread across all types of foam. It also dries clear despite being applied as a white liquid. Each container of FloraCraft contains 4 oz. of adhesive and possesses a non-clog tip. The glue works best on Styrofoam and similar materials that are non-porous. When used on a porous foam, extra glue might need to be used.
Technical Specifications:
  • Non-toxic
  • Water-based
  • High viscosity
Pros
Easy to apply
No scent
No-clog bottle
Great for nonporous foams
Cons
Dries brittle
Not flexible
[/mks_tab_item]

buy on Amazon

3M Super 77 Multipurpose Permanent Spray Adhesive – Spray Glue for Foam


3M Super 77 Multipurpose Permanent Spray Adhesive – Spray Glue for Foam
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. This versatile adhesive works on a broad range of materials and allows for repositioning before the glue dries. It becomes set in 15 to 30 seconds and covers a large surface area using a small amount of adhesive. The 3M Super 77 is professional strength and is not absorbed by porous material. Instead, it sits on the surface to better allow foam to come together without weakness or errors. It dries clear and is resistant to water and shock. The primary ingredient is durable silicone.
Technical Specifications:
  • Aerosol adhesive
  • Great for lightweight materials
  • Rapid bonding
Pros
Dries clear
Is not absorbed
Water-resistant
Shock-resistant
Cons
Sprays over a wide area
Strong smell
Permanent

buy on Amazon

FAQ

Does glue for foam work on poster board?

Yes, a silicone glue or similar product will also help you adhere items to a piece of standard poster board. 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.

Does rubber glue work on foam?

Rubber glue consists of a special type of polymers which adhere to the slippery natural surface of rubber. 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 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.

Are spray adhesives effective on foam?

Using a spray adhesive is a good idea when working with an extremely porous type of foam that might absorb liquid or gel glues. 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.

Does craft glue work on foam?

Some craft glues are effective on foam, but many are too weak to hold nonporous foams together. 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.

Conclusion

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. Although foam has unique properties, we identified 7 of the best glues for foam. 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.

Add comment