Best adhesive for foam board - Buyers guide

Best adhesive for foam board to concrete

In the world of reparations, there is a great variety of projects and tasks that need to be done, for which an adhesive that binds any type of object is very useful.

Depending on the need we have, our choice will be for one type of product or another, since we currently have available on the market a huge range of these glues, whose features vary a lot.

It is essential to choose well the qualities we need or, otherwise, we could have problems during our works or even months after the ending of the projects.

Best adhesive for foam

In this review we offer you 5 of the best adhesives we have found, and whose features you can compare to find the one that best suits your needs.

Do not struggle anymore thinking that the tiles of your roof will fall down two days after you have repaired them!

Loctite PL Premium Polyurethane Construction Adhesive

Loctite PL Premium Polyurethane Construction Adhesive 10-Ounce Cartridge

  • Polyurethane based, moisture-curing adhesive
  • 3x as strong as ordinary construction adhesive, Interior or Exterior use, Waterproof, Paintable, Cures in Cold Temperatures
Weldbond 8-50420 Multi-Purpose Adhesive Glue

Weldbond 8-50420 Multi-Purpose Adhesive Glue

  • Elegant design and Smooth finish
  • Concrete blended with Weldbond withstands heavy wear and vibration. Mix 1 part Weldbond with 10 parts water, and use as the water portion of your premixed concrete.
3M Hi-Strength 90 Spray Adhesive

3M Hi-Strength 90 Spray Adhesive

  • HIGH STRENGTH, FAST TACKING spray adhesive that bonds foam, wood, concrete
  • RESISTANCE to moisture and high temperatures
  • Spray adhesive formula is easy to dispense while holding spray can upside down
Gorilla Max Strength Clear Construction Adhesive

Gorilla Max Strength Clear Construction Adhesive

  • Repositionable, Gap Filling, Paintable, Easy to Dispense
  • 2X Stronger than Gorilla Heavy Duty Construction Adhesive Ultimate
  • Waterproof and Mold & Mildew Resistant
Gorilla Clear Glue

Gorilla Clear Glue

  • Repositionable, Gap Filling, Paintable, Easy to Dispense
  • 2X Stronger than Gorilla Heavy Duty Construction Adhesive Ultimate
  • Waterproof and Mold & Mildew Resistant

Loctite PL Premium Polyurethane Construction Adhesive — Your all-terrain tool

If you want to guarantee that the blocks of the Egyptian pyramids, the stones of Everest or the columns of Atlantis are going to stay stuck together till the end of time, you need a product that is reliable in all weather and temperature conditions.

Strength under any condition

This adhesive from the well-known brand Loctite will be your best ally whether it’s sunny, rainy, thundery and even when the water in the yard fountain is freezing. It provides nice adhesion to most common construction materials regardless of environmental conditions, coupled with excellent moisture and water resistance.

The Problems

Classical brand, classical reliability but classical practical application of the product: you will need a caulk gun to use it correctly, so it is not as easy and comfortable to use as systems being used by other products of the same type. 

It takes 2 to 3 days to cure completely and after this time you will notice that it has expanded slightly, so you should calculate the amount well if you don’t want aesthetic problems especially.


  • Very strong product
  • Works under all conditions, waterproof
  • Useful for interiors and exteriors with low odor


  • Takes a couple of days to cure
  • Caulk gun needed
  • Exposure to polyurethane could be hazardous

Weldbond 8-50420 Multi-Purpose Adhesive Glue — Just the right balance for your needs

Weldbond 8-50420 Multi-Purpose Adhesive Glue

Have you ever have problems managing to figure out how much adhesive glue you need?. When you buy a pack, there’s usually a lot left over or missing, and in the best-case scenario, you’ll have half a bottle of adhesive in the garage waiting to freeze and become unusable. Weldobnd fixes this problem with its product offering.

Environmental-friendly product for any purpose.

Weldbond is a universal adhesive for gluing a variety of materials, available in numerous sizes for various applications and project needs. You can choose from a wide range of product versions to ensure that you have enough to go around. Weldbond is water-based, free of phthalates, and not tested in animals, so it does not release any fumes or damage the environment.

The problems

Sometimes the benefits can also be a disadvantage: As Weldbond is water-based, it is not water-proof: it should only be used on external applications if it is free of standing water that could cause it to freeze, so its use is especially limited to indoor spaces. However, if the product is starting to solidify, it can be restored by adding just a little bit of water.


  • Size variants for any purpose
  • Vegan-friendly
  • Water-based reduces the risk of exposure to toxicity
  • Works well with Plastics and expanded polystyrene


  • Some types of plastic, rubber and cast metals will not produce a bond
  • Not water-proof
  • It can’t be used in containers designed for hot liquid

3M Hi-Strength 90 Spray Adhesive — Extra-fast, extra-comfortable.

3M Hi-Strength 90 Spray Adhesive

A very versatile, fast-drying spray adhesive that allows it to bond to the vast majority of materials you may require, including paper, cardboard, fabric, and insulation. If you need fast and reliable results with high quality, this multipurpose spray might fit perfectly for your projects.

Industrial strength for everyday applications

From crafting to construction, works well for any indoor or outdoor project. In many cases, what we need is a product that we can apply quickly and as conveniently as possible: that is the definition of this 3M contact-type adhesive, we can consider it as a unique “spray glue”. This formula allows it to be dispensed even while holding the spray can upside down!

The problems

This product offers an efficient solution, but at a high cost: it is the most expensive adhesive on our list, without being the strongest of them all. Although it falls under the 3M “Waterproof” category, this specification is not embedded in the product description.


  • Fast drying, contact-type spray
  • Adjustable nozzle to choose the width
  • High temperature and moisture resistance
  • High initial grab, sufficient bonding range


  • High price
  • Less powerful than other products
  • Not explicitly specified to be waterproof

Gorilla Max Strength Clear Construction Adhesive — For the toughest jobs on planet Earth.

Gorilla Max Strength Clear Construction Adhesive

It combines strength and versatility for any project purpose with a crystal clear, easy to use, non-foaming formula. A product that serves perfectly for bond glass, ceramic, stone, tile, metal, and more! 

The brand’s strongest construction adhesive formula

Gorilla is a brand known for the strength and resistance of its products. Once again, it surprises us by managing to double the power of this new adhesive, which is also waterproof and whose effectiveness lasts for a long time under any environment. It is an extremely versatile product that is very easy to use.

The problems

Although it is a paintable adhesive, it is not sandable. In addition, despite being specified as a transparent dry color, some customers claim that, after being cured, it remains slightly yellowish.


  • Waterproof
  • Dries crystal clear
  • Repositionable, Paintable, Gap Filling, Non-Foaming and Easy to Dispense
  • Can be applied to wet surfaces


  • Doesn’t bound well two non-porous surfaces
  • Significantly more expensive than other Gorilla products
  • Not sandable

Gorilla Clear Glue — Simple solutions for simple problems.

Gorilla Clear Glue

On many occasions we do not need a product capable of sealing the tectonic plates: every day some unexpected events happen at home that we have to fix, and Gorilla Clear Glue brings us a simple but effective and easy-to-use product.

The little brother of the brand

Although Gorilla offers high-strength adhesives for the most complicated tasks, Clear Glue is a less powerful but equally versatile adhesive, designed for small repairs of any kind. We are offered a crystal clear and non-foaming formula, ideal for indoor and outdoor applications. 

The problems

Being a product for small scale reparations, we found some problems that are not typical in high power adhesives: they do not recommend being used in unusual temperatures, as well as in polyethylene or polypropylene plastic. It is water resistant, and can withstand intermittent exposures, however, is not meant for a constant soak.


  • Low-cost
  • Easy to use
  • Versatile for bound metal, plastic and glass
  • Crystal clear and non-foaming
  • Water resistant


  • Cannot be used in unfavourable conditions
  • Not water-proof
  • More than 1 day to be completely cured
  • For non-porous surfaces only

Mike Walker

Repair and Construction Expert. Owner