How and what to glue Styrofoam: TOP 7 best remedies

Insulation is essential for maintaining a warm and comfortable environment in our homes. Because of its superior insulating qualities and lightweight nature, Styrofoam is a commonly used material for home insulation. But in order to ensure that the Styrofoam stays in place and effectively insulates your home, proper installation calls for the right adhesive. To assist you in selecting the best adhesive for your insulation needs, we’ll examine the top seven adhesives for attaching Styrofoam in this post.

Selecting the appropriate adhesive for Styrofoam is crucial for guaranteeing a strong, long-lasting bond. It can be difficult to choose the best option for your needs when there are so many on the market. Knowing the features of each adhesive will help you make the best decision, whether you’re working on a small do-it-yourself project or insulating an entire house.

Before exploring the best adhesives, it’s important to comprehend the characteristics of Styrofoam. Because of its superior heat resistance, Styrofoam is a lightweight, rigid foam material that is frequently used in insulation. Adhesion issues may arise, though, due to its smooth surface. The ideal adhesive should stick to a variety of surfaces that are frequently encountered in construction in addition to adhering well to Styrofoam.

Compatibility with the material is an important consideration when choosing an adhesive for Styrofoam. Since some chemicals can dissolve or break down the foam, not all adhesives are meant to be used with Styrofoam. To ensure the insulation’s long-term durability, the adhesive should also be able to tolerate temperature changes without losing its bonding strength.

In addition to compatibility, ease of application is an important factor to take into account, particularly for do-it-yourself enthusiasts. It should be possible to apply the adhesive easily and without the need for specialized tools or equipment if it is user-friendly. The process of installing insulation can be greatly accelerated by a simple application procedure, regardless of the size of the Styrofoam panels or walls to be covered.

Furthermore, in today’s eco-conscious world, taking environmental factors into account is becoming more and more important. Choosing environmentally friendly adhesives with low volatile organic compounds (VOCs) not only supports sustainability but also guarantees a healthier indoor environment for you and your family. Selecting adhesives with low odor emissions and no toxicity is an environmentally conscious decision that will benefit your house as well as the environment.

We’ll examine each of the top seven Styrofoam adhesives in the sections that follow, emphasizing their salient characteristics, advantages, and suggested uses. For all of your Styrofoam insulation needs, these adhesives provide dependable solutions, regardless of your level of experience as a contractor or as a do-it-yourselfer.

Characteristics of the material and indications for gluing

With the assistance of professional recommendations and the specialized market’s offerings, selecting the best option for successfully adhering foam plastic to foam is simple. Foamed plastic, also known as Styrofoam, is created using a variety of construction polymers, including polystyrene, polyurethane, polyvinyl chloride, and polyethylene. The material has remarkable heat resistance characteristics and a low specific density. These characteristics result from 98% of the total volume’s air mass being provided by the cellular structure.

Foamed polymers play an important role in the production of packaging products, insulators, and finishing resources. Additionally, foam plastic can be used as a building material thanks to modern technologies. It is used to mold decorative elements for the outside and interior, make structural panels, and package furniture, appliances, and food items.

The technology of gluing elements is primarily used to install foam plastic products. This makes it possible to construct a monolithic structure that excludes surface integrity flaws.

When joining foam pieces together with glue, any risks of gaps, cold bridges, or other hidden issues are eliminated. This is not the case with mechanical methods of joining.

TOP 7 effective foam bonding agents

Parts based on expanded polymers are mounted using a variety of adhesives. The following product categories are the best options for foam bonding that work well.

Special adhesives designed for foam plastic

A branded adhesive made of polyurethane that is specifically made for foam plastic is thought to be the best option. Materials in the composition offer a clean, sturdy connection, and can be installed remarkably quickly. They can also prevent polystyrene foam from deforming structurally. The consumption is between 200 and 350 g/m² on average. Calculations are done and 15-20% of the total volume is added as a reserve before special glue is purchased. It is advised to use a fine-grained abrasive material on the surfaces that need to be bonded for cost-effectiveness.

When deciding which type of glue to use for internal and external construction and finishing tasks, specialty glue compositions are typically selected. The products exhibit remarkable resilience against temperature variations and peaks, as well as moisture resistance and mechanical effect resistance.

Foam plastic special adhesive is sold in polyethylene tubes that include a mounting tube. The model underneath the construction gun is recommended for ease of use. The adhesive mixture is applied in the form of wavy, dotted, or thin strips to the cloth’s surface. After that, the panels are joined and firmly pressed together for 20 to 30 seconds to improve adhesion.

Dry glue mixes

It’s important to keep in mind that not all dry mixes are positioned as an effective means for adhesion of foamed polymers when choosing a glue to sandwich the foam between one another. If necessary, it is simple to identify the best ways to install the product in a high-quality manner on a designated plane in addition to joining polystyrene foam panels together.

As instructed by the manufacturer, the working solution is ready for use right away. The dry material is mixed with water in the prescribed amounts, then the mixture is stirred with a construction mixer or a drill attachment from a home to achieve a uniform consistency. Using a trowel, the ready adhesive material is applied, and a structural comb is used to level it. High levels of tightness and strength characterize the connection based on a dry mixture, which offers resistance to atmospheric loads.

Polyurethane spray

Considering how to adhere foam pieces together when working with limited space, you can utilize aerosolized polyurethane glue that comes in cans. The compound sets quickly and is simple to apply. In order to ensure a dependable fixation, the cloths are tightly pressed against each other, sprayed evenly on the bonded planes, and left for 30 minutes.

Polyurethane foam

The items allude to specific tools for handling polymer foam goods. The voids between two surfaces can be reliably filled with glue foam, which then fixes the surfaces together to form a monolithic structure.

Because of its remarkable level of adhesion, high tightness, ease of application, and quick setting time, polyurethane foam is positioned as a popular installation method. With a gun, foam concentrate is sprayed. The bonding process occurs in 7–10 seconds after the glue is applied continuously along the cloth’s perimeter. The work is done at air temperature plus.

Mounting foam

Assembly foam is a good material for joints and can also be used to join planes, so using it yields good results. But in order to get the greatest outcomes, you must be aware of the following details:

  • pre-moisten the surface of the foam;
  • Spray the foam onto the fabrics to be bonded in a continuous strip;
  • Join the planes and immediately separate them;
  • Apply a small amount of foam to the contact surface, join the elements and hold under load.

Construction foam polymerizes in three to five minutes, but it takes up to forty minutes for the foam plastic to be firmly fixed.


PVA glue is a low-cost option for joining polymer foams and is perfect for interior design. PVA compounds are not intended for use in facade construction. Both surfaces that need to be joined at once are brushed with the adhesive mass, which is then allowed to dry fully.

Liquid nails

The material, which has remarkable speed-setting properties, comes in mounting tube-equipped tubes; for best results, use a construction gun. The surface to be treated is covered in dots of liquid nails, which are then used to press the products firmly together for four seconds. Liquid nails are used to make glue, which has a long working life and great strength.

Styrofoam is a popular choice for home insulation because of its affordability and effectiveness. Proper Styrofoam glue application is necessary for an effective insulation project. This post will discuss the top 7 techniques for adhering Styrofoam, giving you useful advice to guarantee a strong and durable connection. We’ll cover everything you need to know to take on your insulation project with confidence, from specialty adhesives to do-it-yourself substitutes. When it comes to insulating your home’s walls, ceilings, or floors, following these tips will help you get the best results and improve its energy efficiency.

Nuances of proper bonding and reinforcement of polystyrene

When adhering products composed of both conventional and extruded polystyrene foam, it is important to consider the following technological subtleties:

  • polystyrene is treated with a needle roller for better adhesion;
  • It is recommended to cover the foam with long-fiber paper.

It is worthwhile to apply the following advice if there is a problem figuring out how to strengthen the construction made of foamed polymers after it has been adhered to:

  • In the case of interior decor or crafts from foam, the solution is to create an external reinforcing frame of paper;
  • If it is necessary to reinforce structural elements, it is advisable to use fiberglass.

It is also possible to "armore" foam using acrylic or gypsum plaster.

Adhesive Name Features
Loctite PL 300 Foamboard A popular choice, specifically designed for bonding Styrofoam to various surfaces. It dries clear and provides a strong, durable hold.
Gorilla Construction Adhesive Known for its versatility and strength, it"s suitable for bonding Styrofoam to a wide range of materials. It"s also weatherproof and can be used indoors or outdoors.
3M Super 77 Multipurpose Adhesive An all-purpose adhesive that bonds quickly and securely. It"s ideal for lightweight materials like Styrofoam and works well on uneven surfaces.
Great Stuff Foam Insulating Sealant This expanding foam adhesive not only bonds Styrofoam but also provides insulation against heat and cold. It"s perfect for filling gaps and cracks.
EPSILON Pro A professional-grade adhesive designed specifically for bonding Styrofoam. It dries quickly and forms a strong, permanent bond.
Super 77 Multipurpose Spray Adhesive Another option from 3M, this spray adhesive is easy to apply and provides a strong bond. It"s suitable for both temporary and permanent applications.
Liquid Nails Fuze*It All Surface Construction Adhesive This adhesive is formulated to bond to almost any surface, including Styrofoam. It"s waterproof and provides a durable, flexible hold.

The efficacy and lifespan of the Styrofoam insulation in your house can be greatly impacted by the adhesive you choose. With so many options, it’s important to take into account things like compatibility with Styrofoam, drying time, and application method. You can choose an adhesive remedy that best suits your needs by reading through the top seven options.

Construction adhesive is one of the most widely used methods for joining Styrofoam pieces. Construction adhesive offers a dependable means of attaching Styrofoam insulation to a variety of surfaces, such as wood, drywall, and concrete, thanks to its potent bonding properties and adaptability. Numerous professionals and homeowners alike favor it because of its speedy drying time and ease of application.

Water-based adhesive provides an eco-friendly substitute without sacrificing functionality for individuals looking for a more environmentally friendly option. Because they contain fewer volatile organic compounds (VOCs), water-based adhesives are safer to use indoors and have a lower environmental impact. These adhesives minimize the health risks associated with traditional solvent-based products while still providing excellent adhesion.

Polystyrene adhesive is the best option if you’re searching for a strong adhesive made especially for Styrofoam. Polystyrene adhesive, which is made specifically to adhere to Styrofoam surfaces, offers a strong, long-lasting bond that is resistant to changes in temperature and moisture exposure. It is appropriate for demanding insulation applications because of its unique formula, which guarantees optimal adhesion.

Foam board adhesive is an additional choice to take into account. It is made especially for joining foam insulation boards together. The adhesive provides outstanding tensile strength and pliability, guaranteeing a stable connection between foam boards and diverse substrates. For optimal energy efficiency in your home, foam board adhesive offers a dependable solution for insulating walls, ceilings, and floors.

Aerosol adhesive provides a hassle-free application process with minimal mess for projects requiring a quick and practical bonding solution. Because of its spray-on formula’s ability to apply precisely, it offers strong adhesion and even coverage. Aerosol adhesive works especially well for smaller-scale insulation projects or in hard-to-reach places for conventional adhesive applications.

The superior water resistance and weatherproofing properties of moisture-cure polyurethane adhesive make it ideal for outdoor applications or areas that are frequently exposed to moisture. This adhesive is appropriate for insulating external walls, roofs, and foundations because it creates a strong bond that is flexible even in the most extreme temperatures. Its resilience to challenging environmental circumstances guarantees its long-term insulating effectiveness and durability.

The ideal glue for attaching Styrofoam will ultimately rely on your unique needs, preferences, and the type of insulation you’re doing. You can select the adhesive that will provide the best performance and longevity for the insulation needs of your home by taking into account variables like bonding strength, application technique, and environmental considerations.

Video on the topic

Styrofoam will be glued together FOREVER! / How to glue pieces of Styrofoam or polystyrene foam?

What is better to glue epps (foam plastic)?

Super glue with your own hands in a few minutes literally from nothing

How to glue foam plastic, styrofoam, foamlex . How to apply glue. Best Adhesive for Foam

What type of heating you would like to have in your home?
Share to friends
Sergey Ivanov

I like to help people create comfort and comfort in their homes. I share my experience and knowledge in articles so that you can make the right choice of a heating and insulation system for your home.

Rate author
Add a comment