---
product_id: 2538568
title: "3M 78 Polystyrene Foam Insulation Spray Adhesive, Translucent 17.9 Oz. Aerosol Can"
brand: "3m"
price: "€ 63.78"
currency: EUR
in_stock: true
reviews_count: 8
category: "3 M"
url: https://www.desertcart.ie/products/2538568-3m-78-polystyrene-foam-insulation-spray-adhesive-translucent-17-9
store_origin: IE
region: Ireland
---

# Lace spray for even coverage 15 min reposition window Foam-safe, no degradation 3M 78 Polystyrene Foam Insulation Spray Adhesive, Translucent 17.9 Oz. Aerosol Can

**Brand:** 3m
**Price:** € 63.78
**Availability:** ✅ In Stock

## Summary

> 🛠️ Bond like a pro, stick with 3M 78 – the industrial adhesive that won’t let you down!

## Quick Answers

- **What is this?** 3M 78 Polystyrene Foam Insulation Spray Adhesive, Translucent 17.9 Oz. Aerosol Can by 3m
- **How much does it cost?** € 63.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/2538568-3m-78-polystyrene-foam-insulation-spray-adhesive-translucent-17-9)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Extended Working Time:** Up to 15 minutes to adjust and reposition for flawless alignment—no rush, no mess.
- • **Foam-Friendly Formula:** Specially formulated to prevent dissolving or degrading polystyrene, preserving insulation integrity.
- • **Optimized Spray Pattern:** Unique lace spray delivers uniform coverage, minimizing waste and ensuring consistent adhesion.
- • **Precision Bonding Power:** Industrial-strength adhesive engineered to bond EPS foam stronger than the material itself.
- • **Versatile Industrial Use:** Bonds polystyrene to plastics, metals, wood, and more—perfect for professional insulation and composite projects.

## Overview

3M 78 Polystyrene Foam Insulation Spray Adhesive is a high-viscosity, industrial-grade aerosol adhesive designed for professional use. It features a lace spray pattern optimized for bonding expanded polystyrene foam (EPS) and other insulation materials without degrading them. With up to 15 minutes of open time for repositioning and a strong, durable bond across multiple substrates, it’s the go-to solution for demanding insulation and foam assembly applications.

## Description

3M Insulation & Polystyrene 78 Spray Adhesive is a high-strength, industrial-grade spray adhesive designed with a lace spray pattern for optimal coverage. With up to 15 minutes of working time, it is effective for bonding most types of insulation, such as fiberglass and expanded polystyrene foam (EPS), onto numerous kinds of materials, including plastics, metals, wood, paper, and more. When used according to 3M instructions, 3M Insulation & Polystyrene 78 Spray Adhesive avoids dissolving and degrading polystyrene foam, making it an excellent choice for tasks such as foundation insulation, polystyrene block assembly, and attaching foam to wood and other substrates. For additional application ease, use this spray with the 3M Cylinder Spray Adhesive System. Contains 1,1-Difluoroethane Safe and Easy Insulation Attachment with an Extended Open Time 3M™ Polystyrene Insulation Adhesive 78 Aerosol is designed to be a high-solids, high-coverage formula designed for bonding many types of insulation. A lace spray pattern optimized for foam bonding helps bond expanded polystyrene foams (EPS) to themselves and other surfaces, including concrete. This spray is engineered so it won't dissolve or degrade foam when used according to 3M instructions. With a bonding range of one to 60 minutes, it provides extended open time to let you position parts. Recommended Applications Foundation insulation Polystyrene block assembly Attaching foam to wood and other substrates Proven excellent for roofing and landscaping Styrofoam cores for composites Your Polystyrene Adhesive 3M™ Polystyrene Insulation Adhesive 78 is capable of bonding polystyrene foam onto a wide array of materials, including paper, cardboard, plastic, metal, wood and much more. This spray adhesive has been proven to work well for projects both large and small. Cylinder Spray Delivery 3M™ Polystyrene Insulation Adhesive 78 can be used with our 3M Cylinder Spray Adhesive system. Each cylinder is self-contained, pressurized and ready for immediate use. Available in a variety of sizes, they’re portable and require minimal equipment investment and maintenance. Our cylinders help increase your productivity with fast application and no time-consuming equipment setup. The applicator and hose connect quickly and allow you to start spraying immediately. The wide, uniform spray is the optimal pattern to deliver effective and economic use of the adhesive. It also minimizes any pooling for even drying. 3M has a complete line of innovative sprayable adhesives that support a wide range of industrial applications, from aerospace to woodworking.

Review: Expensive but it works - Use: I do a lot of Halloween decorations using pink foam board (xps extrusion). In theory, one could use clear Gor—-a glue to stick pieces together, but I’ve never been able to get that to work. Pros: this stuff WORKS. Spray both flat side of each object, wait for it to get more tacky, then press flat sides together. The consistency is a more like rubber cement than superglue, but wear gloves!!! Really! Dry time varies. You’ll have at least 10-15 seconds to re-adjust, but once it sets, it’s all over. However, if you just have the spray on one piece, and don’t put anything to glue on it (like a board that extends past another) it takes awhile to dry. I would recommend spraying both surfaces. The nozzle has three “settings) and is a nice feature. The hole can get gummed up, but it’s easily peeled off by hand. If you’re going to paint, paint first, because it shows under spray paint, texture-wise, if you accidentally get it on paint areas. Cons: the price! Wow! I put off buying this because it’s so expensive, in my opinion. However, the can is huge. Far bigger than a can of spray paint. I haven’t finished the can yet, and I’ve sprayed about 60 square feet, double-sided. And quite frankly, it’s a time saver and it works. But if you were spraying two 4’ x 8’ foam boards fully, not just the borders…yikes. Full disclosure: I have no idea how this works regarding insulating a house. It’s not spray insulation, it’s glue, but again, I don’t know how it stands up if you’re insulating with foam boards.
Review: Strong bond! Works well for pink insulation board. - I needed to bond layers of that "Pink Panther" extruded polystyrene (XPS) insulation foam board for a craft project. There are few good adhesives to use on this. Many solvent-based glues will dissolve it. Polystyrene is very non-polar (it loves organic solvents but repels water) which also makes water-based glues problematic for bonding sheets together. As a side note, you can effectively use water-based glues on the expanded polystyrene (EPS) type of foam, commonly called Styrofoam. EPS is the white white foam used for packaging, insulation, little foam airplanes, Styrofoam coolers, etc. Water-based glues can work on EPS because EPS is so porous that the water molecules can diffuse through it even though the polystyrene repels it. Not so with the pink XPS foamboard. If you try to bond two layers of XPS with wood glue, you'll find it never cures because the water molecules cannot diffuse through it in any reasonable amount of time. So 3M 78 to the rescue. 3M says this product is for the EPS type of foam, so I wasn't sure of its performance on XPS foam. I followed the directions, letting the adhesive dry on both surfaces for 3-5 minutes where it didn't look wet anymore, and then I put the two foam boards together. They bonded instantly (you only get one chance so get it right!) and then I put some weight on them and let them sit for a few hours. Like water-based glues, this spray adhesive cures by evaporation. However, the solvent molecules are not repelled by the polystyrene so they are able to diffuse out. I give it plenty of time to be sure. It worked well for me, no problems. Do use plenty of ventilation when using this product (take it seriously).

## Features

- FOR INDUSTRIAL USE ONLY: This product is designed exclusively for industrial applications
- SPECIALIZED USAGE: Made specifically for bonding expanding polystyrene foams (EPS), creating bonds stronger than the foam itself
- APPLIES EVENLY FOR GOOD COVERAGE: Sprays in a lace pattern optimized for insulation bonding
- ADJUST AND REPOSITION: Offers up to 15 minutes of working time
- PREVENTS MATERIAL DETERIORATION: Doesn't dissolve or degrade polystyrene
- MADE FOR PROFESSIONALS: Provides industrial-strength bonding for demanding applications
- Contains 1,1-Difluoroethane
- For industrial/occupational use only. Not for consumer sale or use.Not for sale in California.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001EUOAGK |
| Best Sellers Rank | #15,686 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Aerosol Adhesives |
| Brand | 3M |
| Color | Translucent |
| Date First Available | September 9, 2006 |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00021200415937 |
| Is Discontinued By Manufacturer | No |
| Item Form | Foam,Spray |
| Item Package Quantity | 1 |
| Item Volume | 24 Fluid Ounces |
| Item Weight | 1.15 pounds |
| Item model number | 78 |
| Manufacturer | 3M |
| Material | Foam |
| Package Information | Aerosol Can |
| Product Dimensions | 12 x 9 x 11 inches |
| UPC | 021200415937 |
| Unit Count | 508 Grams |
| Viscosity | High Viscosity |
| Viscosity Level | High |
| Water Resistance Level | Not Water Resistant |

## Product Details

- **Brand:** 3M
- **Color:** Translucent
- **Item Form:** Foam,Spray
- **Item Package Quantity:** 1
- **Material:** Foam

## Images

![3M 78 Polystyrene Foam Insulation Spray Adhesive, Translucent 17.9 Oz. Aerosol Can - Image 1](https://m.media-amazon.com/images/I/71fGk8DvDXL.jpg)
![3M 78 Polystyrene Foam Insulation Spray Adhesive, Translucent 17.9 Oz. Aerosol Can - Image 2](https://m.media-amazon.com/images/I/61MupRYI1cL.jpg)
![3M 78 Polystyrene Foam Insulation Spray Adhesive, Translucent 17.9 Oz. Aerosol Can - Image 3](https://m.media-amazon.com/images/I/81dWtdps1tL.jpg)
![3M 78 Polystyrene Foam Insulation Spray Adhesive, Translucent 17.9 Oz. Aerosol Can - Image 4](https://m.media-amazon.com/images/I/81P88JbEafL.jpg)
![3M 78 Polystyrene Foam Insulation Spray Adhesive, Translucent 17.9 Oz. Aerosol Can - Image 5](https://m.media-amazon.com/images/I/71v4SPndgJL.jpg)

## Questions & Answers

**Q: I'm looking to adhere fabric to styrofoam and upholstery foam. Will this work? I used 3m 77 and it melted the foam then failed**
A: I know it will work on Styrofoam but I have not tried it on upholstery foam. It will not melt Styrofoam and I have been using it on all sorts of Styrofoam panels.

**Q: What is the amount of coverage area for one 17.9 oz can?**
A: On the can it says 100 square feet.  There are two methods of using it.  On just one surface, or on both surfaces for the best bond.  If you do the recommended both surface method you would have to cut the area in half, so 50 sq/ft

**Q: Will this bond Owens Corning Foamular pink board rigid insulation to metal frame? Will not melt it?**
A: I used the adhesive to bond owens corning pink polystyrene board to a corrugated steel deck. I applied the adhesive to both the board and the steel deck and then mated the two surfaces. In my case, the steel deck was the ceiling, so I supported the PS board against the steel deck with two wood T's to give the adhesive to come up to strength. worked fine.

**Q: can I use this to seal the area between a wall air conditioner and the sleeve it sits in?**
A: No do not use this.  This is an adhesive, won't seal gaps. Better using foam panels or something called "GREAT STUFF" which is a gap filler and also insulates.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Expensive but it works
*by P***4 on December 5, 2025*

Use: I do a lot of Halloween decorations using pink foam board (xps extrusion). In theory, one could use clear Gor—-a glue to stick pieces together, but I’ve never been able to get that to work. Pros: this stuff WORKS. Spray both flat side of each object, wait for it to get more tacky, then press flat sides together. The consistency is a more like rubber cement than superglue, but wear gloves!!! Really! Dry time varies. You’ll have at least 10-15 seconds to re-adjust, but once it sets, it’s all over. However, if you just have the spray on one piece, and don’t put anything to glue on it (like a board that extends past another) it takes awhile to dry. I would recommend spraying both surfaces. The nozzle has three “settings) and is a nice feature. The hole can get gummed up, but it’s easily peeled off by hand. If you’re going to paint, paint first, because it shows under spray paint, texture-wise, if you accidentally get it on paint areas. Cons: the price! Wow! I put off buying this because it’s so expensive, in my opinion. However, the can is huge. Far bigger than a can of spray paint. I haven’t finished the can yet, and I’ve sprayed about 60 square feet, double-sided. And quite frankly, it’s a time saver and it works. But if you were spraying two 4’ x 8’ foam boards fully, not just the borders…yikes. Full disclosure: I have no idea how this works regarding insulating a house. It’s not spray insulation, it’s glue, but again, I don’t know how it stands up if you’re insulating with foam boards.

### ⭐⭐⭐⭐⭐ Strong bond! Works well for pink insulation board.
*by J***. on February 8, 2025*

I needed to bond layers of that "Pink Panther" extruded polystyrene (XPS) insulation foam board for a craft project. There are few good adhesives to use on this. Many solvent-based glues will dissolve it. Polystyrene is very non-polar (it loves organic solvents but repels water) which also makes water-based glues problematic for bonding sheets together. As a side note, you can effectively use water-based glues on the expanded polystyrene (EPS) type of foam, commonly called Styrofoam. EPS is the white white foam used for packaging, insulation, little foam airplanes, Styrofoam coolers, etc. Water-based glues can work on EPS because EPS is so porous that the water molecules can diffuse through it even though the polystyrene repels it. Not so with the pink XPS foamboard. If you try to bond two layers of XPS with wood glue, you'll find it never cures because the water molecules cannot diffuse through it in any reasonable amount of time. So 3M 78 to the rescue. 3M says this product is for the EPS type of foam, so I wasn't sure of its performance on XPS foam. I followed the directions, letting the adhesive dry on both surfaces for 3-5 minutes where it didn't look wet anymore, and then I put the two foam boards together. They bonded instantly (you only get one chance so get it right!) and then I put some weight on them and let them sit for a few hours. Like water-based glues, this spray adhesive cures by evaporation. However, the solvent molecules are not repelled by the polystyrene so they are able to diffuse out. I give it plenty of time to be sure. It worked well for me, no problems. Do use plenty of ventilation when using this product (take it seriously).

### ⭐⭐⭐⭐⭐ Perfect for Foamboard Insulation
*by K***J on September 30, 2022*

This will work for Pink Foam-board NGX and similar polystyrene insulation. I've tested it to wood, steel, aluminum and like foam. All bonded very well. I've tugged -hard- on it and it does not come apart. I'm sure I could get it apart if I worked at it with a pry bar or putty knife. But this bonded very well. I let it get a little tacky. Only waited a couple of minutes. In an hour it was pretty firm. 6 hours later it seemed mostly cured. The next day it was rock solid. It does -NOT- eat polystyrene like 3M #90 (Green can) does. Do if you want a spray adhesive (from a can) for foam insulation, this is it. It is a bit expensive. So if you are doing a large area, you may want to find something in a gallon can than can be used with something like a paint sprayer. But for smaller jobs, this size product is fine.

## Frequently Bought Together

- 3M 78 Polystyrene Foam Insulation Spray Adhesive, Translucent 17.9 Oz. Aerosol Can
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-24*