Gorilla Heavy Duty Expanding Foam is a multi-purpose, fast-curing expanding foam that fills, seals...Gorilla Heavy Duty Expanding Foam is a multi-purpose, fast-curing expanding foam that fills, seals, and insulates. It's great for a variety of applications, with a straw that allows expansion into gaps and cracks without excessive overflow for a neater finish. This foam is perfect for sealing out air, moisture, and even pests. It is suitable for use in attics, ducts, doors, windows, skylights, crawlspaces, floors, masonry, plumbing, vents, ceilings, walls, and more. It bonds to various materials including PVC, Brick, Concrete, Insulation Materials, Plaster, Plastic, Wood, and Metal. Key features include its ability to seal gaps and cracks up to 2.5cm, creating a lasting, heavy-duty seal that effectively keeps out air, moisture, and pests for a reliable solution. The foam offers no shrinkage and a maximum expansion.
Gorilla Heavy Duty Expanding Foam 353ml Straw Filler Sealant Insulation Gap FillFree delivery in 1–3 days£13.17Visit shop →
Gorilla Heavy Duty Expanding Foam 353ml - Multi-Purpose, Durable 1 Pack, GreyFree delivery in 1–3 days£18.09Visit shop →
2 x Gorilla Heavy Duty Expanding Foam 353ml Crack Gap Filler Sealant InsulationFree delivery in 1–3 days£21.22Visit shop →
3 x Gorilla Heavy Duty Expanding Foam 353ml Crack Gap Filler Sealant InsulationFree delivery in 1–3 days£29.28Visit shop →
Product Information
Full details
This guide provides comprehensive information on using Gorilla Heavy Duty Expanding Foam, designed for homeowners and contractors seeking a reliable sealant. It excels at filling, sealing, and insulating gaps and cracks, offering a durable solution for various applications. Keep in mind that proper application and surface preparation are essential for optimal results.
All features
Colour
Grey
Model Part Number
114972
Brand
Gorilla
Extended Product Information
FAQs
How long does it take for the foam to cure?
The foam cures quickly, typically within an hour for the surface and fully cures within a few hours, depending on the environment.
Can I paint over the cured foam?
Yes, you can paint over the cured foam. Allow the foam to fully cure before painting.
How do I clean up uncured foam?
Uncured foam can be cleaned up with a foam cleaner or acetone. Be sure to follow safety precautions when using these solvents.
What is the shelf life of the foam?
The shelf life is typically 12-18 months when stored properly in a cool, dry place.
Can I use this foam outdoors?
Yes, but be sure to protect it from direct sunlight and the elements by painting or covering it after it has fully cured.
What safety precautions should I take when using this product?
Wear gloves and eye protection. Work in a well-ventilated area. Avoid contact with skin and eyes. Keep out of reach of children.
Troubleshooting
Foam does not expand properly.
Ensure the can is shaken well before use. Check the expiration date. Make sure the ambient temperature is within the recommended range.
Foam overflows excessively.
Apply the foam sparingly. Use a straw applicator to control the flow. Trim excess foam after curing.
Foam does not adhere to the surface.
Clean and prepare the surface correctly before application. Lightly moisten the surface before applying the foam. Ensure the surface is free of dust, oil, and loose particles.
Cured foam is soft or sticky.
Ensure the foam is fully cured before touching it. Check that the application temperature is within the recommended range.
Pros and Cons
Pros
Versatile application across many surfaces and environments.
Provides a strong, lasting seal against air, moisture, and pests.
Quick and easy to apply with a straw applicator.
Expands to fill irregular gaps and cracks effectively.
Durable and long-lasting seal.
No shrinkage after curing.
Cons
Requires proper surface preparation for optimal adhesion.
Can be messy if not applied carefully.
Excess expansion can occur if not applied correctly.
Not suitable for all types of materials or applications.
Once cured, it can be difficult to remove.
Setup, Compatibility & Care
Surface Preparation: Ensure the surface is clean, dry, and free of dust, oil, and loose particles. For best results, slightly moisten the surface before application.
Application: Attach the straw applicator to the can. Shake well before use. Apply the foam into the gap or crack, allowing it to expand.
Curing: The foam cures quickly, but the full cure time may vary depending on environmental conditions. Avoid contact with the foam until it is fully cured.
Compatibility: The foam adheres well to most common building materials, including wood, concrete, metal, and PVC. Always test in an inconspicuous area if unsure about compatibility.
Care: Once cured, the foam can be trimmed, sanded, or painted. Use a utility knife to trim excess foam. Protect the foam from direct sunlight to prevent degradation.
Storage: Store the can upright in a cool, dry place. Avoid extreme temperatures.