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£14.49 Original price was: £14.49.£8.18Current price is: £8.18.
Gorilla Heavy Duty Expanding Foam (340ml) quickly seals gaps, cracks, and holes with a durable, airtight, and waterproof barrier. Ideal for insulation, filling, and weatherproofing indoor and outdoor spaces.

Gorilla Heavy Duty Expanding Foam 340ml – Fast-Curing, Multi-Purpose Sealant for Gaps & Cracks
£14.49 Original price was: £14.49.£8.18Current price is: £8.18.
Brand
Description
Gorilla Heavy Duty Expanding Foam (340ml) is a fast-curing, multi-purpose sealant designed to fill and seal gaps, cracks, and holes with a strong, airtight, and waterproof bond. Perfect for both indoor and outdoor use, this foam provides superior insulation and long-lasting protection against drafts, moisture, and pests.
Product Overview
This heavy-duty expanding foam is ideal for sealing around windows, doors, pipes, and other openings. Its quick-expanding formula ensures maximum coverage while preventing energy loss. Once cured, it can be trimmed, sanded, and painted for a clean, professional finish.
Key Features
- Fast-Curing Formula: Expands and cures quickly to create a strong, lasting seal.
- Multi-Purpose Use: Ideal for insulation, weatherproofing, and filling cracks or voids.
- Waterproof & Airtight: Blocks moisture and air for improved energy efficiency.
- Indoor & Outdoor Safe: Suitable for use in a variety of environments and conditions.
- Paintable & Sandable: Once cured, can be trimmed, sanded, and painted for a neat finish.
- Prevents Drafts & Pests: Seals openings to stop cold air, bugs, and rodents entering.
Specifications
- Size: 340ml
- Colour: Off-white (dries firm)
- Use: Indoor and outdoor
- Finish: Paintable and sandable after curing
- Application: Foam dispenser nozzle included
Ideal For
- Sealing gaps around windows and doors
- Insulating pipes and ductwork
- Filling cracks in walls, floors, or ceilings
- Weatherproofing sheds, garages, and outbuildings
- Preventing drafts, moisture, and pests
Why Choose Gorilla?
Gorilla is a trusted brand known for its powerful adhesives and repair products. The Heavy Duty Expanding Foam delivers unmatched strength and versatility, ensuring your home or workspace stays sealed, protected, and energy efficient.
Shipping & Return
We hope that you are delighted with every purchase you make from Home Supplies Direct. However, if you are not entirely satisfied, our experienced team is here to help. Below are the details on how we can assist you:
Amending or Cancelling an Order
If you'd like to amend or cancel a recently placed order, please contact our Customer Service Team at 0208 998 0118.
- Amendments can be made up until the point of despatch.
- Once the order has been despatched, we cannot amend or cancel it.
Damaged or Incorrect Items
Please check your parcel when it arrives. If you’ve received damaged goods or missing items, we will help you resolve the issue quickly.
- Contact us within 30 days (or 7 days for shortfalls) of receiving the goods.
- The quickest way to reach us is by calling our Product Returns Team at 0208 998 0118.
- Alternatively, you can email us at sales@homesuppliesdirect.com.
- We will replace missing or damaged products at no extra charge.
Returning Unwanted Items
If the item you ordered turns out to be unsuitable, we are happy to offer a refund on unused products returned in original, resalable condition.
- You have 30 days from receipt to notify us.
- We will issue a full refund once the item is returned to our warehouse.
- Please note: Postage charges are non-refundable for returned unwanted items.
If you need further assistance, feel free to reach out to our team. We are committed to making your shopping experience as smooth as possible.
Specs
| DIMENSIONS | |
|---|---|
| Weight | 0.55kg |
Product Safety



Danger
- Extremely flammable aerosol.
- Pressurised container: May burst if heated.
- Causes skin irritation.
- May cause an allergic skin reaction.
- Causes serious eye irritation.
- May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- May cause respiratory irritation.
- Suspected of causing cancer.
- May cause harm to breast-fed children.
- May cause damage to organs through prolonged or repeated exposure.
- May cause long lasting harmful effects to aquatic life.
- Contains isocyanates. May produce an allergic reaction.




















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