

(12 pack) Würth Expanding Foam Sealant for Big Gaps up to 3 inches, 12oz Can, Insulating Spray Foam
Key item features
- Versatile Sealing: Effectively fills gaps and cracks up to 3 inches, suitable for insulation, installation, sound and thermal insulation, sealing, and filling structural voids and various cracks.
- Protective Barrier: Creates an airtight, water-resistant, and weatherproof seal, effectively blocking out air, moisture, and pests while reducing drafts.
- Durable Performance: Offers strong adhesion, excellent thermal and acoustic insulation, and vibration resistance, ensuring a long-lasting and dust-proof seal.
- Efficient Application: Self-expanding and works well in low temperatures, becoming tack-free in 10 minutes and ready for cutting, polishing, or painting after 60 minutes.
- Convenient Design: Provided in a 12-ounce spray can, it features a quick, 3-step application process for user-friendly and convenient use.
Specs
- Industrial sealant typeExpanding Foam Sealant
- Adhesive formSpray
- Dry time60 min
- Net content statement12 oz (340 g)
- Rec. useFill Gaps
- Rec locationIndoor and Outdoor
Reviews summary
- : Offers good value at this cost.
- : Fills holes effectively with a strong bond.
- : Made with excellent craftsmanship.
- : Fills gaps and small openings.
- : Can be precise, but also prone to messiness.
- Free shipping
Free 90-day returns
How do you want your item?
This item includes:
- 12-pack of Würth Expanding Foam Sealant for Big Gaps up to 3 inches, 12oz Can, Insulating Spray Foam
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About this item
Product details
- Spray effectively fills gaps and cracks up to 3-inch in size
- Suitable for insulation and installation, sound insulation, thermal insulation, sealing, filling structural voids, engineering holes and various cracks, etc.
- Airtight and water-resistant seal
- Weatherproof and reduces drafts
- Seals out air, moisture, and pests
- Energy efficient and works in low temperatures
- Strong adhesion
- Excellent thermal and acoustic insulation with vibration resistance
- Self-expanding void filling ability that is moisture-proof and dust-proof
- Tack free in 10 minutes and can be cut, polished and/or painted after 60 minutes
- 12 ounce spray can
Specifications
Industrial sealant type
Adhesive form
Dry time
Net content statement
Warranty
Warranty information
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Customer ratings & reviews
Reviews summary
- : Offers good value at this cost.
- : Fills holes effectively with a strong bond.
- : Made with excellent craftsmanship.
- : Fills gaps and small openings.
- : Can be precise, but also prone to messiness.
Customer images





+1 image
Showing 1-3 of 296 reviews
Verified Purchase
I thought I was moving the can quickly but it still expanded a LOT. I trimmed the outside to look nice and acceptable, but I'm not going to trim the inside that I will ONLY see. Very easy to use, no smell, dried overnight cuz I didn't go back to check it sooner. Would buy again.
Verified Purchase
Very easy to work with it's a very great product better than Home Depot and loads. The cost is a lot better and did great project with it quick and easy to use. The instructions are larger print on the scan that was so helpful. And back of the can was very easy to read. The print was so much better compared to the other. Can I recommend us five stars or more thank you.
Verified Purchase
Würth expanding sealant
Purchased this to seal a large plastic bucket that will cover a now exposed outside (and recently repaired) water line and shut-off valve. This will also act mainly as insulation for the water line. I've used 5-6 cans so far but am pleased with the results. Was pretty easy to use.
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