can it be used to fill cracks in old wood floors?

It expands quite a bit I would recommend the small gap stuff it doesn't expand

If I have some erosion under my walkway will this be an acceptable fill?

Likely not. The foam will certainly fill the gaps, but even once it sets, it's still pretty soft. It wouldn't provide any support. It might prevent further erosion, though

Is this product closed cell foam?

Hello, this product is considered open cell. However, our open cell count is far less than any competitive product you will find on the market. So once it's cured, it forms an air and watertight seal. Thanks!

Hi, no it is not, if you need our fire proof foam, I have posted the link for you below. Thanks! https://www.amazon.com/Red-Devil-0915-Sealant-Characteristic/dp/B00GY59RHC/ref=sr_1_2?keywords=red+devil+0915&qid=1564318468&s=gateway&sr=8-2

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Red Devil 090806 Spray Foam, Fill Large Gaps & Cracks, Expanding Insulation, Polyurethane Foam Sealant, 8 oz, Off White

Red Devil 090806 Spray Foam, Fill Large Gaps & Cracks, Expanding Insulation, Polyurethane Foam Sealant, 8 oz, Off White

Product ID: 102179018

Details

Brand
Red Devil
Item Weight
8 Ounces
Item dimensions L x W x H
2.5 x 2.5 x
Material
Blend
Style
Pack of 1

🎨Sandable, paintable & stainable

🏠Indoor & outdoor use

🕳️Fills large gaps & cracks

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NT$1051

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In stock

Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Seal smart, save energy, and upgrade your space effortlessly!

CUSTOM FINISH READY - Easily sand, paint, or stain after curing to blend seamlessly with your décor.
VERSATILE HOME ARMOR - Perfectly engineered for both indoor and outdoor applications, from windows to foundations.
ECO FRIENDLY EFFICIENCY - No HCFCs or CFCs—safe for your home and the planet.
PRECISION SIZED 8 OZ CAN - Smaller can means less waste and just the right amount for your quick fixes.
SEAL EVERY CRACK LIKE A PRO - Expands to fill and insulate large holes, preventing drafts and moisture intrusion.

Red Devil 090806 Spray Foam is an 8 oz expanding polyurethane foam sealant designed to fill large gaps, cracks, and holes. It creates an airtight, waterproof bond that insulates and prevents drafts both indoors and outdoors. The foam cures to a sandable, paintable, and stainable finish, making it ideal for professional-quality repairs and upgrades. Environmentally safe with no HCFCs or CFCs, this smaller can size reduces waste and is perfect for targeted home improvement projects.

Specifications

ASIN	B07J4631VQ
Best Sellers Rank	#75,089 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #115 in Urethane Adhesives
Brand Name	Red Devil
Color	Off-White
Compatible Material	Alloy Steel
Customer Reviews	4.2 4.2 out of 5 stars (2,939)
Global Trade Identification Number	00075339016343
Included Components	1
Item Dimensions	2.5 x 2.5 x 8.5 inches
Item Form	Foam
Item Type Name	Large Gaps & Cracks Polyurethane Foam Sealant
Item Weight	8 Ounces
Manufacturer	Red Devil
Material Type	Blend
Model	090806
Number of Items	1
Part Number	090806
Style Name	Pack of 1
Surface Recommendation	Window
UPC	075339016343
Unit Count	8.0 Ounce
Water Resistance Level	Waterproof

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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NT$1051

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In stock

Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Taiwan.

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