Could this be used along the bottom of bi-fold doors

no you will need to use a DPC Membrane underneath the Cill Section . This is used on top and possibly the sides to stop the thermal bridge between the steel and aluminium frameworks .

Could this be used to line the inside of a toilet tank?

Simple answer is I don't know but if the tank was clean & dry before you apply it then I don't see why not but don't know why you would want to.

Does this reduce outside noise?

I have this on a 5.5m insulated roller door which is 15 years old and has a "tiered" rubber seal at the bottom and in part it was to help with noise reduction. It has reduced the wind noise that used to come under the door a little and made it more comfortable in winter but unless you have a large gap I don't think the noise reduction will be significant. We did add a plastic curtain made from overlapping strips and that was far more effective on the noise reduction stake and both work well together in providing an insulating layer to keep heat in and noise out

what material is the foam?

It seems to be black polmer foam of ethylene propylene diene monomer

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Self-Adhesive Foam Tape 5M Long X 50 mm Wide x 3 mm Thick High Density Neoprene,Anti-Vibration,Anti-Collision Weather Stripping Gasket Seal SoundProof for Window Door

Product ID: 168562660

Details

Brand
fowong
Colour
Black Foam
Item thickness
3 Millimetres
Material
Foam
Product dimensions
5L x 0.05W

📏5 meters length for versatile coverage

🔇Soundproof & anti-vibration for quiet comfort

🛡️3 mm thick high-density neoprene for ultimate protection

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Upgrade your space with the ultimate seal—because every detail counts!

DIY FRIENDLY - No tools, no hassle—cut to size and stick on in minutes for instant upgrade.
SMART STORAGE - Comes in a resealable bag to keep your tape fresh and ready for your next project.
SEAL LIKE A PRO - Strong, grid-pattern adhesive ensures no peeling, locking in long-lasting protection.
MULTI SURFACE MASTER - Perfect for doors, windows, cars, speakers, and even marine gear—adaptable to your lifestyle.
WEATHERPROOF WARRIOR - Resists oil, corrosion, dust, and extreme weather—your all-season shield.

The fowong Self-Adhesive Foam Tape offers a 5-meter length of 50 mm wide, 3 mm thick high-density neoprene foam with a strong grid adhesive backing. Designed for superior soundproofing, anti-vibration, and weather resistance, it provides a durable seal for doors, windows, vehicles, and more. Easy to install without tools and stored in a resealable bag, it’s a versatile, professional-grade solution for insulation and protection.

Specifications

ASIN	B07VDR36D5
Best Sellers Rank	9,934 in DIY & Tools ( See Top 100 in DIY & Tools ) 15 in Weather Stripping
Brand	fowong
Colour	Black Foam With Yellow Back
Country of Origin	China
Customer Reviews	4.3 4.3 out of 5 stars (1,225)
Item Dimensions L x W	5L x 0.05W metres
Item Thickness	3 Millimetres
Manufacturer	fowong
Material	Foam
Number of Items	1
Recommended Uses For Product	Door, Electrical cabinets, Window
UPC	653846957191
Unit Count	5 meter

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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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19279CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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