Will this dry solid or is it flexible once dry?

its fairly solid - if you press on it it has the flex of the rubber tread on a car tyre

Would it be good for rubber seal on car doors

It is a permanent waterproof sealant, seems to be for total immersion, not sure it would be the right thing, Sika-Sikaflex do other automotive sealants/adhesives that might also work.

Would this seal a car windscreen and sunroof? Water leaking into car.

Yes it will do the job but is an adhesive as well as a sealant, there are other sealants for that purpose, Sikaflex goes off quickly so more difficult to work with and once you use some the remainder goes off, unless you seal it off well, I would look for a windscreen sealant, this is used mostly for glueing on panels..

I have a wooden hot tub and want to seal the inside joint between the sides and base. Is this suitable.

Hi Mike, If the joint will be permanently immersed then I'm sorry It's not suitable. Very few single part products are. If , on the other hand it's not for underwater, it will work perfectly. Hope that helps.

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Sikaflex 291i Black Multi-Functional Adhesive Sealant for Marine Application - Black

Sikaflex 291i Black Multi-Functional Adhesive Sealant for Marine Application - Black

Product ID: 47904794

Details

Brand
Sika
Item dimensions L x W x H
48 x 48 x 230
Item weight
0.4 Kilograms
Material
Polyurethane
Style
Cartridge

⚓Marine-grade waterproof sealant

🖤Sleek black finish for seamless bonding

⏱️Fast curing for quick leak fixes

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€ 35.41

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Description

🛠️ Seal it like a pro, sail leak-free!

TRUSTED BY PROS - Swiss-engineered quality with 4.6-star rating from 3,300+ users
SLEEK STEALTHY - Black polyurethane formula blends invisibly on dark surfaces
RAPID SEAL ACTION - Quick curing paste saves time on critical repairs
ULTIMATE LEAK DEFENSE - Stops marine leaks fast with durable waterproof bonding
VERSATILE APPLICATION - Perfect for doors, tiles, windows, and all marine surfaces

Sikaflex 291i Black is a premium polyurethane adhesive sealant designed specifically for marine applications. It offers fast curing, waterproof protection, and a sleek black finish that blends seamlessly on various surfaces including doors, tiles, and windows. Manufactured in Switzerland, this 300ml cartridge is highly rated for its durability and ease of use, making it a top choice for professionals and enthusiasts aiming to prevent leaks and maintain vessel integrity.

Specifications

ASIN	B004ZF8L0M
Best Sellers Rank	25,971 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 39 in Boat Maintenance Supplies
Brand	Sika
Colour	Black
Compatible Material	Polyurethane
Country Of Origin	Switzerland
Customer Reviews	4.6 4.6 out of 5 stars (3,397)
Global Trade Identification Number	07612894815047
Included Components	1 cartridge
Item Dimensions	48 x 48 x 230 millimetres
Item Form	Paste
Item Type Name	Sikaflex 291i Black Multifunctional adhesive sealant for marine applications
Item Weight	0.4 Kilograms
Manufacturer	Sikaflex
Manufacturer Part Number	291i Black
Material	Polyurethane
Model Number	291i
Number of Items	1
Product Warranty	Product guarantees 0 months.
Style Name	Cartridge
Surface Recommendation	Door, Tile, Window
Unit Count	300.0 millilitre
Water Resistance Level	Waterproof

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How is product pricing calculated?+

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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TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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€ 35.41

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Received my product in pristine condition. Great service overall.

1 month ago

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