Will this work to repair cracks in my pool skimmer? Is it elastic or hard like epoxy when cured?

It is elastomeric and should work well for that I would think. I used it to seal the roof seams on a 2015 GMC pickup and it worked great. Keep in mind it is self leveling so it spreads out a bit on its own.

Would this work for adhering rubber matting to a wooden and aluminum boat deck?

yes, it would work. A permanent solution would be 3M 5200 sealant. Try a small piece first!

can i use this to attach solar panels to camper roof? pnls weigh 24pnds.

I used mine for water proofing sealant while glueing down a metal flang which weighed very little. Not sure about the solar panels

Would this work in a swimming pool. I have a concrete pool that has plexiglass windows in the sides below the water level.

I believe so, we use it on the seams of our water slide that's underwater at all times.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

(Quantity 1) - Sika Sikaflex 291 Lot Slow Cure White 10.3 Oz. 300 Ml

Product ID: 754292036

Details

Brand
SIKA
Item Form
Paste
Material
1-C PU
Special Feature
Self Leveling
Specific Uses For Product
Inside Marine

⏳24-hour full cure time

⚓Marine-grade adhesion

💧Waterproof & saltwater resistant

R2037

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Description

⚓ Seal your marine projects with confidence—because only the best will do!

CUSTOM FINISH READY - White sealant sands repeatedly without losing stability—perfect for a polished look.
DURABILITY THAT LASTS - Non-corrosive, vibration-resistant seal keeps your projects secure in any environment.
EFFORTLESS APPLICATION - One-part polyurethane paste applies smoothly with manual or powered piston guns.
UNMATCHED MARINE BONDING - Adheres flawlessly to wood, fiberglass, metal & more—above or below waterline.
RESISTANT TO THE ELEMENTS - Withstands fresh & saltwater, dilute acids, fuels, oils, and fats for ultimate protection.

Sika Sikaflex 291 Lot Slow Cure White is a premium 1-part polyurethane marine sealant designed for superior adhesion and durability on multiple surfaces. It cures fully in 24 hours, is waterproof, saltwater resistant, and can be sanded repeatedly for a professional finish. Ideal for both above and below waterline applications, it offers vibration resistance and easy application with piston guns, making it the go-to choice for marine and interior sealing needs.

Specifications

ASIN	B007H2R9SK
Brand Name	SIKA
Color	white
Container Type	Bottle
Customer Reviews	4.4 4.4 out of 5 stars (141)
Full Cure Time	24 Hours
Global Trade Identification Number	00033886000758
Item Form	Paste
Item Package Quantity	1
Item Weight	10.1 Ounces
Manufacturer	SIKA
Material Type	1-C PU
Model	90925
Number of Pieces	1
Other Special Features of the Product	Self Leveling
Part Number	90925
Specific Uses For Product	Inside, Marine, Universal
UPC	033886002707 338860007588 033886000758 033886000741
Unit Count	10.1 Count
Viscosity Level	Medium to High
Volume	300 Milliliters
Water Resistance Level	Waterproof

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

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

5 days ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R2037

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews