--- product_id: 754292036 title: "(Quantity 1) - Sika Sikaflex 291 Lot Slow Cure White 10.3 Oz. 300 Ml" brand: "sika" price: "€ 108.92" currency: EUR in_stock: true reviews_count: 5 category: "Sika" url: https://www.desertcart.hr/products/754292036-quantity-1-sika-sikaflex-291-lot-slow-cure-white-10 store_origin: HR region: Croatia --- # 24-hour full cure time Marine-grade adhesion Waterproof & saltwater resistant (Quantity 1) - Sika Sikaflex 291 Lot Slow Cure White 10.3 Oz. 300 Ml **Brand:** sika **Price:** € 108.92 **Availability:** ✅ In Stock ## Summary > ⚓ Seal your marine projects with confidence—because your boat deserves the best! ## Quick Answers - **What is this?** (Quantity 1) - Sika Sikaflex 291 Lot Slow Cure White 10.3 Oz. 300 Ml by sika - **How much does it cost?** € 108.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/754292036-quantity-1-sika-sikaflex-291-lot-slow-cure-white-10) ## Best For - sika enthusiasts ## Why This Product - Trusted sika brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Paint-Ready Finish:** Sands smoothly without losing stability—perfect for a professional, polished look. - • **Durability That Lasts:** Non-corrosive, vibration-resistant seal that stands up to harsh marine environments. - • **Effortless Application:** One-part polyurethane paste, self-leveling and compatible 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 & salt water, dilute acids, fuels, oils, and fats for versatile protection. ## Overview Sika Sikaflex 291 Lot Slow Cure White is a premium 1-part polyurethane marine sealant designed for superior adhesion and durability on multiple surfaces including wood, fiberglass, and metal. It cures fully in 24 hours, is waterproof, saltwater resistant, and self-leveling for a smooth finish that can be sanded and painted. Ideal for professional marine applications requiring a resilient, vibration-resistant joint seal. ## Description When you need marine grade sealants that produce a strong, secure bond on a wide range of surfaces commonly found in marine applications, the Sikaflex-291 LOT White Sealant is the ideal choice. Specially designed for long time work is required, lower temperatures increase the cure period The general skinning period is 4 hours, then you can paint it for a more professional finish. The Sikaflex-291 LOT is a self-leveling marine grade sealant so there is no need to download tools to flatten it. The 10 fluid ounce cartridge conveniently fits a variety of piston guns. Review: I used this to attach a heavy duty rub rail on my old BW Outrage (belt and suspenders approach, I didn't trust that the screws that came with the rub rail would work). It's been six months since I did the work and it seems to be holding well. Cures somewhat quickly which makes it tricky to use on a large area in summer heat. I'd use it again before the #M product. Review: It's sikaflex works great on boats , cheaper than in town also ## Features - PERFECT FOR MARINE USES - Sika 291 adheres to materials commonly used in marine construction such as wood, fiberglass, metal, metal primers, paint coatings and more. Use above or below the water line - Versatile and Durable - Non-corrosive, resilient, vibration-resistant joint seal on deck Can be used in a variety of interior - Formulated for Performance - This one-part polyurethane marine grade sealant cures when exposed to air moisture. White sealant can be sanded over and over without compromising stability - Fresh and salt water resistant - resistant to dilute acids and caustic solutions. Provides temporary resistance to fuel, mineral oil, vegetable and animal fats - EASY TO APPLY - Apply this one part polyurethane paste using manual, pneumatic or electric powered piston gun. For optimum performance, clean and dry surface before installation ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B007H2R9SK | | Brand Name | SIKA | | Color | white | | Container Type | Bottle | | Customer Reviews | 4.4 4.4 out of 5 stars (139) | | 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 | ## Product Details - **Brand:** SIKA - **Item Form:** Paste - **Material:** 1-C PU - **Special Feature:** Self Leveling - **Specific Uses For Product:** Inside, Marine, Universal ## Images ![(Quantity 1) - Sika Sikaflex 291 Lot Slow Cure White 10.3 Oz. 300 Ml - Image 1](https://m.media-amazon.com/images/I/51GrKuGzegL.jpg) ![(Quantity 1) - Sika Sikaflex 291 Lot Slow Cure White 10.3 Oz. 300 Ml - Image 2](https://m.media-amazon.com/images/I/71W3MGhJJVL.jpg) ![(Quantity 1) - Sika Sikaflex 291 Lot Slow Cure White 10.3 Oz. 300 Ml - Image 3](https://m.media-amazon.com/images/I/71Aghik0jnL.jpg) ![(Quantity 1) - Sika Sikaflex 291 Lot Slow Cure White 10.3 Oz. 300 Ml - Image 4](https://m.media-amazon.com/images/I/71O5FooI8LL.jpg) ![(Quantity 1) - Sika Sikaflex 291 Lot Slow Cure White 10.3 Oz. 300 Ml - Image 5](https://m.media-amazon.com/images/I/71EIu9LhgXL.jpg) ## Questions & Answers **Q: Will this work to repair cracks in my pool skimmer? Is it elastic or hard like epoxy when cured?** A: 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. **Q: Would this work for adhering rubber matting to a wooden and aluminum boat deck?** A: yes, it would work. A permanent solution would be 3M 5200 sealant. Try a small piece first! **Q: can i use this to attach solar panels to camper roof? pnls weigh 24pnds.** A: I used mine for water proofing sealant while glueing down a metal flang which weighed very little. Not sure about the solar panels **Q: Would this work in a swimming pool. I have a concrete pool that has plexiglass windows in the sides below the water level.** A: I believe so, we use it on the seams of our water slide that's underwater at all times. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***R on January 30, 2026* I used this to attach a heavy duty rub rail on my old BW Outrage (belt and suspenders approach, I didn't trust that the screws that came with the rub rail would work). It's been six months since I did the work and it seems to be holding well. Cures somewhat quickly which makes it tricky to use on a large area in summer heat. I'd use it again before the #M product. ### ⭐⭐⭐⭐⭐ Review *by D***K on October 23, 2025* It's sikaflex works great on boats , cheaper than in town also ### ⭐⭐⭐⭐⭐ Review *by R***Y on December 18, 2025* Works good. ## Frequently Bought Together - Sikaflex-291 LOT, White, Marine Adhesive and sealant, General All-Purpose PU Adhesive with Long Open time, 10.1 fl. oz - Sikaflex-291, White, General All-Purpose Fast Cure Marine Adhesive and sealant. Polyurethane sealant for Boats, 10.1 fl. oz Cartridge --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/754292036-quantity-1-sika-sikaflex-291-lot-slow-cure-white-10](https://www.desertcart.hr/products/754292036-quantity-1-sika-sikaflex-291-lot-slow-cure-white-10) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-19*