--- product_id: 42749646 title: "Sikaflex 1a 20 oz Sausage, White, 1 Unit, One Component, Elastomeric, Non Sag, Polyurethane Concrete and Masonry Joint Sealant for Vertical and Horizontal Joints" brand: "sika" price: "฿2575" currency: THB in_stock: true reviews_count: 10 category: "Sika" url: https://www.desertcart.co.th/products/42749646-sikaflex-1a-20-oz-sausage-white-1-unit-one-component store_origin: TH region: Thailand --- # 6h initial cure time weather & waterproof ±35% joint flexibility Sikaflex 1a 20 oz Sausage, White, 1 Unit, One Component, Elastomeric, Non Sag, Polyurethane Concrete and Masonry Joint Sealant for Vertical and Horizontal Joints **Brand:** sika **Price:** ฿2575 **Availability:** ✅ In Stock ## Summary > 🔧 Seal smart, last long — the flexible fix your projects deserve! ## Quick Answers - **What is this?** Sikaflex 1a 20 oz Sausage, White, 1 Unit, One Component, Elastomeric, Non Sag, Polyurethane Concrete and Masonry Joint Sealant for Vertical and Horizontal Joints by sika - **How much does it cost?** ฿2575 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/42749646-sikaflex-1a-20-oz-sausage-white-1-unit-one-component) ## 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 - • **Dynamic Flex Seal:** Accommodates joint movement up to ±35%, ensuring crack-proof durability. - • **All-Weather Warrior:** Resists aging, weathering, and water for reliable seals in any climate. - • **Universal Bonding Power:** Strong adhesion to most materials without primer—speed up your workflow. - • **Effortless Pro Application:** Installs with any standard sausage caulking gun—no special tools needed. - • **Versatile Construction Essential:** Perfect for windows, doors, roofing, and concrete joints—your go-to sealant. ## Overview Sikaflex 1A is a one-component, moisture-cured polyurethane sealant designed for vertical and horizontal joints. It offers ±35% elasticity, strong adhesion without primer, and excellent weather resistance, curing fully in 24 hours. Ideal for sealing concrete, masonry, windows, and door frames, it delivers durable, waterproof seals with easy application using standard caulking guns. ## Description Sikaflex 1A is a moisture-cured, non-sag elastomeric sealant that provides durable and flexible seals for various construction joints. Its one-component formulation simplifies application, requiring only a standard caulking gun. Once cured, it forms a tough, elastic seal capable of accommodating joint movement up to ±35%, ensuring integrity over time. The sealant adheres strongly to most construction materials without a primer and offers excellent resistance to aging and weathering. Suitable for both vertical and horizontal joints, Sikaflex 1A is an ideal choice for sealing windows, door frames, roofing details, and other construction joints. Review: Awesome sealer for concrete and gap filler - This product worked great as a gap sealer between the concrete slab and bottom plate of our wood framed workshop. It is very rubbery when cured so it won't crack or shrink, very similar to silicone but with a rubbery feel to it. I have also used it as a sealer between the window flange and framing of a window opening in new construction applications. I think you can seal gaps up to 3/4" but that's gonn use a lot of material for a gap that large. I reccomend using appropriate size backer rod, then top coat with this product. -MLC Remodeling Review: Sika Works - After cleaning the expansion joint between the garage slab and driveway, I followed directions to ensure uniform depth with foam. Application was easy and required some smoothing, it turned out great. I highly recommend this product. ## Features - Easy Application: Requires only a standard sausage caulking gun for installation, eliminating the need for specialized tools. - Flexible and Durable: Accommodates joint movement up to ±35%, ensuring long-lasting seals that withstand expansion and contraction - Strong Adhesion: Bonds effectively to most construction materials without the need for a primer, simplifying the sealing process - Weather-Resistant: Exhibits excellent resistance to aging and weathering, making it suitable for diverse climates and conditions - Versatile Use: Ideal for sealing joints in windows, door frames, roofing details, and other construction applications. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00MH8ND16 | | Best Sellers Rank | #44,772 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Polyurethane Adhesives #81 in Urethane Adhesives | | Brand Name | SIKA | | Color | WHITE | | Customer Reviews | 4.1 4.1 out of 5 stars (44) | | Full Cure Time | 24 Hours | | Initial Hardening Time | 6 Hours | | Item Form | Liquid | | Item Weight | 1.9 Pounds | | Liquid Volume | 20 Fluid Ounces | | Manufacturer | SIKA | | Material Type | Polyurethane | | Maximum Gap Fill | 0.5 Inches | | Surface Recommendation | joints, fillets, windows, door frames, reglets, flashing | | Temperature Range | 4E+1 Degrees Fahrenheit | | UPC | 033886002981 | | Unit Count | 20.0 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** SIKA - **Color:** WHITE - **Full Cure Time:** 24 Hours - **Item Weight:** 1.9 Pounds - **Liquid Volume:** 20 Fluid Ounces ## Images ![Sikaflex 1a 20 oz Sausage, White, 1 Unit, One Component, Elastomeric, Non Sag, Polyurethane Concrete and Masonry Joint Sealant for Vertical and Horizontal Joints - Image 1](https://m.media-amazon.com/images/I/715Y8-yYzrL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awesome sealer for concrete and gap filler *by M***Z on November 6, 2020* This product worked great as a gap sealer between the concrete slab and bottom plate of our wood framed workshop. It is very rubbery when cured so it won't crack or shrink, very similar to silicone but with a rubbery feel to it. I have also used it as a sealer between the window flange and framing of a window opening in new construction applications. I think you can seal gaps up to 3/4" but that's gonn use a lot of material for a gap that large. I reccomend using appropriate size backer rod, then top coat with this product. -MLC Remodeling ### ⭐⭐⭐⭐⭐ Sika Works *by M***C on October 8, 2023* After cleaning the expansion joint between the garage slab and driveway, I followed directions to ensure uniform depth with foam. Application was easy and required some smoothing, it turned out great. I highly recommend this product. ### ⭐ Selling expired product *by C***. on March 1, 2026* This is an expired product. It’s pretty sad I have to wait to receive something that shouldn’t be used. Today is March 1 and it expired three weeks ago. ## Frequently Bought Together - Sikaflex 1A 91008, White, One Part Polyurethane Elastomeric Sealant, 600ml, Unipac - JES Innovations Cone Nozzle for Sausage and Bulk Caulk Guns, 10-Pack, SD-BCNOZZLE-10PK - Albion Engineering Company B12S20 B-Line Manual Sausage Caulking Gun, 20 oz, 12:1 Drive --- ## 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.co.th/products/42749646-sikaflex-1a-20-oz-sausage-white-1-unit-one-component](https://www.desertcart.co.th/products/42749646-sikaflex-1a-20-oz-sausage-white-1-unit-one-component) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*