{"product_id":"sika-sikaflex-self-leveling-sealant-gray-29-fl-oz-polyurethane-waterproof-flexible-seal-for-horizontal-concrete-joints","title":"SIKA Sikaflex Self-Leveling Sealant — Gray 29 fl oz Polyurethane, Waterproof Flexible Seal for Horizontal Concrete Joints","description":"\u003cstrong\u003eSIKA Sikaflex Self-Leveling Sealant is a one-component polyurethane designed to flow into and seal horizontal concrete expansion joints, providing a flexible, waterproof repair with a professional finish.\u003c\/strong\u003e\n\n\u003cp\u003eThis 29 fl oz gray cartridge delivers a self-leveling formula made specifically for horizontal surfaces such as driveways, sidewalks, garages, patios, and warehouse floors. The single-component polyurethane cures to an elastic, weather-resistant seal that resists cracking and moisture intrusion while accommodating normal joint movement. It’s intended for applications where tooling isn’t practical — the material levels itself to match the surface without manual shaping.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this sealant behave when applied to horizontal concrete joints?\u003c\/h3\u003e\n\u003cp\u003eSIKA Sikaflex is formulated to flow and settle into horizontal joints, eliminating the need for tooling to create a flush surface. It forms a continuous bead that becomes tack-free within hours and reaches a durable cure within days, depending on temperature and humidity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSelf-leveling consistency spreads evenly across joint surfaces.\u003c\/li\u003e\n  \u003cli\u003eTack-free in a few hours; full cure in under a week in typical conditions.\u003c\/li\u003e\n  \u003cli\u003eMaintains elasticity to follow minor thermal or load-induced movement.\u003c\/li\u003e\n  \u003cli\u003ePaintable and sandable after cure for aesthetic finishing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this product keep water out and resist weather damage?\u003c\/h3\u003e\n\u003cp\u003eOnce fully cured, the polyurethane compound becomes waterproof and prevents water infiltration that can damage substrates. The cured seal retains permanent elasticity and resists aging from sun, rain, and freeze-thaw cycles, helping joints remain effective for extended periods.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWaterproof formulation prevents moisture penetration into joints.\u003c\/li\u003e\n  \u003cli\u003eHigh resistance to UV exposure and weathering.\u003c\/li\u003e\n  \u003cli\u003eElastic performance reduces risk of cracking under temperature shifts.\u003c\/li\u003e\n  \u003cli\u003eSuitable for external horizontal surfaces exposed to elements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat kinds of surfaces and projects is this cartridge best suited for?\u003c\/h3\u003e\n\u003cp\u003eThis 29 fl oz cartridge is tailored for larger horizontal projects where a self-leveling seal is needed without tooling: driveways, industrial floors, pedestrian pavements, and garage slabs. Use it on concrete joints where movement accommodation, waterproofing, and a neat, flush finish are priorities.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDriveways and sidewalk expansion joints repair and sealing.\u003c\/li\u003e\n  \u003cli\u003eGarage and warehouse floor joints subject to vehicle traffic.\u003c\/li\u003e\n  \u003cli\u003ePatios, steps, and other horizontal concrete installations.\u003c\/li\u003e\n  \u003cli\u003eWorks in new construction and maintenance\/repair contexts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I apply SIKA Sikaflex Self-Leveling Sealant for best results?\u003c\/h3\u003e\n\u003cp\u003eUse a caulking gun compatible with large-capacity cartridges and ensure joints are clean and dry before application. Cut the nozzle to match joint width, dispense steadily so the product flows level, and allow appropriate cure time; no tooling is required for a flush finish.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClean joint of dirt, loose debris, oils, and standing water before use.\u003c\/li\u003e\n  \u003cli\u003eSelect nozzle opening to match joint width; dispense steadily for an even bead.\u003c\/li\u003e\n  \u003cli\u003eAvoid application on vertical surfaces — product is meant for horizontal joints.\u003c\/li\u003e\n  \u003cli\u003ePaint or sand the cured surface if a blended finish is desired.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Homeowners, contractors, and facilities managers who need a reliable, self-leveling joint sealant for horizontal concrete surfaces will find this SIKA Sikaflex cartridge useful. It’s particularly suited to larger projects where a professional, flush finish is preferred without the labor of tooling — ideal for driveways, garages, sidewalks, patios, and industrial floors that require a durable, waterproof, and elastic seal.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this sealant on vertical joints?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This Sikaflex self-leveling sealant is formulated for horizontal joints and will not stay in place on vertical surfaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long until the seal is fully cured?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It becomes tack-free in a few hours and typically reaches full cure within a week, depending on temperature and humidity.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SIKA","offers":[{"title":"Default Title","offer_id":52912431628600,"sku":"B000RUKZSA","price":70.27,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/6799\/6984\/files\/sika-front-label-cartridge.jpg?v=1788626288","url":"https:\/\/kelorix.ca\/products\/sika-sikaflex-self-leveling-sealant-gray-29-fl-oz-polyurethane-waterproof-flexible-seal-for-horizontal-concrete-joints","provider":"Kelorix Canada | Shop Home, Electronics, Beauty, Toys \u0026 More","version":"1.0","type":"link"}