{"product_id":"sikaflex-1a-kit-polyurethane-concrete-and-masonry-sealant-durable","title":"Sikaflex 1a Kit Polyurethane Concrete and Masonry Sealant - Durable","description":"\u003cp\u003eOur review of Sikaflex 1A Kit finds it best suited for contractors and experienced DIYers who need a reliable, single component polyurethane sealant for exterior joints. The bottom line: it seals small vertical and horizontal gaps effectively and cures to a tough, elastic seal with about +\/- 35% movement, making it a strong choice where long term weather and water resistance matter. The kit format and formulation are practical for windows, door frames, flashing and small concrete joints where non sag performance and adhesion without primer are important.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne component polyurethane:\u003c\/strong\u003e Ready to use out of the tube and moisture cured, eliminating mixing and simplifying application on job sites.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon sag formula:\u003c\/strong\u003e Designed for vertical and horizontal joints so it stays in place on walls and overhangs while it cures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh elasticity:\u003c\/strong\u003e Cures to a flexible seal with roughly +\/- 35% movement capacity to accommodate joint expansion and contraction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad adhesion:\u003c\/strong\u003e Bonds to most construction materials without a primer, reducing prep time for many common substrates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather and water resistant:\u003c\/strong\u003e Durable against aging and weathering and suitable for green or damp concrete conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified performance:\u003c\/strong\u003e Meets ASTM C-920 and relevant federal and Canadian standards for construction sealants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eContractors working on exterior building envelopes, roofing details, and small joint repairs will appreciate the combination of adhesion, flexibility and non sag properties. It is particularly useful where a single component product that bonds well without primer speeds work across windows, door frames, flashing and many concrete situations.\u003c\/p\u003e\n\u003cp\u003eHomeowners with small to medium projects can use it too, but those needing very large joint depths over 1\/2 in, or an adhesive with a long guaranteed shelf life, should consider alternatives. It is not intended for continuous deep joints where backer rod or different formulations would be required.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh adhesion to common construction materials, often without primer, which simplifies preparation.\u003c\/li\u003e\n\u003cli\u003eDurable, weather resistant cure that remains flexible for joint movement, useful in exterior applications.\u003c\/li\u003e\n\u003cli\u003eNon sag consistency works well on both vertical and horizontal surfaces for neat application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report variable feel in cured flexibility and occasional concerns about apparent shelf life, so inspect cartridges before use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eOne component polyurethane sealant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e10 oz tubes, pack of 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eAluminum Gray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMovement capability\u003c\/td\u003e\n\u003ctd\u003eApproximately +\/- 35%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum sealant depth\u003c\/td\u003e\n\u003ctd\u003eUp to 1\/2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApprovals\u003c\/td\u003e\n\u003ctd\u003eMeets ASTM C-920, TT-S-00230C and CAN\/CGSB 19.13-M87\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eSikaflex 1A is a practical, high performance polyurethane sealant for exterior construction joints where a one component, non sag product is needed. It offers strong adhesion, weather resistance and useful elasticity for most small joints and is good value for contractors and skilled DIYers; buyers should check cartridge condition if shelf life is a concern.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used on damp or green concrete?\u003c\/strong\u003e\u003cbr\u003eYes, the formulation is suitable for green and damp concrete applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs primer required for adhesion?\u003c\/strong\u003e\u003cbr\u003eIn most common construction materials it bonds without primer, but test on unfamiliar substrates first.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat maximum joint depth is recommended?\u003c\/strong\u003e\u003cbr\u003eDesigned for joints with a maximum depth of 1\/2 in; deeper joints need alternative methods or backer rod.\u003c\/p\u003e","brand":"AWF PRO","offers":[{"title":"Default Title","offer_id":48179162808539,"sku":"B0BPF37QJJ","price":93.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71W6kdFDc9L._SL1280.jpg?v=1769603129","url":"https:\/\/gearmusthave.com\/products\/sikaflex-1a-kit-polyurethane-concrete-and-masonry-sealant-durable","provider":"GearMustHave","version":"1.0","type":"link"}