{"product_id":"geocel-pro-flex-rv-flexible-sealant-black-10-oz-cartridge-4-pack-uv-resistant-elastic-waterproof-bond","title":"Geocel Pro Flex RV Flexible Sealant — Black 10 oz Cartridge 4-Pack, UV-Resistant \u0026 Elastic Waterproof Bond","description":"\u003cp\u003e\u003cstrong\u003eGeocel 28103 Pro Flex Black RV Flexible Sealant is a professional-grade, UV-resistant sealant designed to form a flexible, watertight bond for RV roofs, vents, seams and trim.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your RV weather-tight with a sealant formulated to remain elastic under temperature swings and to adhere to common roofing substrates. This 10 oz. cartridge pack of four delivers an economical supply for multiple repairs or a full-season maintenance project. The black formulation blends with darker roof surfaces and provides protection against water intrusion and wind-driven rain when applied correctly.\u003c\/p\u003e\n\n\u003ch3\u003eWhat surfaces and joints can I use this sealant on?\u003c\/h3\u003e\n\u003cp\u003eGeocel Pro Flex bonds to a wide range of materials typically found on recreational vehicles, including metal, PVC, EPDM, fiberglass and painted surfaces. It fills gaps and seals seams that are prone to leaks while conforming to movement without cracking.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRV roof seams, ridges and flashings\u003c\/li\u003e\n  \u003cli\u003eVent, skylight and air conditioner perimeters\u003c\/li\u003e\n  \u003cli\u003eTrim, gutters and metal roofing overlaps\u003c\/li\u003e\n  \u003cli\u003ePatching small splits in rubber or vinyl roof membranes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does it take to cure and how flexible is the finished bead?\u003c\/h3\u003e\n\u003cp\u003eCuring time varies with bead thickness and ambient conditions, typically skinning over in a few hours and achieving serviceable flexibility within 24–48 hours. The cured sealant remains elastic to handle expansion and contraction from temperature changes, reducing the risk of future leaks caused by rigid compounds.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSurface skin formation in hours under normal conditions\u003c\/li\u003e\n  \u003cli\u003eFunctional cure often within 1–2 days depending on humidity and thickness\u003c\/li\u003e\n  \u003cli\u003eRetains stretch and recovery to accommodate roof movement\u003c\/li\u003e\n  \u003cli\u003eSuitable for cold-weather flexibility and hot-weather stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I prepare the area and apply the sealant for best results?\u003c\/h3\u003e\n\u003cp\u003eProper surface preparation ensures adhesion: clean, dry and free of loose material, oils or old sealant. Cut the cartridge tip to the desired bead size, use a caulking gun for controlled application, then tool the bead for good contact. Follow manufacturer instructions for maximum performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove dirt, oxidation and old caulk; wipe with appropriate cleaner\u003c\/li\u003e\n  \u003cli\u003eMask adjacent surfaces for neat lines on visible areas\u003c\/li\u003e\n  \u003cli\u003eApply steady pressure with a caulking gun and tool the joint smooth\u003c\/li\u003e\n  \u003cli\u003eAllow recommended cure time before exposing to heavy weather\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose the black Pro Flex formula over other sealants?\u003c\/h3\u003e\n\u003cp\u003eThe black variant offers color matching on dark roofs and components while providing the same flexible, UV-tolerant properties as the Pro Flex line. It resists cracking and shrinkage that can occur with harder compounds, making it a better long-term option for joints that move or stretch.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eColor match for dark roofing and hardware for discreet repairs\u003c\/li\u003e\n  \u003cli\u003eDesigned to withstand roofing expansion and contraction\u003c\/li\u003e\n  \u003cli\u003eProfessional-grade adhesion for demanding RV environments\u003c\/li\u003e\n  \u003cli\u003eSold in a 4-pack for cost-effective maintenance and multiple repairs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Geocel 28103 Pro Flex Black is aimed at RV owners, mobile home managers, and professional technicians who need a reliable, flexible sealant for roof maintenance and leak repair. It’s ideal for anyone who prefers a black finish for cosmetic blending on dark surfaces and wants a multi-cartridge supply for scheduled upkeep or multiple repair sites.\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: Is this sealant paintable after curing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—most paints compatible with rubberized sealants can be applied after full cure, but test a small area first for adhesion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this on wet surfaces?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: For best adhesion, apply to clean, dry surfaces; performance on damp substrates is not recommended.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Geocel","offers":[{"title":"Default Title","offer_id":48080858513566,"sku":"B07XK8PMM2","price":73.25,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/geocel-pro-flex-black-front-packaging.jpg?v=1785790794","url":"https:\/\/northtrailauto.ca\/products\/geocel-pro-flex-rv-flexible-sealant-black-10-oz-cartridge-4-pack-uv-resistant-elastic-waterproof-bond","provider":"North Trail Auto","version":"1.0","type":"link"}