{"product_id":"adcoseal-b100-butyl-rubber-sealant-rv-tank-exterior","title":"Adcoseal - B-100 Butyl Rubber Sealant - 10.3 oz Cartridge - Black - Exterior RV Tank Sealant","description":"\u003cdiv style=\"background-color: #f3f4f6; border-left: 4px solid #1d9bf0; padding: 16px; margin-bottom: 16px;\"\u003e\u003cstrong style=\"color: #1d9bf0;\"\u003e✓ ElkhartRVParts.com - The Only Authorized Place for Adcoseal Products\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f3f4f6; border-left: 4px solid #10b981; padding: 16px; margin-bottom: 20px;\"\u003e\u003cstrong style=\"color: #10b981;\"\u003e✓ 100% Verified Authentic OEM Grade Part\u003c\/strong\u003e\u003c\/div\u003e\n\n\u003cp\u003eWhen you need a professional-grade RV tank sealant that stands up to extreme weather and constant vibration, Adcoseal B-100 Butyl Rubber Sealant delivers the permanently flexible, weatherproof seal that RV owners and technicians trust. This single-component butyl-based sealant is specifically engineered for exterior RV applications including holding tank installations, roof repairs, and weatherproofing joints where traditional silicone sealants fail.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures \u0026amp; Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanently Flexible Formula\u003c\/strong\u003e - Remains pliable through temperature extremes and road vibration without cracking or hardening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Adhesion\u003c\/strong\u003e - Bonds to glass, metals, concrete, wood, masonry, and select plastics without primer on most clean surfaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Weathering Properties\u003c\/strong\u003e - Resists UV degradation, moisture, and temperature cycling for long-lasting exterior protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Stringing, Non-Staining\u003c\/strong\u003e - Easy to apply and tool with a standard caulking gun, leaves clean professional finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10.3 fl oz (305 ml) Cartridge\u003c\/strong\u003e - Standard size fits all caulking guns, black color blends with most RV exteriors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle Component System\u003c\/strong\u003e - No mixing required, ready to use straight from the cartridge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolvent Release Technology\u003c\/strong\u003e - Skins over quickly to protect against contaminants while curing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose Adcoseal B-100 Butyl Rubber Sealant?\u003c\/h2\u003e\n\u003cp\u003eUnlike generic silicone or acrylic sealants that crack and fail under RV conditions, Adcoseal B-100 is purpose-built for the unique demands of recreational vehicle applications. The butyl rubber formula maintains its flexibility through freeze-thaw cycles, road vibration, and UV exposure that would destroy ordinary sealants. Whether you're sealing a fresh water tank installation, repairing roof penetrations, or weatherproofing exterior joints, B-100 provides the professional-grade adhesion and durability that ensures your repair lasts for years. RV technicians choose B-100 for critical sealing applications because it delivers consistent performance across multiple substrate types without the need for expensive primers or surface treatments.\u003c\/p\u003e\n\n\u003ch2\u003eCompare RV Sealants\u003c\/h2\u003e\n\u003cp\u003eChoosing the right sealant for your RV repair depends on the application, substrate compatibility, and performance requirements. Here's how Adcoseal B-100 compares to other professional RV sealants:\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #dc2626; color: white;\"\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e5e7eb;\"\u003eProduct\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e5e7eb;\"\u003eType\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e5e7eb;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e5e7eb;\"\u003eColor\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e5e7eb;\"\u003eBest For\u003c\/th\u003e\n\u003cth style=\"padding: 12px; text-align: left; border: 1px solid #e5e7eb;\"\u003eView Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #fef2f2; border-left: 3px solid #dc2626;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eAdcoseal B-100\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eB100\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eButyl Rubber\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e10.3 oz\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eBlack\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eTank installations, exterior joints, roof repairs, multi-substrate bonding\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003cstrong\u003eCurrent Product\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eAlpha N2100 Alphaseal\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eN2100\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eAll-Purpose\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e10.3 oz\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eClear\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eVertical surfaces, sidewalls, end rails, non-sag applications\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003ca href=\"https:\/\/elkhartrvparts.com\/products\/alpha-systems-n2100-alphaseal-all-purpose-rv-sealant-10-3-oz-tube-862224\" style=\"color: #dc2626; font-weight: bold;\"\u003eView Product\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\n\u003cstrong\u003eICON Skylight Sealant\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eWhite Butyl\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eButyl Rubber\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e10 oz\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eWhite\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003eSkylight installations, white roof applications, self-leveling needs\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #e5e7eb;\"\u003e\u003ca href=\"https:\/\/elkhartrvparts.com\/products\/icon-sealant-skylight-white-butyl-rubber\" style=\"color: #dc2626; font-weight: bold;\"\u003eView Product\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e For tank installations and exterior joints requiring multi-substrate adhesion, butyl rubber sealants like B-100 offer superior flexibility and longevity compared to silicone. For vertical applications where sag resistance is critical, consider the Alpha N2100 non-sag formula.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Adcoseal B-100 Butyl Rubber Sealant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e B100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcode:\u003c\/strong\u003e 51381656\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCartridge Size:\u003c\/strong\u003e 10.3 fl oz (305 ml)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase Chemistry:\u003c\/strong\u003e Single-component butyl rubber, solvent release\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Temperature:\u003c\/strong\u003e Room temperature recommended for optimal gunning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkin Time:\u003c\/strong\u003e Forms protective skin before full cure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport Time:\u003c\/strong\u003e Minimum 8 hours for tooled or joined surfaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Substrates:\u003c\/strong\u003e Glass, metals, concrete, wood, masonry, some plastics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Method:\u003c\/strong\u003e Standard caulking gun, 45° angle, constant pressure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleanup:\u003c\/strong\u003e Mineral spirits or VM\u0026amp;P Naphtha (before skin forms)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e United States\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOne (1) Adcoseal B-100 Butyl Rubber Sealant cartridge - 10.3 oz\u003c\/li\u003e\n\u003cli\u003eApplication instructions printed on cartridge\u003c\/li\u003e\n\u003cli\u003eManufacturer quality assurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Standard caulking gun required (not included). Primer may be required for certain surfaces - test adhesion on a small area before full application.\u003c\/p\u003e\n\n\u003ch2\u003eApplication Instructions\u003c\/h2\u003e\n\u003ch3\u003eSurface Preparation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure all surfaces are clean, dry, and free from contaminants including oil, grease, dirt, and loose material\u003c\/li\u003e\n\u003cli\u003eRemove old sealant completely if replacing existing seal\u003c\/li\u003e\n\u003cli\u003eTest adhesion on a small area if substrate compatibility is uncertain\u003c\/li\u003e\n\u003cli\u003eApply primer if recommended for specific substrate (consult technical data sheet)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Process\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eLoad cartridge into standard caulking gun\u003c\/li\u003e\n\u003cli\u003eCut nozzle at 45° angle to desired bead size (start small, can always enlarge)\u003c\/li\u003e\n\u003cli\u003ePuncture inner seal with wire or nail\u003c\/li\u003e\n\u003cli\u003eUse sealant at room temperature for easiest application and smooth flow\u003c\/li\u003e\n\u003cli\u003eHold gun at 45° angle to joint and apply with constant, steady pressure\u003c\/li\u003e\n\u003cli\u003eMaintain consistent bead size and avoid gaps or air pockets\u003c\/li\u003e\n\u003cli\u003eTool or smooth bead immediately before skin forms (use wet finger or tool)\u003c\/li\u003e\n\u003cli\u003eIf bonding two surfaces, join within working time and support for minimum 8 hours\u003c\/li\u003e\n\u003cli\u003eClean excess material immediately with mineral spirits or VM\u0026amp;P Naphtha\u003c\/li\u003e\n\u003cli\u003eAllow full cure time before exposing to weather or stress\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eLimitations \u0026amp; Important Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNot recommended for window glazing applications or hidden joints requiring non-skinning, non-hardening sealant\u003c\/li\u003e\n\u003cli\u003ePrimer may be required for optimal adhesion on certain plastics or porous surfaces\u003c\/li\u003e\n\u003cli\u003eDo not apply to wet, frozen, or contaminated surfaces\u003c\/li\u003e\n\u003cli\u003eNot suitable for continuous water immersion applications\u003c\/li\u003e\n\u003cli\u003eTest compatibility with plastics before full application as some formulations may affect certain polymers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible Models \u0026amp; Alternatives\u003c\/h2\u003e\n\u003cp\u003eAdcoseal B-100 is the professional choice for RV tank installations and exterior sealing. For specialized applications, consider these complementary products:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/elkhartrvparts.com\/products\/alpha-systems-n2100-alphaseal-all-purpose-rv-sealant-10-3-oz-tube-862224\" style=\"color: #dc2626;\"\u003eAlpha N2100 All-Purpose RV Sealant\u003c\/a\u003e - Non-sag formula for vertical surfaces and sidewall repairs\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/elkhartrvparts.com\/products\/icon-sealant-skylight-white-butyl-rubber\" style=\"color: #dc2626;\"\u003eICON White Butyl Sealant\u003c\/a\u003e - Self-leveling white sealant for skylight installations and white roof applications\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/elkhartrvparts.com\/products\/alpha-systems-q130-1-8-x-1-2-x-30-butyl-tape-white-case-of-24-2020002261\" style=\"color: #dc2626;\"\u003eAlpha Q130 Butyl Tape\u003c\/a\u003e - Gasket tape for trim and rail installations, 100% VOC free\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/elkhartrvparts.com\/collections\/rv-tank-fittings\" style=\"color: #dc2626;\"\u003eRV Tank Fittings Collection\u003c\/a\u003e - Complete selection of tank hardware and installation accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eHow do I apply Adcoseal B-100 for best results?\u003c\/h3\u003e\n\u003cp\u003eFor optimal results, ensure surfaces are completely clean and dry, apply at room temperature using a standard caulking gun at a 45° angle with constant pressure, and tool the bead immediately before it skins over. Support bonded surfaces for at least 8 hours before subjecting to stress or movement.\u003c\/p\u003e\n\n\u003ch3\u003eIs Adcoseal B-100 compatible with RV holding tanks?\u003c\/h3\u003e\n\u003cp\u003eYes, B-100 is specifically designed for RV tank installations and exterior sealing applications. Its butyl rubber formula provides excellent adhesion to the metals, plastics, and composites commonly used in RV tank construction, and maintains flexibility through temperature extremes and road vibration.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's the difference between butyl rubber sealant and silicone?\u003c\/h3\u003e\n\u003cp\u003eButyl rubber sealants like B-100 remain permanently flexible and provide superior adhesion to a wider range of substrates without primers. Unlike silicone, butyl sealants are paintable, offer better resistance to UV degradation, and maintain their seal through extreme temperature cycling and mechanical stress common in RV applications.\u003c\/p\u003e\n\n\u003ch3\u003eCan I use B-100 on vertical surfaces or will it sag?\u003c\/h3\u003e\n\u003cp\u003eB-100 has moderate sag resistance and works well on horizontal and slightly angled surfaces. For vertical applications, sidewalls, or overhead joints where sag resistance is critical, consider the Alpha N2100 non-sag formula which is specifically designed for those applications.\u003c\/p\u003e\n\n\u003ch3\u003eHow long does Adcoseal B-100 take to cure?\u003c\/h3\u003e\n\u003cp\u003eB-100 forms a protective skin relatively quickly (within hours depending on temperature and humidity), but bonded or tooled surfaces should be supported for a minimum of 8 hours. Full cure time varies with temperature, humidity, and joint depth - allow 24-48 hours before exposing to weather or mechanical stress.\u003c\/p\u003e\n\n\u003ch3\u003eWhat surfaces require primer before applying B-100?\u003c\/h3\u003e\n\u003cp\u003eMost clean, dry surfaces including glass, metals, concrete, wood, and masonry bond well without primer. However, certain plastics, porous materials, or contaminated surfaces may require primer for optimal adhesion. Always test on a small area first, and consult the technical data sheet for specific substrate recommendations.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Elkhart RV Parts?\u003c\/h2\u003e\n\u003cp\u003eWhen you purchase Adcoseal B-100 from Elkhart RV Parts, you're getting 100% authentic OEM-grade product backed by our commitment to quality and customer satisfaction. We are an authorized distributor of professional RV components, ensuring you receive genuine products with full manufacturer support. Our team understands RV systems and can provide expert guidance on product selection and application. We offer fast shipping, secure packaging to prevent damage, and responsive customer support to answer your technical questions.\u003c\/p\u003e\n\n\u003cdiv style=\"background-color: #f3f4f6; border-left: 4px solid #dc2626; padding: 16px; margin-top: 20px;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold; color: #dc2626;\"\u003eReady to seal your RV tank or exterior repair with professional-grade results? Add Adcoseal B-100 to your cart now, or chat with our AI Live Chat for product recommendations and technical support.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Elkhart RV Parts","offers":[{"title":"Default Title","offer_id":34428351381656,"sku":"B100","price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0346\/2397\/9579\/products\/31fTyzsJHNL.jpg?v=1590173421","url":"https:\/\/elkhartrvparts.com\/en-ca\/products\/adcoseal-b100-butyl-rubber-sealant-rv-tank-exterior","provider":"Elkhart RV Parts","version":"1.0","type":"link"}