{"product_id":"3m-7100039264-instant-adhesive-primer-ac79-8-fl-oz","title":"3M 7100039264 Instant Adhesive Primer AC79 8 Fl Oz","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe 3M 7100039264 is the Scotch-Weld Instant Adhesive Primer AC79, a colorless surface preparation primer formulated for use with instant adhesives on difficult-to-bond elastomeric substrates. AC79 is a California-compliant formula, making it suitable for job sites and shops that must meet VOC regulations. The primer is applied to each elastomeric surface before bonding, activating adhesion where standard cyanoacrylate adhesives would otherwise fail to grip. It is used by maintenance technicians, industrial assemblers, and trade professionals working with rubber and elastomeric sealing components in HVAC, plumbing, and mechanical systems.\u003c\/p\u003e\n\u003cp\u003eAC79 is designed specifically for elastomeric surfaces including silicone, EPDM, and other rubber-based materials that resist conventional bonding methods. Typical applications include sealing gasket repairs, elastomeric joint preparation, and pre-bond treatment on rubber components found in mechanical, HVAC, and plumbing assemblies. The primer primes each substrate surface individually before the instant adhesive is applied, improving adhesion on materials that are otherwise chemically incompatible with standard cyanoacrylate chemistry.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCalifornia-compliant VOC formula suitable for regulated job sites\u003c\/li\u003e\n  \u003cli\u003eFormulated for difficult-to-bond elastomers including silicone and EPDM\u003c\/li\u003e\n  \u003cli\u003eColorless finish leaves no visible residue on bonded surfaces\u003c\/li\u003e\n  \u003cli\u003eApply to each substrate surface individually before using instant adhesive\u003c\/li\u003e\n  \u003cli\u003e8 fl oz container sized for shop and field use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with instant adhesives on elastomeric substrates including silicone, EPDM, and similar rubber-based materials. Apply primer to each elastomeric surface prior to bonding.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eApply AC79 primer to each elastomeric substrate surface and allow it to dry before applying the instant adhesive. Ensure the work area is adequately ventilated when using solvent-based primers. Wear appropriate chemical-resistant gloves and eye protection per standard shop safety practice. Do not apply the instant adhesive until the primer has fully dried on all mating surfaces.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Colorless\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVolume\u003c\/strong\u003e: 8 fl oz\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.52 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 00051115313899\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: 3M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7100039264\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51345878647090,"sku":"7100039264","price":255.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310528440.jpg?v=1782065411","url":"https:\/\/voomisupply.com\/products\/3m-7100039264-instant-adhesive-primer-ac79-8-fl-oz","provider":"Voomi Supply","version":"1.0","type":"link"}