{"product_id":"klean-strip-bulldog-adhesion-promoter-for-automotive-plastics-metal-1-gal-ready-to-spray-quick-dry","title":"KLEAN-STRIP Bulldog Adhesion Promoter for Automotive Plastics \u0026 Metal — 1 Gal Ready-to-Spray, Quick-Dry","description":"\u003cp\u003e\u003cstrong\u003eKlean-Strip Bulldog Adhesion Promoter is a ready-to-spray, quick-drying primer that improves paint adhesion on automotive plastics, metals, aluminum and fiberglass while filling 320-grit scratches.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for collision repair shops and serious DIYers, this one-gallon adhesion promoter cuts prep time by drying tack-free in about five minutes and stays active up to 24 hours. It comes pre-formulated for spray application with no mixing required, is tintable, and can be blended into basecoat or clearcoat to enhance flexibility, flake laydown, color consistency, and edge wetting. Use it on substrates such as TPO, polypropylene, SMC, pre-painted metals, aluminum and fiberglass to create a reliable paint bond before topcoats.\u003c\/p\u003e\n\n\u003ch3\u003eHow fast will I be able to paint after applying Bulldog Adhesion Promoter?\u003c\/h3\u003e\n\u003cp\u003eBulldog is engineered for quick turnaround: it becomes tack-free in roughly five minutes under normal shop conditions and remains effective for up to 24 hours. If you exceed that window, a light tack and recoat restores adhesion performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTack-free in about 5 minutes for faster workflow.\u003c\/li\u003e\n  \u003cli\u003eMaintains activity up to 24 hours for flexible scheduling.\u003c\/li\u003e\n  \u003cli\u003eRe-tack and apply a light coat if left longer than 24 hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich surfaces and repair scenarios is this adhesion promoter suitable for?\u003c\/h3\u003e\n\u003cp\u003eBulldog was formulated to stick to a wide range of automotive substrates, including painted and unpainted metals, aluminum, fiberglass, and common plastic materials used in bumpers and trim. It fills 320-grit scratches and supports both large body shop jobs and small localized repairs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks on TPO, polypropylene, SMC, fiberglass, aluminum, and pre-painted metal.\u003c\/li\u003e\n  \u003cli:fills scratches to smooth minor prep imperfections.\u003e\n  \u003cli:ideal for bumper repairs fender work and mixed-material panels.\u003e\n\u003c\/li:ideal\u003e\u003c\/li:fills\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDo I need to mix or thin Bulldog Adhesion Promoter before use?\u003c\/h3\u003e\n\u003cp\u003eNo mixing is required — Bulldog comes ready to spray straight from the container. It’s tintable and can be added into base or clearcoat systems to improve flexibility and finish characteristics when integrated into your paint process.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo pre-mixing: spray-ready formulation saves prep time.\u003c\/li\u003e\n  \u003cli\u003eTintable for color adjustments or compatibility needs.\u003c\/li\u003e\n  \u003cli:can be blended into basecoat to enhance finish performance.\u003e\n\u003c\/li:can\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat technical or safety information should I check before using it?\u003c\/h3\u003e\n\u003cp\u003eRefer to the product’s Technical Data Sheet for full instructions on proper application, recommended equipment settings, handling, and storage. Follow local regulations and shop safety practices for ventilation and personal protective equipment when spraying solvent-borne materials.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli:consult the technical data sheet for spray recommendations and limits.\u003e\n  \u003cli:observe storage handling and disposal guidance on the tds label.\u003e\n  \u003cli:use appropriate ppe and shop ventilation when applying.\u003e\n\u003c\/li:use\u003e\u003c\/li:observe\u003e\u003c\/li:consult\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this product is for: Klean-Strip Bulldog Adhesion Promoter is intended for professional body shops, collision repair technicians, and experienced automotive hobbyists who need a dependable, fast-drying primer for mixed-material panels. It’s especially useful when working with bumper plastics and lightweight metal panels where reliable adhesion and quick turnaround matter.\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 Bulldog be used on polypropylene bumpers?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Bulldog is formulated for plastics like polypropylene, TPO and SMC and improves paint adhesion on bumper repairs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does Bulldog remain effective after application?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It stays active up to 24 hours; if left longer, apply a light tack coat to restore adhesion before topcoating.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KLEAN-STRIP","offers":[{"title":"Default Title","offer_id":48081460101278,"sku":"B000BHIVYO","price":275.63,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/klean-strip-bulldog-front-gallon-container.jpg?v=1785805617","url":"https:\/\/northtrailauto.ca\/products\/klean-strip-bulldog-adhesion-promoter-for-automotive-plastics-metal-1-gal-ready-to-spray-quick-dry","provider":"North Trail Auto","version":"1.0","type":"link"}