{"product_id":"spraymax-2k-rapid-primer-filler-aerosol-gray-high-build-fast-dry-sands-smooth","title":"SprayMax 2K Rapid Primer Filler Aerosol Gray – High-Build, Fast-Dry, Sands Smooth","description":"\u003cp\u003e\u003cstrong\u003eSprayMax 2K Rapid Primer Filler Gray is an isocyanate-free, two-component aerosol primer that builds fill quickly, dries fast, and sands smoothly for a spray-gun finish without the gun.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis ready-to-activate aerosol primer from SprayMax is designed to give bodyshop-quality primer performance in a single can. Formulated for properly prepared metal surfaces, the gray filler lays down a uniform, high-build layer that promotes good color holdout and accepts both 1K and 2K topcoats. Activation is done in-can, so you get consistent mixing, short flash times, and predictable sanding characteristics for fast turnarounds.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this 2K aerosol save time compared with conventional primers?\u003c\/h3\u003e\n\n\u003cp\u003eThe in-can activation and sprayable formulation remove the need for separate mixing cups and spray equipment setup. Short tack and full-dry times mean you can sand and move to topcoat sooner, reducing labor and shop time. Results approach those of a spray gun primer without the same equipment footprint.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eActivate inside the can for correct resin-to-hardener ratio every time.\u003c\/li\u003e\n  \u003cli\u003eFast drying enables quicker sanding and recoating cycles.\u003c\/li\u003e\n  \u003cli\u003eHigh-build fill reduces repeated application passes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it sand well and accept paint reliably?\u003c\/h3\u003e\n\n\u003cp\u003eYes—this primer is formulated to sand easily to a smooth surface, minimizing orange peel and pinholes before topcoat. Its gray tint helps you check coverage and transitions, and it provides adequate holdout to accept both 1K and 2K color and clearcoat systems when properly prepared.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSands to a uniform, smooth finish with standard abrasive grit.\u003c\/li\u003e\n  \u003cli\u003eGray color improves visibility of low spots and feathered edges.\u003c\/li\u003e\n  \u003cli\u003eCompatible with common 1K and 2K topcoat options when cured.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat substrates and prep are required for best results?\u003c\/h3\u003e\n\n\u003cp\u003eDesigned primarily for clean, properly prepped metal substrates, the primer performs best over bare steel and other automotive metals after degreasing and abrasion. Adequate surface cleaning and removal of rust, oil, and contaminants are essential to ensure adhesion and long-term durability.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eUse on properly prepared metal surfaces—clean, dry, and abraded.\u003c\/li\u003e\n  \u003cli\u003eRemove rust and contaminants before activation and application.\u003c\/li\u003e\n  \u003cli\u003eFollow manufacturer guidelines for flash times and recommended topcoats.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do you activate and apply the SprayMax 2K Rapid Primer Filler?\u003c\/h3\u003e\n\n\u003cp\u003eActivation is performed in the aerosol can, creating the two-component mix automatically; after shaking to distribute the activator, spray in overlapping passes. Hold the can at recommended distances and allow the short flash between coats. Cure fully before any sanding or topcoat application.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eActivate the in-can hardener per label instructions, then shake thoroughly.\u003c\/li\u003e\n  \u003cli\u003eSpray even passes at recommended distance for consistent build.\u003c\/li\u003e\n  \u003cli\u003eObserve dry times and complete curing before sanding or topcoating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Professionals and experienced DIYers who need a high-build, fast-drying primer without a spray-gun setup. It’s aimed at collision repair shops, restoration projects, and metal refinishing tasks where quick turnarounds, easy sanding, and reliable adhesion are priorities. Not intended for untreated plastics or substrates not specified by the manufacturer; always follow SprayMax preparation and safety guidelines.\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 I use this primer over rust-treated metal?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use only on properly prepared metal; heavily rusted areas should be cleaned and treated before priming to ensure adhesion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this compatible with all topcoat systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It accepts most 1K and 2K base and topcoat systems, but follow manufacturer's topcoat recommendations and allow full cure before repainting.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SprayMax","offers":[{"title":"Default Title","offer_id":67587517612217,"sku":"B00H2WEZW8","price":85.88,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/spraymax-front-aerosol-can.jpg?v=1790511495","url":"https:\/\/redleafauto.ca\/products\/spraymax-2k-rapid-primer-filler-aerosol-gray-high-build-fast-dry-sands-smooth","provider":"Redleaf Auto","version":"1.0","type":"link"}