{"product_id":"sem-39681-self-etching-primer-gray-gallon","title":"SEM 39681 – Self-Etching Primer, Gray (Gallon)","description":"\u003cp\u003eSEM 39681 Self-Etching Primer, Gray () is a professional acid-etch primer for bare metal preparation in automotive collision repair. The acid-etch chemistry chemically bonds to bare steel, aluminum, and galvanized metal substrates — providing molecular-level adhesion that mechanical bite alone cannot match. No separate metal conditioner or conversion coating step required: SEM Self-Etching Primer treats, conditions, and primes the metal surface in a single application.\u003c\/p\u003e\n\u003cp\u003eGallon size is optimized for production environments running high volumes of bare metal repairs — spray gun application on full panels, replacement panels, and fleet vehicle structural work. Gray-colored formula provides visual contrast for coverage verification against bare metal. Compatible with waterborne and solvent-borne topcoat systems.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Single-Component Self-Etching Primer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrates:\u003c\/strong\u003e Bare steel, aluminum, galvanized metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Method:\u003c\/strong\u003e Spray gun\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTopcoat Compatible:\u003c\/strong\u003e Waterborne and solvent-borne systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 39681\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSEM Self-Etching Primer is a core shop supply for any collision center performing bare metal repairs. Available in aerosol, quart, and gallon sizes — stock all three formats for maximum workflow flexibility.\u003c\/p\u003e","brand":"SEM","offers":[{"title":"Default Title","offer_id":51530798694696,"sku":"SEM-39681","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/8358\/2760\/files\/SEM39681.png?v=1773287669","url":"https:\/\/refinishgo.com\/products\/sem-39681-self-etching-primer-gray-gallon","provider":"Refinish Distributors","version":"1.0","type":"link"}