{"product_id":"polyester-surfacing-agent-hot-coat-resin","title":"Polyester Surfacing Agent","description":"\u003cp class=\"isSelectedEnd\"\u003e \u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePolyester Surfacing Agent is a wax solution dissolved in styrene used to convert polyester laminating resin into sanding (hot coat) resin. It is added during the final coat stage of surfboard construction to eliminate surface tackiness and allow the resin to fully cure to a sandable finish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen curing, the paraffin wax rises to the surface and “blooms,” forming a protective barrier between the resin and air. This prevents oxygen inhibition and ensures a complete surface cure suitable for sanding and finishing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis additive is essential for surfboard hot coats, gloss preparation, and any polyester resin application where a fully sandable surface is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Converts laminating resin into sanding (hot coat) resin\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Prevents surface tackiness during curing\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Wax bloom creates oxygen barrier for full surface cure\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Essential for surfboard hot coats and finishing applications\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Improves sanding performance and final surface quality\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Compatible with all polyester laminating resins\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eMix Ratio\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• 2 oz Surfacing Agent per 1 gallon of polyester laminating resin\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eApplication Notes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSurfacing agent must be thoroughly mixed into polyester resin before adding MEKP catalyst. Use only for final coat applications where sanding is required. Not intended for use in lamination layers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eShelf Life\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMinimum shelf life: \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1 year when stored properly\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Shaper Supply","offers":[{"title":"2 oz","offer_id":226460460,"sku":"851","price":8.0,"currency_code":"USD","in_stock":true},{"title":"4 oz","offer_id":1210462840,"sku":"852","price":11.0,"currency_code":"USD","in_stock":true},{"title":"8 oz","offer_id":226460490,"sku":"853","price":16.0,"currency_code":"USD","in_stock":true},{"title":"Quart (32 oz)","offer_id":12494693335118,"sku":"854","price":28.0,"currency_code":"USD","in_stock":true},{"title":"Gallon (128 oz)","offer_id":226460512,"sku":"855","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0168\/7050\/products\/polyester-surfacing-agent-hot-coat-wax.jpg?v=1780870558","url":"https:\/\/shapersupply.com\/products\/polyester-surfacing-agent-hot-coat-resin","provider":"Shaper Supply ","version":"1.0","type":"link"}