{"product_id":"cromar-pro-grp-hardener","title":"Cromar Pro GRP Hardener - 1kg \u0026 5kg","description":"\u003ch3\u003eLiquid hardener for curing Pro GRP resin and top coat.\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eCromar Pro GRP Hardener\u003c\/strong\u003e is the catalyst used to activate \u003cstrong\u003e\u003ca href=\"\/products\/cromar-pro-grp-resin\"\u003ePro GRP Roofing Resin\u003c\/a\u003e\u003c\/strong\u003e and \u003cstrong\u003e\u003ca href=\"\/products\/cromar-pro-grp-top-coat\"\u003ePro GRP Top Coat\u003c\/a\u003e\u003c\/strong\u003e, allowing them to cure at ambient temperature.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in \u003cstrong\u003e1kg and 5kg bottles\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative;\"\u003e\n    System Role\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cul\u003e\n      \u003cli\u003eInitiates curing of Pro GRP resin\u003c\/li\u003e\n      \u003cli\u003eActivates Pro GRP top coat\u003c\/li\u003e\n      \u003cli\u003eControls working time based on dosage\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cp\u003eCorrect catalyst levels are essential for proper cure and laminate performance.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative;\"\u003e\n    Mixing Guidance\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cul\u003e\n      \u003cli\u003eTypical addition rate: \u003cstrong\u003e1–4% depending on temperature\u003c\/strong\u003e\n\u003c\/li\u003e\n      \u003cli\u003e10–40ml per kg of resin (temperature dependent)\u003c\/li\u003e\n      \u003cli\u003eAlways mix thoroughly for at least one minute\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003cp\u003eHigher temperatures require less hardener.\u003cbr\u003e\n    Lower temperatures require more.\u003c\/p\u003e\n\n    \u003cp\u003eAlways test first mix and adjust as needed.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative;\"\u003e\n    Specification\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cul\u003e\n      \u003cli\u003eType: Liquid curing agent\u003c\/li\u003e\n      \u003cli\u003eColour: Clear\u003c\/li\u003e\n      \u003cli\u003ePack Sizes: 1kg \/ 5kg\u003c\/li\u003e\n      \u003cli\u003eShelf Life: 12 months\u003c\/li\u003e\n      \u003cli\u003eFor Use With: Cromar Pro GRP Resin \u0026amp; Top Coat\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails style=\"margin-bottom:12px; border:1px solid #333; border-radius:10px; background:#1a1a1a; overflow:hidden;\"\u003e\n  \u003csummary style=\"cursor:pointer; font-weight:700; padding:16px 48px 16px 16px; font-size:18px; position:relative;\"\u003e\n    Summary\n    \u003cspan style=\"position:absolute; right:16px; top:50%; transform:translateY(-50%);\"\u003e▸\u003c\/span\u003e\n  \u003c\/summary\u003e\n  \u003cdiv style=\"padding:16px; border-top:1px solid #333;\"\u003e\n    \u003cp\u003eCromar Pro GRP Hardener activates and cures Pro GRP resin and top coat. Supplied in 1kg and 5kg bottles, it forms an essential part of the \u003cstrong\u003e\u003ca href=\"\/collections\/cromar-pro-grp\"\u003ePro GRP roofing system\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e","brand":"The Flat Roofing Shop","offers":[{"title":"1kg","offer_id":56787150438731,"sku":"PG-Hardener-1","price":19.03,"currency_code":"GBP","in_stock":true},{"title":"5kg","offer_id":56787150471499,"sku":"PG-Hardener-5","price":63.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/4054\/9451\/files\/cromar-pro-grp-hardener.jpg?v=1774560327","url":"https:\/\/theflatroofingshop.co.uk\/products\/cromar-pro-grp-hardener","provider":"The Flat Roofing Shop","version":"1.0","type":"link"}