{"product_id":"carbusonic-pva-release-agent-grp-automotive-mould-release-gelcoat-prep","title":"Carbusonic PVA Release Agent | GRP \u0026 Automotive Mould Release | Gelcoat Prep","description":"\u003cdiv\u003eCarbusonic PVA Release Agent\u003c\/div\u003e\n\u003cdiv\u003eGRP • Fibreglass • Gelcoat • Resin • Automotive Mould Release • Paint Prep\u003c\/div\u003e\n\u003cdiv\u003eCarbusonic PVA Release Agent is a professional film-forming, water-soluble barrier used to prevent bonding between mould surfaces and resins \/ gelcoat \/ composites. Once dry it forms a peel-away release film that helps deliver clean part release and easier post-process clean-up.\u003c\/div\u003e\n\u003cdiv\u003eWhy it works (in plain English)\u003c\/div\u003e\n\u003cdiv\u003ePVA (polyvinyl alcohol \/ PVOH) dries to a thin film that acts as a physical separation layer between the mould and the laminate\/gelcoat. After demoulding, the film can typically be peeled or washed away with water.\u003c\/div\u003e\n\u003cdiv\u003eKey Benefits\u003c\/div\u003e\n\u003cdiv\u003eGRP \/ fibreglass ready: ideal for gelcoat and resin moulding processes.\u003c\/div\u003e\n\u003cdiv\u003ePeel-away release film: dries to a continuous barrier to help prevent sticking.\u003c\/div\u003e\n\u003cdiv\u003eWater-soluble cleanup: removal can typically be done with water (no harsh solvents required).\u003c\/div\u003e\n\u003cdiv\u003eEasy application: can be applied by spray or wipe (thin, even coats recommended).\u003c\/div\u003e\n\u003cdiv\u003eHelps protect mould surfaces: barrier layer reduces direct contact with resin\/gelcoat.\u003c\/div\u003e\n\u003cdiv\u003eTrade-friendly: multi-size options for DIY users and professional shops.\u003c\/div\u003e\n\u003cdiv\u003eTypical Applications\u003c\/div\u003e\n\u003cdiv\u003eGRP mould making \u0026amp; composite lay-ups\u003c\/div\u003e\n\u003cdiv\u003eFibreglass repairs, panel production, kit car \/ custom fabrication\u003c\/div\u003e\n\u003cdiv\u003eGelcoat release on suitable mould substrates\u003c\/div\u003e\n\u003cdiv\u003eGeneral mould release where a peelable\/washable barrier film is preferred\u003c\/div\u003e\n\u003cdiv\u003eAutomotive bodywork processes where temporary barrier\/release film is useful\u003c\/div\u003e\n\u003cdiv\u003eApplication Instructions (Best Practice)\u003c\/div\u003e\n\u003cdiv\u003ePrep: Ensure the mould surface is clean, dry, and contaminant-free. Any wax\/release system should be fully cured\/buffed per manufacturer guidance.\u003c\/div\u003e\n\u003cdiv\u003eApply thin coats: Spray or wipe a light, even coat. Avoid flooding or runs.\u003c\/div\u003e\n\u003cdiv\u003eAllow to dry: Let each coat dry fully until it forms a continuous film (drying time depends on temperature\/airflow).\u003c\/div\u003e\n\u003cdiv\u003eBuild coverage: Apply additional thin coats as needed to ensure complete, uniform coverage on the mould face.\u003c\/div\u003e\n\u003cdiv\u003eMould as normal: Apply gelcoat\/resin\/laminate once the film is dry and continuous.\u003c\/div\u003e\n\u003cdiv\u003eDemould: Release the part. The PVA film typically stays on the mould\/part as a removable layer.\u003c\/div\u003e\n\u003cdiv\u003eRemove residue: Peel where possible or wash away with water after demoulding.\u003c\/div\u003e\n\u003cdiv\u003ePro tips:\u003c\/div\u003e\n\u003cdiv\u003eBest results come from multiple light coats rather than one heavy coat.\u003c\/div\u003e\n\u003cdiv\u003eWarm, dust-free conditions improve film uniformity.\u003c\/div\u003e\n\u003cdiv\u003eAlways test on an offcut \/ small area when using a new mould surface or process.\u003c\/div\u003e\n\u003cdiv\u003ePVA \/ PVOH Information (What it is)\u003c\/div\u003e\n\u003cdiv\u003ePVA is commonly used as shorthand for PVOH (polyvinyl alcohol) in mould release applications. It’s a water-soluble polymer that forms a film when dried, creating a barrier between the mould surface and the resin\/gelcoat system.\u003c\/div\u003e\n\u003cdiv\u003eIn practice, the film helps deliver a cleaner release and can simplify clean-up because the layer can typically be removed with water.\u003c\/div\u003e\n\u003cdiv\u003eFAQs\u003c\/div\u003e\n\u003cdiv\u003eQ: Is this suitable for GRP and fibreglass work?\u003c\/div\u003e\n\u003cdiv\u003eA: Yes — it’s designed for use as a film-forming barrier in GRP \/ fibreglass moulding and repair workflows, including gelcoat and resin systems.\u003c\/div\u003e\n\u003cdiv\u003eQ: Do I need wax as well as PVA?\u003c\/div\u003e\n\u003cdiv\u003eA: Many users apply PVA over a properly prepared waxed mould for best reliability. Your process depends on the mould substrate and finish requirements — always test for compatibility with your system.\u003c\/div\u003e\n\u003cdiv\u003eQ: How do I remove it after demoulding?\u003c\/div\u003e\n\u003cdiv\u003eA: The film can often be peeled or washed away with water. Avoid aggressive scraping on delicate mould finishes.\u003c\/div\u003e\n\u003cdiv\u003eQ: Can I spray it?\u003c\/div\u003e\n\u003cdiv\u003eA: Yes. Spraying typically gives the most uniform film. Apply thin coats and allow full drying between coats.\u003c\/div\u003e\n\u003cdiv\u003eQ: Does it leave residue?\u003c\/div\u003e\n\u003cdiv\u003eA: As a sacrificial film, it may leave a removable layer. Cleanup is typically easy with water, but results depend on application thickness and drying.\u003c\/div\u003e\n\u003cdiv\u003eQ: What sizes do you offer?\u003c\/div\u003e\n\u003cdiv\u003eA: List your available options in the variation selector (e.g., 250ml \/ 500ml \/ 1L \/ 5L). Trade\/bulk enquiries welcome.\u003c\/div\u003e\n\u003cdiv\u003eNotes:\u003c\/div\u003e\n\u003cdiv\u003eUse in a well-ventilated area and follow good workshop practice. Always test compatibility on a small area before full application, especially with new mould surfaces, coatings, or resin systems.\u003c\/div\u003e\n\u003cdiv\u003e👉 More Car Body \u0026amp; Paint Supplies in our eBay Store\u003c\/div\u003e\n\u003cdiv\u003eClick here to browse the Car Body \u0026amp; Paint Supplies category\u003c\/div\u003e\n\u003cdiv\u003eCarBusonic — UK developed automotive \u0026amp; workshop chemicals.\u003c\/div\u003e","brand":"Carbusonic","offers":[{"title":"250ml \/ Clear \/ Gloss","offer_id":54920758690125,"sku":"127667537553-250ml-Clear-Gloss","price":12.99,"currency_code":"GBP","in_stock":true},{"title":"250ml \/ Clear \/ Matt","offer_id":54920758722893,"sku":"127667537553-250ml-Clear-Matt","price":12.99,"currency_code":"GBP","in_stock":true},{"title":"250ml \/ Blue \/ Gloss","offer_id":54920758755661,"sku":"127667537553-250ml-Blue-Gloss","price":12.99,"currency_code":"GBP","in_stock":true},{"title":"250ml \/ Blue \/ Matt","offer_id":54920758788429,"sku":"127667537553-250ml-Blue-Matt","price":12.99,"currency_code":"GBP","in_stock":true},{"title":"500ml \/ Clear \/ Gloss","offer_id":54920758821197,"sku":"127667537553-500ml-Clear-Gloss","price":15.99,"currency_code":"GBP","in_stock":true},{"title":"500ml \/ Clear \/ Matt","offer_id":54920758853965,"sku":"127667537553-500ml-Clear-Matt","price":15.99,"currency_code":"GBP","in_stock":true},{"title":"500ml \/ Blue \/ Gloss","offer_id":54920758886733,"sku":"127667537553-500ml-Blue-Gloss","price":15.99,"currency_code":"GBP","in_stock":true},{"title":"500ml \/ Blue \/ Matt","offer_id":54920758919501,"sku":"127667537553-500ml-Blue-Matt","price":15.99,"currency_code":"GBP","in_stock":true},{"title":"2lt \/ Clear \/ Gloss","offer_id":54920758952269,"sku":"127667537553-2lt-Clear-Gloss","price":29.99,"currency_code":"GBP","in_stock":true},{"title":"2lt \/ Clear \/ Matt","offer_id":54920758985037,"sku":"127667537553-2lt-Clear-Matt","price":29.99,"currency_code":"GBP","in_stock":true},{"title":"2lt \/ Blue \/ Gloss","offer_id":54920759017805,"sku":"127667537553-2lt-Blue-Gloss","price":29.99,"currency_code":"GBP","in_stock":true},{"title":"2lt \/ Blue \/ Matt","offer_id":54920759050573,"sku":"127667537553-2lt-Blue-Matt","price":29.99,"currency_code":"GBP","in_stock":true},{"title":"5lt \/ Clear \/ Gloss","offer_id":54920759083341,"sku":"127667537553-5lt-Clear-Gloss","price":44.99,"currency_code":"GBP","in_stock":true},{"title":"5lt \/ Clear \/ Matt","offer_id":54920759116109,"sku":"127667537553-5lt-Clear-Matt","price":44.99,"currency_code":"GBP","in_stock":true},{"title":"5lt \/ Blue \/ Gloss","offer_id":54920759148877,"sku":"127667537553-5lt-Blue-Gloss","price":44.99,"currency_code":"GBP","in_stock":true},{"title":"5lt \/ Blue \/ Matt","offer_id":54920759181645,"sku":"127667537553-5lt-Blue-Matt","price":44.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/6924\/0397\/files\/s-l1600_b62cbb1d-f616-44a8-be88-c0e0e6f58459.webp?v=1790760776","url":"https:\/\/carbusonic.co.uk\/products\/carbusonic-pva-release-agent-grp-automotive-mould-release-gelcoat-prep","provider":"Carbusonic","version":"1.0","type":"link"}