{"product_id":"vasco-prewash-thixotropic-tar-remover-gel","title":"Vasco Prewash Thixotropic Tar Remover Gel","description":"\u003cp\u003eTar and asphalt don't come off in a normal wash. They sit in the bottom quarter of every panel after a resurfaced road or a wet motorway run, and the usual fix is a solvent and a lot of rubbing on paint you have just spent an hour correcting. Vasco Prewash is a thixotropic gel pre-wash and tar remover: it clings where you spray it instead of running down to the sill, so it stays on the contamination long enough to dissolve it without you touching the panel.\u003c\/p\u003e\n\u003ch3\u003eWhy it works\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGel consistency holds on vertical panels rather than running off, so the dwell time is real dwell time\u003c\/li\u003e\n\u003cli\u003eNon-solvent cold degreaser — it works by dwelling, not by aggressive solvent attack\u003c\/li\u003e\n\u003cli\u003eDissolves tar, asphalt, road salt, oil and greasy road film in one application\u003c\/li\u003e\n\u003cli\u003eContactless: spray, leave it, rinse. No mitt, no clay bar, no rubbing tar across clearcoat\u003c\/li\u003e\n\u003cli\u003eUsed neat through a trigger or low-pressure sprayer — no dilution maths\u003c\/li\u003e\n\u003cli\u003eAround two to three cars per litre; the 5L is the working detailer's size\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to use it\u003c\/h3\u003e\n\u003cp\u003eFirst thing, on a dry, cool car, before any water touches it. Lower quarters, sills, behind the arches and the rear bumper are where tar collects. It is the stage before your \u003ca href=\"\/collections\/snow-foam-pre-wash\"\u003esnow foam and pre-wash\u003c\/a\u003e, not a replacement for it — tar first, then foam, then the contact wash.\u003c\/p\u003e\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1L or 5L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePre-wash and contactless tar remover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eForm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThixotropic gel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDilution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUse neat — do not dilute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDwell time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFrom 30 minutes; up to 2 hours on heavy tar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoverage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAround 2–3 cars per litre through a trigger sprayer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH \/ chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot published by Vasco — described as a non-solvent cold degreaser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVasco\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eStraight from us\u003c\/h3\u003e\n\u003cp\u003eThe dwell time is the entire product. Rinse after five minutes and you will wonder what the fuss is about; leave it an hour and the tar comes off in the rinse water. Two things people get wrong: not shaking the bottle, and spraying it onto a wet car. Past a couple of cars a year the 5L is the obvious buy — roughly a third of the per-car cost of the litre.\u003c\/p\u003e\n\u003ch3\u003eWhat it won't do\u003c\/h3\u003e\n\u003cp\u003eIt is not a wash. Vasco Prewash lifts tar and greasy deposits but leaves general road film behind, so it always needs a foam and a contact wash after it. It will not touch bonded iron fallout either — that needs an \u003ca href=\"\/collections\/iron-fallout-removers\"\u003eiron fallout remover\u003c\/a\u003e at the next stage.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow long do I leave Vasco Prewash on the paint?\u003c\/strong\u003e\u003cbr\u003eAt least 30 minutes, and 45 minutes to 2 hours on heavy tar. Do not let it dry on the panel — if it starts to dry, re-mist the area and give it a few more minutes before rinsing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I dilute Vasco Prewash?\u003c\/strong\u003e\u003cbr\u003eNo. Vasco Prewash is used neat straight from the bottle through a trigger or a low-pressure sprayer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs Vasco Prewash safe on ceramic coatings and wax?\u003c\/strong\u003e\u003cbr\u003eDetailers use Vasco Prewash on coated cars, and it is a non-solvent product rather than an aggressive solvent tar remover. Rinse thoroughly and re-check your protection after any heavy decontamination. Keep it off rubber seals and out of direct sunlight.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to wash the car first?\u003c\/strong\u003e\u003cbr\u003eNo — that is the point of it. Vasco Prewash goes onto a dry, cool car before the wash, so the tar is gone before a mitt ever touches the paint.\u003c\/p\u003e\n\u003cp\u003eBrowse the full \u003ca href=\"\/collections\/vasco\"\u003eVasco range\u003c\/a\u003e at Blade Performance.\u003c\/p\u003e","brand":"Vasco","offers":[{"title":"1L","offer_id":56206330167681,"sku":"VAS-PRE-1L","price":15.99,"currency_code":"GBP","in_stock":true},{"title":"5L","offer_id":56206330265985,"sku":"VAS-PRE-5L","price":49.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/2316\/1362\/files\/vasco-prewash-1l-light-4x5.png?v=1788271619","url":"https:\/\/www.bladeperformance.shop\/products\/vasco-prewash-thixotropic-tar-remover-gel","provider":"Blade Performance ","version":"1.0","type":"link"}