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Crystal Serum Light is Gtechniq's prosumer ceramic paint coating, a toned-down version of the detailer-only Crystal Serum. It lays down a hard, high-gloss layer rated for up to five years, with pH 2–12 chemical resistance and temperature tolerance from -40°C to 250°C. It suits confident DIY detailers and first-timers who want long-term protection without a professional installer. Against spray sealants and waxes it lasts far longer and resists chemicals better, but it is fussier to apply and unforgiving of mistakes.
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In stockSold by DETAILINGHQReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
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Lowest price we've seen: $54.95 on Nov 11 at eBay. Tracked across 4 stores since Nov 11.
Owners and detailers rate Crystal Serum Light highly for gloss, slickness and longevity when applied correctly. Many note it is easy to level compared with heavier coatings, but warn that poor prep or slow buffing leaves high spots.
Gtechniq Crystal Serum Light is a liquid ceramic coating for a vehicle's painted surfaces. It protects the paint and gives a high-gloss finish.
The coating resists swirl marks and withstands chemicals from pH 2 to 12. That includes strong wash chemicals, bird droppings, tree sap and road salt. It is rated for up to five years of durability and carries a 5-year guarantee. Temperature resistance runs from -40°C to +250°C.
Apply it at 5°C to 25°C using the included application pad and pipette, and check the surface for residue afterward. Wait about 2 hours before overcoating. Curing takes 12 hours indoors. It is used by both professionals and first-time users, including in detailing shops.
