Soft99 H-9 Dual Layer Glass Coat

An ultra-hard Japanese glass coating that builds two different glass layers on the clear coat to reach a 9H pencil hardness — Soft99's hardest consumer coating. The base coat (primer) bonds tightly to the paint and lays down the hard glass film; the top coat adds the extra-hydrophobic finish that drives the water repellency and deep, wet-look gloss.

Because the cured film is glass-based rather than a soft wax or sealant, it doesn't soften in summer heat, so airborne dirt, brake dust and traffic grime can't bed into it the way they do on a wax. That means easier washing and a finish that stays slick and glossy for far longer. Soft99 rates durability at up to 5 years based on field and accelerated weather testing to Japanese Industrial Standards (JIS); real-world life depends on prep and maintenance.

The chemistry. A silicon-based (silica glass) coating carried in a petroleum solvent — not a fluorine/PTFE coating like the Fusso range. It's the two-stage glass build, primer plus top coat, that separates it from a single-layer sealant and gives it the hardness and longevity.

What's in the kit. Primer (base coat) 100ml, Top Coat 100ml, sponge applicators with buff ×2, application cloths ×2, and gloves ×2 — enough to coat a full vehicle, applied panel-by-panel.

Before you coat. Wash, decontaminate (de-iron), polish and panel-wipe the paint first. Work one panel at a time, keep the body cool, and leave it to cure in a dry place for around 12 hours, away from water or rain.