GYEON Q² AntiFog Anti-Fog Sealant (Interior) 120ml

Permanently clear glass with GYEON Q² AntiFog anti-fog sealant

What is GYEON Q² AntiFog? GYEON Q² AntiFog is an SiO₂-based anti-fog sealant for interior car glass that stops condensation forming for good and keeps your windows clear, fog-free and safe – even when it's cold outside and warm inside.

Fogged-up windows are more than an annoyance – they're a genuine safety problem. Condensation on the windscreen costs you seconds, and seconds matter in traffic. GYEON Q² AntiFog fixes that for good: the silicon-based ceramic sealant lays a molecular protective layer on the inner glass surface that stops water vapour turning into droplets. You feel the difference straight away – and it holds for months.

• Stops fogging for good – not just for a day or two. Off-the-shelf anti-fog sprays and wipes fade after a few days. GYEON Q² AntiFog builds a lasting sealing layer instead. The SiO₂ bond works into the glass surface and changes how it wets from the ground up – condensation gets no grip and can't settle as visible fog.
• Safer driving because your view stays clear. In autumn and winter, when cold air outside meets warm air inside, fog-free glass is what counts. GYEON Q² AntiFog keeps the screen clear even with a big temperature gap – no cranking the blower, no wiping with your sleeve.
• Even, streak-free finish on every interior pane. GYEON Q² AntiFog works on all interior glass – windscreen, side windows, rear screen and mirror glass. The formula flashes off streak-free and leaves no smears to blur your view.

Day-to-day from Detailing1: Lay GYEON Q² AntiFog down on glass that is properly clean and grease-free – fingerprints, oily films and cleaner residue all stop it bonding evenly. Best to prep with GYEON Q²M Glass glass cleaner first and wipe off with a clean microfibre. Then apply GYEON Q² AntiFog thin, let it sit for a moment and buff with a second, dry microfibre.

How GYEON Q² AntiFog stops fogging for good

Fog forms when warm, damp air from inside the car hits cooler glass. The moisture condenses into tiny droplets that scatter light and turn the pane opaque. Plain glass has a natural surface tension that encourages exactly that. GYEON Q² AntiFog changes that property with an SiO₂-based coating that makes the glass hydrophilic (water-friendly): instead of separate droplets, the moisture spreads as a thin, even film you simply can't see and that doesn't get in the way of your view. The effect lasts far longer than classic anti-fog products, because the sealant bonds chemically with the glass – it doesn't just sit on top of it.

How to use it: getting the best out of Q² AntiFog

GYEON Q² AntiFog rewards careful prep. Start by cleaning the inside of the glass thoroughly with a glass cleaner and degreasing it completely – leftovers from your regular interior products, fingerprints or dashboard-dressing overspray all get in the way of proper bonding. Once it's clean, let the glass dry off fully. Then lay Q² AntiFog down thin and even with a clean applicator or microfibre – one thin coat is plenty, less is more here. After a short dwell time (1–3 minutes depending on the ambient temperature) buff it out with a fresh, dry microfibre. Done right, the glass is clear and fog-free immediately. For an even stronger effect you can put a second, thinner pass on after 30–60 minutes.

Where it works: which glass and which vehicles Q² AntiFog suits

GYEON Q² AntiFog suits every interior pane in the car: windscreen (especially when your breath fogs it up fast), side windows, rear screen and mirror. Cars with poor interior ventilation or without air conditioning gain the most – that's where fog turns up most often. Vehicles that live outdoors, like vans and commercial vehicles, also get plenty out of the long-lasting effect. For boat glass and other marine surfaces we'd point you at the specialised products in the GYEON Q²R Marine range. For the outside of the windscreen, though, GYEON Q² View EVO glass sealant is the right call – it's built for the outside, for washer fluid and wiper blades.

Q² AntiFog against the usual anti-fog products

There's no shortage of anti-fog products, from simple glass wipes to supermarket sprays. What sets GYEON Q² AntiFog apart is durability and how it works. Cheap anti-fog stuff usually relies on a temporary silicone-based film that comes off after a few days or the next time you clean. Quick on, quick gone. GYEON Q² AntiFog bonds chemically with the glass and builds a lasting protective layer that holds for weeks to months. It also beats the home remedies – shaving foam, washing-up liquid – hands down: no residue, no safety risk from a blurred view, and an even, streak-free surface. Once you've worked with a proper anti-fog sealant, you won't want to go back to a temporary fix.

Buying advice: who GYEON Q² AntiFog is for

GYEON Q² AntiFog is for you if you want the fogged-window problem solved properly and reliably, without touching it up every morning. It earns its keep in the cold months and in damp regions where fog is a daily nuisance. For detailers and keen enthusiasts it's a sensible addition to any interior job. The combination we'd recommend: clean the glass with GYEON Q²M Glass or Q²M Glass+ first, then lay Q² AntiFog on the inside – and grab Q² View EVO glass sealant for the outside. Glass protected all round that stays clear whatever the weather.