CARPRO CQUARTZ UK 4.0 | Ceramic Coating

A ceramic coating that leaves paint glossier and slicker, holds up better against water spotting, and protects for up to 3 years.

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About CARPRO CQUARTZ UK 4.0

CARPRO's fourth-generation UK coating, reworked to be easier to apply and tougher on water spots.

Most coatings that go wrong don't fail because of the product. They fail on timing. Wipe too early and it smears. Leave it too long and you're chasing high spots under the garage lights.

UK 4.0 is the fourth generation of CARPRO's CQUARTZ UK. CARPRO reformulated it with a new blend of hybrid synthetic polymers, and they slowed the drying down on purpose. You now get a 7 to 10 minute flash before you buff, which gives you real breathing room on a warm day or a big panel. The result? Far less chance of leaving a high spot behind.

You also get more out of the finish. UK 4.0 is glossier and slicker than earlier UK versions, it resists water spotting better, and it's rated for up to 3 years of protection. The water spotting is the one Aussies will notice, with hard water, sprinklers and summer rain all doing their damage. It's an easy ceramic coating to get right if it's your first, and quick enough for detailers doing it every week. If you want more chemical resistance for a car that sees harsher washes, CQUARTZ SiC is better suited.

Prep is what makes it last. Decontaminate with an iron remover, CARPRO TarX and clay, then wipe down with CARPRO Eraser so the coating bonds to bare paint. Buff off with a short-nap towel like the CARPRO 2 Face, and finish with a plush cloth like the Aquatouch ACE Heavyweight. Once it's on, a hit of CARPRO Release after 3 hours protects it if it rains. Keep it topped up with a spray coating such as Reload 2.0.

If UK 3.0 was already your go-to, UK 4.0 is the easy upgrade.

Buy it with
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Aquatouch ACE Heavyweight | 400GSM Pearl Weave Microfibre Cloth 24pkHeavyweight 400GSM pearl weave microfiber cloth for coating levelli... $35.96$44.95
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Specifications
  • Durability: Up to 3 years
  • Formula: Hybrid synthetic polymer blend
  • Flash time: 7 to 10 minutes
  • Full hardness: 7 days
  • Sizes: 30mL Kit, 50mL Kit, 100mL Bottle Only
Directions
  1. Wash the car, then decontaminate with an iron remover, TarX and clay.
  2. Polish to remove any defects, if needed.
  3. Wipe down with Eraser. The surface must be cool, dry and silicone-free.
  4. Wrap the applicator block in a suede and pour a line of UK 4.0 onto it.
  5. Spread it in a cross-hatch pattern over a section about 60 x 60cm, leaving a uniform film.
  6. Let it flash for 7 to 10 minutes.
  7. Buff gently in circles with a short-nap microfibre like the 2 Face.
  8. Do a final wipe with a plush microfibre to remove any residue.
  9. Keep coated areas free of standing water for 24 hours. Remove any water straight away.
  10. Apply Release after 3 hours to protect against rain.
  11. For extra layers, wait 1 hour above 20°C, or 2 hours below 20°C.
  12. Full hardness and chemical resistance come after 7 days.
Safety
  • Work in a ventilated area and wear gloves and a respirator mask.
  • Test on an inconspicuous area first.
  • Keep away from fire and heat.
  • Keep out of reach of children.
What's in the Box

30mL Kit and 50mL Kit

  • CQUARTZ UK 4.0 bottle
  • Applicator block
  • 5 suede applicator cloths

100mL Bottle Only

  • CQUARTZ UK 4.0 bottle
Shipping & returns

Free shipping over $150 (excludes Dangerous Goods and Bulky Items). Dispatched same day for orders before 2pm. 30-day returns on unopened products. Learn more ›

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Glossier & Slicker

A new hybrid polymer blend leaves a deeper gloss and a slicker feel than earlier UK versions.

Tougher on Water Spots

Better water spot resistance, which matters with hard water, sprinklers and summer rain.

Up to 3 Years

Rated by CARPRO for up to 3 years of protection with proper prep and maintenance.

Rain? Use Release

Apply CARPRO Release 3 hours after coating and the fresh layer is protected if the weather turns.

DurabilityUp to 3 years
Flash Time7-10 min
Layer Interval1-2 hrs
Water-Free24 hrs
Full Cure7 days
The New Generation of CQuartz

UK4 Gives you higher levels of gloss, slickness and durability. Made to be easier for the DIY'er, but further bridging the gap to professional grade coatings.

Common questions

Is UK 4.0 right for me?
If you want a proper ceramic coating that's forgiving to apply, yes. The 7 to 10 minute flash gives first-timers room to work without rushing, and it's quick enough for detailers coating cars every week. If chemical resistance is your priority, CQUARTZ SiC is better suited.
What's changed from UK 3.0?
CARPRO reformulated UK 4.0 with a new hybrid polymer blend. It's glossier and slicker, resists water spotting better, and is rated for up to 3 years. They also slowed the drying time, so you get a longer, more forgiving window before buffing off.
Do I need to polish before coating?
Only if there are defects you want gone. The coating locks in whatever's under it, so swirls and scratches stay visible. If the paint's already in good shape, a thorough decon and an Eraser wipe-down is enough.
How do I look after it?
Wash with a pH neutral car wash and avoid harsh chemicals for the first 7 days while it fully hardens. After that, a silica spray coating like Reload 2.0 every few months tops up the slickness and beading.

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