Ceramic 2K car clearcoat CerastarX-ST8900X

Best ceramic varnish for cars

The CERASTAR® automotive top coat is called 'ceramic top coat' : this particular product shows amazing abrasion resistance thanks to the use of nanoparticles in its composition.

CERASTAR® is a special topcoat and innovative clearcoat manufactured by STARDUSTCOLORS.

Our ceramic coating options:

• Extra hard versions (ST8900X)

Kit 1 Liter (0.5L Varnish + 0.5L Hardener H440)

Kit 2 Liters (1L Varnish + 1L Hardener H440)

kit 10L (5 litres of varnish + 5 litres of hardener)

Specifications :

They are very beautiful, thick and levelling, glossy and easy to paint.

Ceramic varnish CERASTAR X or F (flexible) has a higher level of hardness and dries very quickly.

It is a solvent-based varnish made from non-acrylic resins, which cures by polymerisation with its hardener.

Produced using a different chemical process, these highly fluid varnishes harden very quickly and form dry, glossy, ultra-hard layers

They offer a higher level of resistance than all conventional bodywork varnishes.

It is very easy to clean. It resists better than other HS or UHS varnishes, to micro scratches / scraping / mechanical friction and also to the aggression of various chemical agents.

The exceptional characteristics of CERASTAR® clearcoat:

This high quality top coat is designed for cars and motorbikes, is easy to apply, super hard, and provides maximum gloss finish. Industry and building companies also use it for pieces subjected to severe rubbing or often exposed to chemical products (detergents, petrol...)
We can note a resistance rate more than 40% higher than with standard top coats . Some car companies (luxury brands) have chosen this technology for the complete coating and outstanding protection of their latest models.

CERASTAR® ceramic top coat is completely compatible with waterborne or solvent based auto body paints. The hardener (included) allows it to whether being used for spot repairs or complete finishings.

Mixture 1 : 1 by weight

100 parts ST8900-X clearcoat

+ 100 parts hardener (H440*)

0 thinning

Spray gun : Standard or HVLP 1,2 - 1,4 mm

Mode of application : Apply two coats with 10 minutes interval.

Drying :

VERSION X

Dry to the touch 20 minutes.

Commissioning 60 min

Optimal hardness after 48 hours

Surface preparation: Sanding with 240–320 grit sandpaper

Mixing, application and curing of the ceramic varnish

CERASTAR ST8900X ceramic varnish is mixed in a 1:1 ratio by weight (one part varnish to one part hardener) and without dilution (very low viscosity)

The pot life of the mixture is very short: 25 minutes maximum at 20°C.

The ST8900x ceramic clearcoat is extremely hard and dries very quickly (45 mins through)

at room temperature (20°C) without curing.

IR curing is not necessary given the rapid curing rate. Observe the 10-minute ‘flash-off’ time if curing is required.

Important notes: a reduction in performance is observed when used and dried at low temperatures, and also when the mixture is used some time after mixing.

The hardening of the varnish can be extremely rapid, so it is advisable, when painting complete cars, not to work at temperatures above 25°or 30°C, and it may be advisable to mix it in batches. . 

Ceramic clearcoat for rims

CERASTAR does not adhere directly to bare metal.

It is possible to apply the ceramic clearcoat to a raw metal rim by applying, 2 minutes before, a coat of transparent primer for metals SILAX P760.

Discover the LinaQuartz® nano-ceramic liquid glass coating. This liquid product is not a varnish. it is applied in addition, above the glossy and dry clearcoat.

Can we sand or polish "ceramic" clearcoats?

Yes, in the same way as conventional body paint.

Is it possible to apply a ceramic coating to a large vehicle, given how quickly it cures?

Yes, provided you allow 10 to 15 minutes between coats and prepare a fresh batch of the mixture for each coat.

Please note that the X version cannot be polished.

Cerastar® is a registered trademark of StardustColors

* the Persoz hardness measures the resistance to scratching using a pendulum that scratches the surface. the greater the measurement, the greater the hardness.

**The Buccholz hardness measures the resistance to an impact by perforation. The closer the measurement is to 0, the greater the hardness.

Product (hardener) containing isocyanates with a free monomer content of less than 0.1%. (REACH Regulation (EU) 2020/1149)