Special Lexan clearcoat and RC models - acrylic gloss or matte

HKR Gloss or Matte Clearcoat is used specifically for radio modelling on Lexan bodies.

It is an innovative and unique clearcoat with a water-based aliphatic acrylic polyurethane formula that is odorless and contains less than 3% solvents.

This HKR Lexan clearcoat shows exceptional adhesion performance on Lexan. It also adheres to a variety of soft substrates and metals (iron and aluminum).

It is also a particularly tough, impact resistant clearcoat with good flexibility.

It is an excellent carrier clearcoat for mixing colors, pearls or flakes.

Finally, HKR clearcoat provides excellent color protection against UV rays.

Use :

Its fluid texture allows for use with a spray gun or airbrush

It can be applied in 1 or 2 coats on or under the bodies of radio-controlled vehicles made of Lexan.

It is mainly applied on RC bodies to restore shine and remove micro-scratches

It is used by RC painters and decorators to create a matte finish on glossy original bodies.

HKR clearcoat is also perfect for incorporating any kind of pearl pigments or flakes or hydro candy concentrate, and in this case it is applied as a first coat, under the bodywork

HKR clearcoat is not suitable for permanent immersion. For models immersed in water, we recommend our 2-component clearcoats.

Mixing and adjusting

Airbrush nozzle >=0,3mm

Gun nozzle 0,8-1,4mm

Pressure : 2.5 bar

Dilution : possible at 5-10% with distilled water or Hikari RC thinner. Do not exceed this level of dilution, as it may affect the adhesion and lengthen the drying time.

Application

On a sanded or unsanded, degreased and dry surface

Apply one to two coats, 0.3 to 0.5 mm thick when wet

Allow 10-15 minutes drying time at 20°C before applying the second coat.

The maximum recoat time is 2 days without sanding, therefore, if in doubt, extend the drying time between coats

Avoid the application of too thin coats : Risk of loss of gloss and loss of adhesion.

Avoid applying too thick coats : Risk of milky effect and dripping.

Drying

Do not bake or oven dry, as this may result in reduced adhesion

It is possible to accelerate the drying process with a moderate source of hot air

Do not sand for at least 6 hours

HKR clearcoat can be polished after 48 hours

On difficult substrates, wait 48 hours to obtain maximum adhesion properties.

Adhesive masking (tapes)

Adhesive application possible from 1 hour

Without sanding until 48h

After 48h, the HKR clearcoat has hardened, and it is advisable to make a light sanding with P600 before painting.

Glossiness :

HKR glossy : 75-85

HKR matte: 4°.

HKR gloss and matte clearcoats are miscible and allow to obtain different levels of gloss, after mixing.