Fast base-topcoat for chrome plating

The chrome plating base* is a new two-component "ceramic" type clearcoat manufactured by Stardust, with two particularly important properties:

- Very high and fast hardening

- Very high gloss

This makes it possible to use chrome paint in the best conditions, both as an undercoat and as a clearcoat:

By greatly reducing the drying time to achieve maximum hardness (7–14 days for conventional clearcoats compared with 1–2 days for the ST8900X clearcoat).

By creating a very hard and glossy background that allows the sprayed chrome effect to appear perfectly.

What you need to know :

The mirror effect depends on the hardness of the background: the harder the background, the sharper the mirror effect. Conversely, the softer the background, the more the chrome effect becomes blurred.

Chrome effect paint is semi-transparent and can be applied over any background colour. A black background is generally recommended. However, grey or white backgrounds (such as a primer) are also perfectly suitable. The advantage of black is that it can be clearcoated more easily.

Appearance : colourless / transparent / glossy

Type : solvent-based

Use of the clearcoat / base for chrome

- The product can only be used on primed materials prepared according to the rules of paintwork.

- The product can be used as an undercoat (hard primer) and also as a clearcoat.

- The product is suitable for sprayable chrome paint, as well as for silver plating (chemical chrome).

- Suitable for small or large parts.

- Excellent resistance to UV and to temperatures up to 250 °C.

This base for chrome is included in the complete sprayable mirror paint kit as both undercoat and finishing clearcoat.

Mixing :

Mix by weight exactly 1 part ST8900X clearcoat with 1 part H440 hardener. No dilution.

Detail of the offers :

Kit 500 ml: 250 ml ST8900X clearcoat + 250 ml H440 hardener

Kit 1 L: 500 ml ST8900X clearcoat + 500 ml H440 hardener

Kit 2 L: 1 L ST8900X clearcoat + 1 L H440 hardener

Mixture pot life: 20 min

Application :

Apply a single glossy coat (approx. 25µm dry).

Drying and hardening :

Although excellent hardness is achieved after only 2 hours, maximum hardness and the best chrome effect are obtained after 24 to 48 hours.

IR or oven drying possible at 60 °C or 80 °C.

Clearcoating:

When applying a clearcoat over chrome paint, avoid "wetting" and "soaking" the mirror surface. Apply 4 light veils as dry as possible to fix the mirror effect, with 2 minutes between each veil, then finish with 2 full glossy coats.

Tinting:

The base/clearcoat allows the mirror effect to be tinted to obtain coloured chrome effects.

To do this, simply mix 2 to 6% "Candy" transparent dyes into the topcoat, or 1–3% into the topcoat/hardener mixture.