Solvent-based 1K base coats for cars 

Among other types of car paints Stardust offers a complete range of solvent-based car paints, including 1K basecoats.

What is a 1K basecoat ?

First of all, it is a one-component paint : no hardener is needed*.

It is a thin paint, drying at room temperature.

It is not an overcoat : the paint must be quickly varnished, with a topcoat. The latter ensures the protection of the paint.

After drying, the dry film is matt, thin and flexible. It measures from 20 to 30µm

PAE / RFU : ready for use

Unlike polyurethane 2K paints, 1K paints can be applied directly and do not require a hardener.

Of course, they must be thinned. They are too thick in their pure state.

PAE is the name given to the diluted paint that is ready to be sprayed.

Mixing and diluting :

A body thinner is used to extend the paint by 50 to 100%.

What are the advantages of a 1K basecoat ?

It is above all simple and easy to be applied.

The product is fluid, extremely fine and can be applied very nicely in thin layers.

It is difficult to obtain defects with this type of paint.

Drying takes place very quickly by evaporation, during which the paint is perfectly smooth.

At normal temperature (20°C), you can make a series of passes, with an interval of 1 minute maximum.

The « 1K » basecoat does not need hardener, so there is no problem of hardening or time of use.

Another advantage is the unlimited dilution that a « 1K basecoat » offers : It can be diluted to 50, 100 or even more to obtain an ultra-fine product.

The characteristics of 1K basecoats are appreciated with metallic and pearlescent colors : the thinness of the dry film allows the pearl or aluminum flakes to be placed perfectly flat on the surface, creating a smooth and perfect effect. In addition, the almost immediate drying time allows the pearls or metal particles to freeze in their position. This avoids the slippage that can inevitably occur with slow-drying products, such as 2K paints.

Application of a matt base to be recoated or 1K car paint

The product must necessarily be varnished. The application of a matt base or 1K car paint is a two-step process.

Covering time : this is an important point to respect if you want to obtain a good cohesion and adhesion between the 1K paint and its topcoat. It is generally 30 minutes.

The time of de-solvation : It is the time after application, which must be respected, before covering (with a topcoat) to allow the escape of volatile solvents. It is in general a time of 10 min.

The recommended application temperature is 15 to 25°C.

Above this temperature, the recovery and de-solvation times are reduced. Below, these times are lengthened.

What happens if we can't respect the 30 minutes varnishing time after application?

We will have more grip on the paint. So, if you want to apply stickers, make drawings or use stencils and adhesive masks, you must wait 1 hour and sand lightly with P500 to allow the upper coats to adhere.

Hydro

On the site, we do not offer manufacturer's colors in water-soluble automotive version.

We propose on the site, water-based binder to varnish or two-component water-based topcoat. We can also make customized tints according to the main color charts.

Hardening

Did you know that it is possible to harden a one-component paint ? You can add 1 to 5% of any hardener to harden it.

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