PAINTING ON GLASS: VITREA 160 AND VITRAIL : the Q&A VITREA 160

Vitrea 160 : Can the decorated objects be put in contact with food?
No, only surfaces not intended to come into contact with food should be decorated.

Vitrea 160: How do I prepare the surface to be painted?

Very simply, degrease the surface to be decorated using alcohol or soapy water.

Vitrea 160: When I apply the frosted colours, they have a shiny appearance. Is this normal?

Yes, these colours exhibit their frosted appearance once dry. Moreover, always stir the bottled colours and shake well before using the markers.

Vitrea 160: How do i correct a mistake?
Before baking, the Vitrea 160 colours are soluble to water and alcohol: use a cotton swab to correct a detail or soak your object for a few minutes to erase everything.

Vitrea 160: Can I apply multiple coats?
Yes, there are two ways to proceed. Apply the second layer directly, without waiting until the first is dry. You can also apply the first layer, , bake it (10 min at 160° C), then apply the second.

Vitrea 160: On what surfaces can you paint with Vitrea 160?
This product is particularly well-suited to painting on glass or crystal. You will, nevertheless, obtain interesting effects with other types of surfaces that can be heated at a temperature of 160° C.

Vitrea 160: On the first use, how do I make the colour come down the felt tip?

Shake briskly, then count 30 to 60 seconds while continually pressing the tip to prime it

Vitrea 160: How to i lighten a colour?
You can use the P150 glossy medium whose formulation has been revised so that it can also be used with the V160 colours.

Vitrea 160: How can I water down a colour?
Make the Vitrea 160 colours more fluid by diluting with the Vitrea 160 thinner until the desired consistency is reached. Do not use water, as this can diminish the resistance of the colours.

Vitrea 160: Can I use the media on their own?

Yes. The glossy medium, which is almost invisible when cooked, is ideal for creating inclusions.
The matte medium allows for remarkably similar effects to etched glass.

Vitrea 160: Why did the colours bubble when cooked?
You probably did not let dry long enough before baking. The chosen surface was perhaps too porous.

Vitrea 160: The colours did not withstand the effects of the dishwasher. Why?

There are several possible reasons: the surface was poorly degreased before application, the colours were diluted with water or the temperature and cooking time instructions were not followed.

Vitrea 160 : Should the object immediately be placed in the oven once it is well heated?
No, it is even advisable to insert the object in the oven when it is still cold, to avoid thermal shock. Conversely, once finished baking, allow the oven to cool before removing the object.


Can the glass withstand a temperature of 160 °C?
Place the piece in a cold oven, when the oven temperature reaches 160 °C (325 °F), cook it for 40 minutes, then allow the piece to cool in the oven. This limits any thermal shocks that could cause the glass to break.

Is it possible to reduce the 24-hour drying time before cooking?
It is important to let the paint dry for 24 hours before cooking. If the paint film is not totally dry, the water contained in the film will boil on cooking and create defects such as bubbles or blisters on the surface.

Can V160 colours be used with an airbrush?
Vitrea 160 paints can be used with an airbrush. To do so, thin the colours with Vitrea 160 thinner (ref 113050) until you achieve the desired consistency. Do not use water; it will reduce the resistance of the colours to washing.

I mixed P150 and V160 on the same piece; at what temperature should I bake it?
If you have mixed the 2 products P150 and V160 on the same piece, fire it at the highest temperature and the longest time (i.e. 160 °C for 40 min), for optimal properties.

What is the consumption of a 20 ml tube of Relief?

A line of 15 meters.

What is the consumption of a V160 marker?

150 metre line.

Why have the colours bubbled when baked?
You probably did not leave the product long enough to dry before baking.