Vitrail: How to lighten Vitrail colours?
Use the Vitrail lightener: it lightens colours without diminishing their quality, or thinning them.

Vitrail: How should the creation be dried?
The object must be kept, preferably in a dust-free and dry environment during the 6-8 hours required for drying.

With which other products can Vitrail colours be used?
Play the opposition between transparency and opacity, using the Vitrail and Cernes Relief colours, the Ceramic and Vitrail opal colours together.

Vitrail: What is the bath technique?
This simple and fun technique allows mottling to be carried out. Pour a few drops of different Vitrail colours into a bowl full of water. The drops fuse upon contact with water and produce amazing effects. Then transfer the colour by applying an acetate sheet or the object of your choice on the coloured surface. Once the colour is deposited on the surface, remove it immediately.

Vitrail: Should I bake the decorated object once dry?
Absolutely not! Vitrail colours are not baked. Once dry, they exhibit good hardness and are resistant to gentle washing with cold water without soaking, as well as to glass cleaners.

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

Vitrail: How do you thin the paint if it seems too thick?
Add a small quantity of Vitrail thinner or odourless mineral spirits and stir thoroughly.

Vitrail: Is the application of Vitrail colours carried out vertically or horizontally?
In order to apply our Vitrail product, we recommend using a horizontal surface. The product is actually very runny and horizontal application allows you to apply a thicker layer thus allowing for a greater depth of colour and no risk of dripping.
Vertical application is also possible. The best thing to do is to cut the plexiglas to the size of your windows to work with the Vitrail (stained-glass) colours horizontally on your table. After drying, place the plexiglas against your window on the inside, and then stick it onto the frame of your window. Putting the decoration between the glass and plexiglas is the best thing to do as the effect is superb. If you worked with the cerne relief, it will crush a little and give a nice effect (lead tape hue).

What is the durability of applying Vitrail to a bathroom mirror?
We do not recommend the use of our Vitrail paint in damp rooms such as bathrooms.
We cannot guarantee you great durability in this case, the film may gradually lose its shine.

Vitrail: What should I do with a varnish applied on crimped stained-glass?
You should strip it all and start again.
Wait until the Vitrail is dry before painting with lightener (

Vitrail: Can you apply it to incandescent light bulbs?

Vitrail: Can you use the VITREA 160 instead of CERNE RELIEF?
No, the Vitrea 160 cerne must be baked.

Vitrail: How much matte medium should I add to get a nice matte effect?
The optimum effect is achieved with a 50/50 blend but the shade will be less concentrated.

Vitrail : What's the size of the lead strip?
2 times 3 mm in width, 10 m in length.

Vitrail : Can the lead strip be used with Vitrea 160?
Yes: The lead and adhesive are resistant to baking for 40 minutes at 160 °C and at least 2 washing cycles in the dishwasher.

How should the paint be thinned if it seems too thick?
Add a little odourless mineral spirit and stir thoroughly.

Vitrail: How do you prepare the surface to be painted?
Carefully degrease the surface to be painted with soapy water or alcohol.

Vitrail: After applying the Cerne Relief outliners, how long do you wait before applying Vitrail colours?
It is better to allow the Cerne Relief dry at least 30 minutes prior to applying the Vitrail colours.

Vitrail: How do you prevent the colours from running?
In the case of a rounded object, work on the most horizontal part. Let dry a few minutes, turn the object and repeat. For vertical surfaces, add Vitrail No-Drip Medium to the paint to increase adherence and prevent the colours from dripping down the surface.

Vitrail: How do you correct a mistake?
If the colour is fresh, use a cotton swab soaked in odourless mineral spirit to remove the Vitrail colours and simply use water to remove the Cerne Relief.

Vitrail: How to get a regular line with Cerne Relief?
Before starting, always wipe excess paint that comes out of the tube. When applying, use the tube like a pencil and be sure to apply an even pressure.