Creative leisure : the Q&A Painting on Glass

Vitrail: How do you lighten Vitrail colours?
Use the Vitrail Lightening Medium to create lighter colours without reducing the quality of the colour, or making it more fluid.

Vitrail: How should I dry the finished object?
The object must be kept in a dry, dust free environment for the 6-8 hours required for drying.

Vitrail: What other products can be used with Vitrail colours?
Play the opposition between transparent and opaque colours by using Vitrail colours with the Ceramic colours and Cerne Relief Outliners. Also create amazing effects with the NEW Fantasy paint ranges of Prisme and Moon.

Vitrail: What is the bath technique?
This simple and funny technique allows for marbled effects. Pour a few drops of different Vitrail colours into a container of water. The drops fuse upon contact with water and give amazing effects. Then transfer the colour by dipping your object into the water to transfer the colors onto the piece.

Vitrail: Should I bake the decorated object once dry?
Absolutely not! Vitrail colours are not baked! Once dry, they become hard and enamel like and are resistant to hand washing in cold water without soaking, and to window cleaners.

Vitrail: Can the decorated objects be placed in contact with food?
No, only surfaces not intended for food contact may 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 cerne relief, it will flatten a little and give a nice effect (imitation lead strip).

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 (2.4.1.1.4.3)

Vitrail: Can you apply it to incandescent light bulbs?
Yes

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.

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 wet, use a cotton swab dipped in odourless mineral spirits to remove the Vitrail colours. If dry, scrape the colour off with a razor blade. Cerne Relief Outliners may be removed with water.

Vitrail: How can you get a straight line with the Cerne Relief Outliners?
Before starting, always wipe the excess paint from the nozzle of the tube. When applying, use the tube like a pencil and gently squeeze the tube to apply even pressure.

Vitrail Auxiliaries: Can objects decorated with Vitrail be cleaned with rubbing alcohol?
Rubbing alcohol is not recommended for the maintenance of objects decorated with Vitrail colours. The colours are resistant to conventional glass cleaners and hand washing without soaking.

Auxiliaires Vitrail: What is the bath technique?
This simple and funny technique allows for marbled effects. Pour a few drops of different Vitrail colours into a container of water. The drops fuse upon contact with water and give amazing effects. Then transfer the colour by dipping your object into the water to transfer the colors onto the piece.

Auxiliaires Vitrail: Should I bake the decorated object once dry?
Absolutely not! Vitrail colours are not baked! Once dry, they become hard and enamel like and are resistant to hand washing in cold water without soaking, and to window cleaners.

Auxiliaires Vitrail: Can the decorated objects be placed in contact with food?
No, only surfaces not intended for food contact may be decorated.

Auxiliaires 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.

Auxiliaires 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.

Auxiliaires 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.

Auxiliaires Vitrail: How do you correct a mistake?
If the colour is wet, use a cotton swab dipped in odourless mineral spirits to remove the Vitrail colours. If dry, scrape the colour off with a razor blade. Cerne Relief Outliners may be removed with water.

Auxiliaires Vitrail: How can you get a straight line with the Cerne Relief Outliners?
Before starting, always wipe the excess paint from the nozzle of the tube. When applying, use the tube like a pencil and gently squeeze the tube to apply even pressure.

Vitrail auxiliaries; How do you lighten Vitrail colours?
Use the Vitrail Lightening Medium to create lighter colours without reducing the quality of the colour, or making it more fluid.

Vitrail auxiliaries: How should I dry the finished object?
The object must be kept in a dry, dust free environment for the 6-8 hours required for drying.

Auxiliaires Vitrail: What other products can be used with Vitrail colours?
Play the opposition between transparent and opaque colours by using Vitrail colours with the Ceramic colours and Cerne Relief Outliners. Also create amazing effects with the NEW Fantasy paint ranges of Prisme and Moon.

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

Auxiliaires 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.

Auxiliaires 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.

Auxiliaires Vitrail: How do you correct a mistake?
If the colour is wet, use a cotton swab dipped in odourless mineral spirits to remove the Vitrail colours. If dry, scrape the colour off with a razor blade. Cerne Relief Outliners may be removed with water.

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

Vitrea 160: How to prepare the surface to be painted?
Very simply, just degrease the surface to be decorated with alcohol or soapy water.

Vitrea 160: When applying, frosted colours have a shiny appearance, is this normal?
Yes, these colours only show their frosted appearance once dry. Always make sure to stir the colours in the bottles and shake well the markers before applying.

Vitrea 160: How to correct a mistake?
Before firing, the Vitrea 160 colours are removable with water or alcohol: Use a cotton swab to correct a detail or soak your object for a few minutes to remove everything.

Vitrea 160: Can I apply layers?
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, cook it, then apply the second coat.

Vitrea 160: On what surfaces can you paint with Vitrea 160?
This product is particularly well suited for painting on glass or crystal. Nevertheless you can obtain interesting effects with other types of surfaces that can withstand a temperature of 160°C.

Vitrea 160: At first use, how to get the colour in the tip of the marker?
Stir thoroughly, then count 30-60 seconds while regularly pressing the tip to start the marker.

Vitrea 160: How to lighten a colour?
By mixing either the shiny or matte medium with the colours you want to lighten.

Vitrea 160: How to thin colours?
Thin the Vitrea 160 colours with the Vitrea 160 thinner to obtain the desired consistency. Do not use water which would weaken the resistance properties of the colours.

Vitrea 160: Can the mediums be used on their onw?
Yes. The gloss medium, almost invisible when cooked, is ideal for producing inclusions.
The frosted medium allows achieving 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: Why is it that the colours were altered in the dishwasher?
Several possible reasons: the surface wasn’t degreased properly; the colours were diluted with water or the temperature settings and cooking time were not met.

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

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.

Can the decorated objects be put in contact with food?

No, only surfaces not intended to be put in contact with food must be decorated.

How to prepare the surface to be painted?
Very simply, just degrease the surface to be decorated with alcohol or soapy water.

When applying, frosted colours have a shiny appearance, is this normal?
Yes, these colours only show their frosted appearance once dry. Always make sure to stir the colours in the bottles and shake well the markers before applying.

How to correct a mistake?
Before firing, the Vitrea 160 colours are removable with water or alcohol: Use a cotton swab to correct a detail or soak your object for a few minutes to remove everything.

Can I apply layers?
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, cook it, then apply the second coat.

On what surfaces can you paint with Vitrea 160?
This product is particularly well suited for painting on glass or crystal. Nevertheless, you can obtain interesting effects with other types of surfaces that can withstand a temperature of 160°C

At first use, how to get the colour in the tip of the marker?
Stir thoroughly, then count 30-60 seconds while regularly pressing the tip to start the marker.

Why is it that the colours were altered in the dishwasher?
Several possible reasons: the surface wasn’t degreased properly; the colours were diluted with water or the temperature settings and cooking time were not met.

Vitrea 160 auxiliaries: 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.

How to lighten a colour?
By mixing either the shiny or matte medium with the colours you want to lighten.

How to thin colours?
Thin the Vitrea 160 colours with the Vitrea 160 thinner to obtain the desired consistency. Do not use water which would weaken the resistance properties of the colours.

Can the mediums be used on their own?
Yes. The gloss medium, almost invisible when cooked, is ideal for producing inclusions.
The frosted medium allows achieving remarkably similar effects to etched glass.

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