Creative leisure : the Q&A Painting on China and Ceramic

Ceramic: Should the surface be prepared before painting?
Yes, degrease smooth surfaces with soapy water or alcohol. Flatten slightly rough surfaces by lightly sanding. Apply the filler undercoat sealer on porous surfaces 24 hours prior to applying the paint.

Ceramic: How do you correct a small mistake?
If the colour is wet, use a cotton swab soaked in Ceramic / Vitrail diluent. If it is dry, gently scrape with a razor blade.

Ceramic: Should I bake the decorated object once finished?
Absolutely not! Ceramic colours do not require baking. Once dry, they form a very hard film. The colours are then resistant to scratching and to hand washing without soaking.

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

Ceramic: Can the decorated objects be placed in contact with food?
No, only decorate surfaces not intended for contact with food. For decorative items only.

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

Ceramic: What other products can I use with Ceramic colours?
Play the opposition between transparency and opacity by using the Ceramic colours with Vitrail colours and Cerne Reliefs. For amazing effects, mix with the Fantasy paint ranges of Prisme and Moon.

Ceramic: What is the bath technique?
This simple and funny technique allows for marbled effects. Pour a few drops of different Ceramic 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.

Porcelaine 150 : Can the decorated objects be put in contact with food?
No, only surfaces not intended for food contact may be decorated.

Porcelaine 150: On which surfaces can you paint with Porcelaine 150?
This product is particularly well suited for painting on china, porcelain, ceramic, but you will get very interesting effects on other materials capable of withstanding a temperature of 300° F (150° C) such as metal, glass ...

Porcelaine 150: How do you prepare the surface to be painted?
Very simply, just degrease the surface with alcohol or soapy water.

Porcelaine 150: Can you paint with Porcelaine 150 on porous surfaces, such as plaster or terra cotta?
Yes, it is possible to paint slightly porous surfaces. After a light sanding, apply the Filler Undercoat sealer. Allow to dry for 24 hours, then apply the colours normally.

Porcelaine 150: How do I correct a mistake?
As long as the object has not been baked, correcting a small error is very simple. Just use water or alcohol: soak a cotton swab for minor repairs or a cloth to remove large areas.

Porcelaine 150: Why did the colours brown when the piece was baked?
The oven temperature was too high: to prevent this, use an oven thermometer to accurately measure the temperature (available in the range of Porcelaine 150 auxiliaries). Or the baking time may have been too long.

Porcelaine 150: How do you make the colours more transparent?
Mix the colour with the Porcelaine 150 Gloss medium, do not exceed 1/3 of medium with 2/3 of colour.

Porcelaine 150: What is the matte medium used for?
Matte medium provides a matte appearance; simply mix with the colour, do not exceed 1/3 of medium with 2/3 of colour.

Porcelaine 150: How do you thin the colours?
Use the Porcelaine 150 thinner. Caution, do not use water, it would undermine the product's properties, including resistance to washing. You may use up to 10% water, without compromising the integrity of the paint.

Porcelaine 150: Why did the colours bubble when cooked?
The paint was not allowed to dry for long enough before baking. Or, the painted surface was perhaps too porous.

Porcelaine 150: Why did the colours change 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.

Porcelaine 150: At first use, how is the colour released to the tip of the marker?
Shake the marker thoroughly, then count 30-60 seconds while applying constant pressure to the tip to start the marker.

Porcelaine 150 : Can you re-fire a piece that has already been fired?
We generally recommend only firing our Porcelain 150 once. After being fired several times, the colours can turn brown. A second firing has no significant effect many colours, but if light colours such as opaline blue are used, the colour can turn green.

Porcelaine 150 : Can the range's metallic colours be put in the microwave?
The colours do not contain metal particles and they can be used on pieces put in a microwave after firing for 35 min at 150 °C.

Porcelaine 150 : 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.

Porcelaine 150 : Can P150 be applied to a mirror?
Yes, a glass mirror withstands 35 minutes at 150 °C.

Porcelaine 150 : Are P150 markers firing-free?
P150 markers should be baked for excellent dishwasher resistance.

Porcelaine 150 : What is the consumption of a 20 ml tube of outliner?
A line of 15 meters.

Porcelaine 150 : What is the consumption of a P150 marker?
150 metre line.

Porcelaine 150 : How much sealant undercoat must be applied to a porous surface?
The undercoating pore-filler layer to be applied depends on the porosity of the surface. Apply a thin or thick layer depending on the surface, but usually just one coat is enough. After you apply it, wait 30 minutes for the undercoat to dry before colouring.

Porcelaine 150 : 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.

Porcelaine 150 : 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.

Porcelaine 150 Auxiliaries: How much thinner should be added to maintain the brightness of the Porcelaine 150 colours while thinning them?
A few drops of thinner are sufficient in general. It depends on the desired viscosity. The brilliance of the colours will not be altered by the dilution of the Porcelaine 150 colours, but the higher the proportion of medium is, the more transparent the colour will be. We recommend that you do not exceed a 50/50 mix.

Porcelaine 150 Auxiliaries: How much Filler Undercoat sealer should you apply on a porous surface?
The Filler undercoat layer depends on the porosity of the surface to be painted. Apply a thin or generous layer depending on the surface, but generally one layer is sufficient. After application, wait 30 minutes for the under layer to dry.

Porcelaine 150 Auxiliaries: Is it possible to apply a layer of Iridescent Medium once the colour application is complete or is it mandatory to mix the medium with the colour?
The iridescent medium should be used in combination with colours to obtain a pearlescent sheen.

Porcelaine 150 Auxiliaries: What is a medium?
It is a product intended to be mixed with the colours to obtain specific effects.