A colour wash is usually prepared by adding the necessary colouring pigments in suitable quantities to the screened white wash or liquid mixture of white wash. It should be ensured that the colouring pigment is not affected by the presence of lime. The colour wash is applied in exactly the similar manner as white wash. The colour is constantly stirred with a stick during its use. The quantity of colour wash, which is just enough for the day’s work, should be prepared at a time in the morning.
- Normally, the ceilings are white washed and the walls are colour washed.
- Before applying colour wash on new surfaces or scrapped surfaces, a coat of white wash should be applied. This coat will act as a priming coat and incidentally result in economy also.
- In the case of old work, a coat of colour wash is first applied over the patches or repaired work and rectified surface spots. Two or more coats of colour are then applied on the entire surfaces till it presents the desired finish.
- A satisfactory finish should not give out the powder when rubbed with fingers.
COLOUR WASHING