Paint Fading (colour change) problems

 
Fading is a change in colour of the pigment portion of the film due to exposure to sunlight, or in a few cases to chemical fumes. Do not confuse fading with chalking or dulling. Fading generally goes deep into the film, and unlike chalking and dulling cannot usually be polished out.
If the job is badly faded (after it has been polished out) the only cure is to repaint.

Prevention
Some coloured pigments and pigment combinations are more resistant to fading than others. It is very difficult to prevent fading and about the only measures the painter can take to help are:

1. Use paint developed and made by a reliable manufacturer.
2. Use enough colour on the job to obtain good hiding.
3. Tint with only the bases recommended by the paint company for the type of colour in question.