Guide to industrial painting
- 01. What is industrial paint?
- 02. Paint systems
- 03. Defects, causes and solutions
- 04. Industrial labor safety
Sanding marks
Visible lines or marks in the paint fi lm that follow the direction of the sanding process.
Cause
- Insuffi cient dry/cure of undercoats before sanding and topcoating.
- Incorrect selection of the sanding orbit.
- Inapropiate choice of grit sandpaper.
- Paint layer too thin to cover and fi ll the sanding marks.
- Inadequate preparation of previous layers of paint.
Solution
- Follow the drying times as stated in the data sheet before sanding.
- Depending on the coat that needs sanding, choose the correct orbit for the sander. Use small orbits for fi nishing coats.
- Choose the correct grit sandpaper, taking into account the thickness of the paint that needs sanding.
- Sand the surface with the aim of applying only enough paint to cover or fi ll the marks.
APPLICATION PROBLEMS