Food-Processing-Plant-Design-layout

Food Processing Plant Design & layout
3. Cracking and scaling: This happens when paint becomes too brittle as it ages and
then it begins to break. The wood expands and contracts due to moisture absorption
which may break the film of colour. However, in the long run, the elasticity of the
paint decreases. In order to overcome this, more elastic paints of higher grade should
be used. In order to repaint the surface, first the old paint should be removed. This
can be done by scrapping, using a sand paper or a wire brush, blow torch and
scrapper or by using chemical solvents. (liquid paint removal).
4. Running and sagging: Use of too much oil results in sagging down and applying
too much thick coat also results in sagging. Application of paint to very glossy a
surface would also result in sagging. It is necessary to maintain proper viscosity and
surface finish of the surface to be painted.
5. Wrinkling: Formation of wrinkles is due to improper drying of paints applied on the
surface. This happens when surface dries quickly leaving undried paint below.
www.AgriMoon.com
128