Print document
 12 of 47 
 
029
CHEMICALLY CONTAMINATED SURFACES
Surfaces that have been infected by chemical matter prior to painting. 
Surface Preparation: 
Old unpainted surface: The surface must be thoroughly cleaned to
remove all types of contaminants. Allow the surface to breathe and dry. 
Pre-painted surface: It is wise to remove the coatings contaminated
with chemicals since complete cleaning may not be an easy job
together with chances of any residual contaminants, which may
cause problem to new coatings. 
Painting:
Subject to environment condition: 
A.
2 – 3 coats of Chlorinated Rubber Paint. 
B.
2 – 3 coats of Epoxy Paints. 
N.B. For steel structure a suitable primer coat is always needed. 
030
CHIMNEYS
Surface preparation: 
The surface to be painted must be free from rust and cleaned to fresh bare
metal. Recoating can be done with similar paint if the previous one is found quite
sound.
Painting: 
General Purpose
: 2 – 3 coats of Heat Resisting Chimney Black. 
High Heat Resisting
: After 1 coat of High Heat Resistant Primer 2 
  coats of High Heat Resisting Paint.(up to 600
0
C)
031
COPPER
A reddish malleable ductile metal. On exposure, green verdigris develops on the
surface ensuring adequate protection against further corrosion. For this reason it
is not necessary to paint copper to protect it but only as cosmetic treatment on
interior surfaces when required. 
Surface preparation: 
Remove all grease and dirt back to clean bright metal by abrading with steel
wool or abrasive paper. Wipe copper with white spirit and allow to dry.