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083
PLASTICS
Plastics are a generic term used for a very wide range of materials varying from
hard, rigid product like HDP windows, gutters, down pipes & laminates to very
soft flexible products like PVC coverings and electrical leads. 
A general specification for painting softer plastics cannot be given because of
their diversity in manufacturing as such it may be referred to our sales centre for
technical assistance. 
RIGID PLASTICS
Surface preparation:
The surface should be washed with a detergent solution or solvent to remove
grease, oily matters etc. After rinsing with clear water to remove washing
residues the surfaces should be lightly abraded with fine grade abrasive paper
to produce a ‘key’
Painting:
Priming is not required. 
Apply 2 coats of Robb. Super Gloss Synthetic Enamel Paint.
084
PRECAST CONCRETE
Concrete formed into various shapes and profiles prior to erection on site. 
Surface Preparation:
It is essential to ensure that all traces of the mould release agent are removed
from surface prior to painting. It should also be ensured that the concrete is dry. 
Painting:
2 – 3 coats of Acrylic Plastic Emulsion (APE)
085
PLYWOODS
Plywoods are made of three or more thin layers of wood bonded together with
the grain of each sheet laid at right angles to the previous sheet. This gives the
furnished sheet great stability and strength. 
Surface Preparation & Painting: 
[Same as for ‘Softwood’ and ‘Hardwood’.]
086
PREVIOUSLY PAINTED SURFACES 
To overcoat previously painted surfaces one has to look into the condition of
painting its adherence to the substrate, its soundness, Color fading, chalkiness
etc. Moreover, it should be wise to identify the type of paint used. If the