Interior Decoration
Storm make your beautiful home and long lasting colour.
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USE BY PAINT BRUSH
Advantages
– Good flow, good adhesion to the surface
– Penetrates well into the surface
Suitable for complex areas, corner edges
Disadvantage
– Give some color film
– Must do many trips to get the desired thickness
– Brush marks Work slowly More>>>
Application-related failures
Application related failures occur as a result of the wrong mixing and application practices Examples of application-related failures include: •Sagging •Blistering •Mud cracking •Roller marks •Peeling off
Substrate-related failures
Substrate related failures occur when there are some issues on the substrate or when adequate surface preparation is not done Examples of substrate-related failures include: •Cracking •Flaking •Surface fungus •Blistering •Efflorescence •Poor drying & curing •Peeling off
Product-related failures
Product related failures occur as a result of some issues in the paint formulation, quality of the raw material used or manufacturing process Examples of product related failures include: Cracking Chalking Foaming & Cratering Poor scrub resistance Discoloration Poor drying, curing, etc.
A paint system normally consists of
1-Primer
2-Intermediate coat(s)
3-Topcoat(s)
The important properties of primers are
1 Adhesion (Strong Bonding)
2 Cohesion (High Internal Strange)
3 Inertness (Strong Resistance to Corrosion and Chemicals)
4 Inter-Coat Bond (High Bonding to Intermediate Coat)
5 Appropriate Flexibility
