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MataHari

Independent Painting Service

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As topic. Any kind souls care to share...

And btw do we need selaer for wall??

wat do u mean by independent painting service?

i got this from nippon website when i am doing "research" for home painting. and fron other threads here. so i am just cutting & pasting the info. those all caps not i shouting :jawdrop:

if u have re-plastered yr walls u need sealer b4 painting.

WALL SEALERS ARE NOT MEANT TO SEAL OFF TRAPPED MOISTURE IN THE WALLS. SEALER SERVES TO GIVE BETTER ALKALI RESISTANCE AND STRONG BONDING FOR BETTER ADHESION. MORE APPROPRIATELY, THE SEALER IS AN ALKALI RESISTING PRIMER.

• Alkalinity above pH 12 is not recommended for painting

• Normal safe painting for walls is within pH 9 and below.

• For alkalinity above pH 9 but below pH 12; a coat of alkali resisting sealer (Nippon Acrylic 5170 Wall Sealer) is recommended.

• Wall Primers basically have higher binder content which are of alkali resistant grades. Eg: Styrene acrylics, Pure acrylics

The particle size of these primers are much smaller which creates stronger bonding and allows deeper substrate penetration for better adhesion.

sealer got 2 kinds: water based and oil-based.

A water-based sealer that is suitable for interior masonry surfaces. It is formulated to prevent deterioration of emulsion paints by alkalinity of surfaces.

• Good adhesion

• Anti-fungus and algae resistance property

• Fast drying for convenient re-coating and over-coating

• Good alkaline and efflorescence resistance

Oil-based wall sealer contains a superior resin/binder, effective in preventing the degradation of finishing coats by alkaline surfaces. It contains a blend of solvents that enables it to penetrate deeply and gives a firm base for subsequent coats.

• Excellent alkaline resistance

• Efflorescence resistance to prevent discolouration

• Good adhesion on masonry substrates

• Able to prevent resurfacing of strain marks on problem substrates

• Fungus and algae resistance property

hope this helps.

 

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