8/12/2019 Wall Putty

1/1

WALL PUTTY

Wall putty consists of white cement, high quality polymers and specialty chemicals and mineral fillers and isformulated to make it suitable to apply even on damp surfaces. Being cement based putty, it has bettercompatibility with the base plaster and forms a durable base for paints. It can be applied on both, Interior andexterior plastered surfaces. It is a water resistant base coating to the plastered surfaces to provide fine leveling

and a protective base for the surfaces to be painted.

Wall putty shall have superior water resisting properties to prevent paint from flaking even if the walls aredamp. It should fill-up fine pores in walls and ceilings to get the smooth and dry surface for painting. Wall puttyshall have better properties in terms of water-resistance, adhesive strength and durability as compared to theordinary putties. The putty shall provide a breathable surface and allow any trapped moisture to move outkeeping the wall dry and clean.

PREPARATION OF SURFACE:

Surface should be clean of loose particles, dirt, grease and traces of foreign material. Loose plastered areas/defective materials shall be removed & surface re-plastered and cracks filled-up

properly.

Uneven ceiling/wall surfaces shall be made even by re-plastering. Surface should be pre-wetted prior to application. This helps in providing a strong bond with substrate.

Mixing/Composition

12 to 16 litres of clean water shall be required for a bag of 40 kg of wall care putty. Mix shall be stirred continuously by using an electric mixer or by hand to obtain a homogeneous lump-

free paste. The paste shall be allowed to stand for about 10 minutes for the additives to dissolve. The paste shall be re-mixed again for about 2 minutes.

This mix should be used within 60 minutes.

APPLICATION:

The plastered surface shall be dampened with clean water and excess water shall be allowed to bedrained off.

Using a steel trowel/blade, the above mix shall be applied to a thickness of about 1 2 mm. Then thesurface shall be levelled and smoothened. This first coat shall be cured lightly after it dries-up.

Then second coat shall be applied after first coat is fully dried and set. Second coat shall be curedlightly for two days.

Over plastered, fine wall care putty of about 1 to 1.5 mm thickness shall be applied, to smoothen thesurface with a steel trowel.

The thickness of each coat should not exceed 1.5mm and total wall putty thickness should not exceed3mm.

Coverage of wall care putty depends upon surface quality. However, approximate coverage for finewall care putty shall be 20-22 Sqft/kg and for coarse wall care putty, it shall be 9-10 Sqft/kg.

Application of primer before painting is not necessary over the surfaces finished with wall care putty.