Supertech Pro Putty exterior

Supertech Pro Putty exterior is exterior wall putty used for surfaces of cement wall celling, concrete, which need to be smooth before applying sealer or topcoats. It’s suitable for all kinds of exterior emulsion paints. Non-flaking, noncracking. Long lasting durability and stand up to severe weather condition.

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Intended use:

Supertech Pro Putty exterior is used for repairing to surface defects smoothing on concrete, brick and block works etc. before applying paints.

Technical Data

  • Components: Cement, filler, polymer, additive
  • Color: White
  • Theoretical coverage: 1.2 - 1.3 kg/m²/1mm (depends on substrate surface)
  • Water retention: >/= 98% (According TCVN 7239)
  • Hardness of surface after 7 days: >/= 0.12 (According TCVN 7239)
  • Fineness test (retained content on sieve 0.09 mm): </= 3% (According TCVN 4030)
  • Setting time: (According to TCVN 6017)
  • - Start: No earlier than 110 mins
  • - Finish: No later than 450 mins
  • Adhesion strength: (According to TCVN 7239)
  • - Standard condition >/= 0.45 MPa:
  • - After soaking 72 hours >/= 0.3 MPa:
  • - After heat shocking test >/= 0.3 MPa:

Construction methods

  • Application tools: Trowel or putty knife
  • Mixing: Use about 14 - 16 liter of clean water for a 40 kg bag of putty. Add slowly putty into water to avoid lumping. Mix thoroughly the mixture for about 7 – 10 mins then mix well again before application.
  • Cleaning: Clean equipment with water immediately after use.

Construction Guide

SURFACE PREPARATION

New surface

Let the concrete, cement plaster and mortar must be cured at least 28 days in ambient condition (average temperature is 25°C -30°C, relative humidity <75%), the surface moisture is not exceed 16% (specialized measuring testing equipment). pH value is about 6-9.

Remove all dust, grease, wax, laitance, chalking and others contamination from the surface by specialized machine as: grinding, sanding, vacuum cleaner, high pressure water jet and proper cleanness.

Apply 2 coats Supertech Pro Putty for smooth surface.

Old surface

Remove all dust, fungus, algae, loose old paint or others contamination from the surface by specialized machine as: grinding, sanding, vacuum cleaner, high pressure water jet and proper cleanness.

Then, treat the areas attacked by fungus, algae with proper chemicals.

Wash the surface if required, let it fully dry, the substrate moisture must be lower than 16% (specialized measuring testing equipment)

Repair the damaged area. Cracks bigger than 0.1mm must be fixed and make smooth by Supertech Pro Putty exterior.

Apply 1 coat of premium multipurpose primer - TOA Hydro Quick Primer for chalky or powdery surface after making surface clean.

APPLICATION

Apply the first layer of approx. 1 mm thickness by using trowel or putty knife to make a smooth layer.

After 1 - 2 hours, apply the second layer with the same thickness as the first Let the second layer dry completely, minimum 6-8 hours, smooth surface with sanding paper.

After sanding, use a broom to clean the surface from dust, roll over the surface by wet towel or absorbent roller and then waiting in 1-2 hours before applying.

Notice: Apply 1-2 layer, depends on condition of surface and substrate, total plaster not over 2 mm thickness.

Do not apply when surface temperature is above 40°C

On dry wall and highly absorbent surface, need to wet surface and reduce surface temperature before applying.

For good finishing, should use recommended paint systems and application instruction from TOA Paint Vietnam Co., Ltd.

Recommended paint system

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