Birla Opus Alldry Wall Fix 4
Birla Opus

Waterproofing · Primer / basecoat (white)

Alldry Wall Fix 4

A waterproof acrylic basecoat for vertical exterior walls. It goes under Birla Opus exterior emulsions and adds extra water resistance to the wall.

FinishPrimer / basecoat (white)
Coverage40-45 sq.ft per litre per coat
Touch dry4-6 hours
CoatsFresh walls 2

Best for: Exterior walls with seepage risk, Under exterior emulsion topcoats, Parapets and sunshades

At a glance

Coverage
40-45 sq.ft per litre per coat (3.71-4.18 sq.m per litre)
Coats
Fresh walls 2; repaint 1
Touch dry
4-6 hours
Recoat after
4-6 hours
Thinning / mixing
First (primer) coat 10% with potable water; other coats undiluted
Apply with
Brush or roller
Pack sizes
1 L, 4 L, 10 L, 20 L
Shades
White
Warranty
Up to 5 years as a basecoat under a Birla Opus exterior topcoat (depends on the topcoat); product page lists 4 years
Shelf life
36 months
Good to know
Tensile strength up to 2.5 N per sq mm. Apply between 10 and 40 degrees C; no rain within 48 hours.

How much will I need?

A rough estimate from the coverage on the data sheet. Real coverage depends on the wall.

Enter the wall area or room size.

Why choose it

  • Resists water pressure up to 5 bar
  • Acrylic fibres add toughness
  • Stretches up to 100%
  • Strong grip on the wall

How to use it

Cure new plaster 28 days. Clean the wall, keep it dust-free and saturated dry. Fill cracks up to 5 mm. Repair bigger defects with polymer-modified mortar.

Recommended system

  1. Alldry Crack Master Paste for cracks up to 5 mm
  2. Birla Opus exterior emulsion topcoat

Source These details are taken from Birla Opus's official website and technical data sheet, and written in simple words by APS. Brands update their products from time to time, so please check the pack and the latest data sheet before use. See the official page

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