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Technical Data Sheet TDS-WM-SWPS · Rev 01 · October 2026

Wallman · Putty & primers

Synthetic Wall Primer Sealer

Oil-based sealer that locks out alkali, damp and stains.

  • Oil-based wall sealer
  • Solvent based
Wallman Synthetic Wall Primer Sealer
  • Coverage10 – 12 m²/L
  • Touch dry1 – 2 hours
  • Coats1
  • ThinningMineral turpentine
  • FinishFlat
  • Shelf life24 months, unopened

01Product description

Wallman Synthetic Wall Primer Sealer is a solvent-based alkyd sealer that soaks into plaster and cement and binds it into a hard, sealed base. It blocks alkali from new cement and helps stop water marks, smoke and old stains from showing through, so emulsions and enamels dry to an even, long-lasting colour. Use it on new or patchy walls, inside and out — especially under Wallman Synthetic Matt Enamel and Weather Defence.

Recommended for

  • New plaster
  • Cement and patchy or stained walls — interior & exterior

02Key features

  • Deep-penetrating alkyd sealer
  • Blocks alkali from new cement
  • Helps stop stains and water marks showing through
  • Excellent adhesion for emulsions and enamels
  • Hard, even base that saves topcoat
  • For interior and exterior walls

03Performance

Drying time at 25°C

30 min1 h4 h1 day7 daysTouch dry1 – 2 hours

Sheen level

Flat
  1. Matt
  2. Low sheen
  3. Silk
  4. Semi-gloss
  5. Gloss

Apply with

  • Brush
  • Roller
  • Spray
PACS Premium Asian Coating Systems
Karachi, Pakistan
ISO 9001:2015
quality-managed production
pacsofficial.com
TDS-WM-SWPS · Rev 01 · October 202601 / 02
Technical data & application Synthetic Wall Primer Sealer
Technical Data Sheet
TDS-WM-SWPS
Scan for latest version

04Technical data

Product typeAlkyd (synthetic) wall primer sealer
FinishFlat
ColourWhite
Volume solids35 ± 2%
Specific gravity1.20 – 1.30 kg/L
Theoretical coverage10 – 12 m²/L per coat (108 – 130 sq ft)
Touch dry1 – 2 hours
Topcoat after8 – 12 hours (overnight recommended)
ThinnerMineral turpentine, 10 – 20%
ApplicationBrush, roller, spray
Recommended coats1 (2 on very porous or stained walls)
Shelf life24 months, unopened

Typical values at 25°C and 50% relative humidity. Practical coverage depends on surface texture, porosity and application method.

05How to apply

Surface preparation

  1. Surface must be completely dry, clean and sound, free of dust, grease, loose paint and efflorescence.
  2. New plaster should cure for at least 28 days before sealing.
  3. Fill cracks and dents with Wallman Premium Wall Putty, allow to dry and sand smooth.
  4. Brush off all sanding dust.
  5. Treat fungus or algae and let the wall dry fully before sealing.
  6. Do not apply on damp walls — fix the source of seepage first.

Application

  1. Stir thoroughly before use.
  2. Thin with mineral turpentine, 10 – 20%, according to surface porosity.
  3. Apply one even coat by brush, roller or spray; two coats on very porous or stained walls.
  4. Allow 8 – 12 hours, preferably overnight, before the topcoat.
  5. Finish with Wallman emulsions, Weather Defence or Synthetic Matt Enamel.
  6. Keep the area ventilated while painting and clean tools with mineral turpentine.

06Storage, health & safety

  • Flammable — no naked flames
  • Ventilate well while painting
  • Avoid skin contact
  • Keep away from children

Store in a cool, dry, well-ventilated place away from heat, sparks and open flame, with the lid tightly closed. Flammable — do not smoke while painting. Avoid inhaling vapour; use in ventilated areas. Keep out of reach of children.

The information in this data sheet is given in good faith, based on laboratory testing and practical experience. As conditions of use are beyond our control, no warranty is implied as to results. Premium Asian Coating Systems reserves the right to change this information without notice; please check that you have the latest issue.