JSW Paints iBlok Waterstop Damploc Interior
JSW Paints

Waterproofing · White undercoat

iBlok Waterstop Damploc Interior

A ready-to-use waterproofing undercoat for damp interior walls, including walls with salty efflorescence. It is meant to be covered with putty before paint.

FinishWhite undercoat
Coverage40-50 sq.ft. per litre per coat
WarrantyEndures 3 years
Touch dry6-8 hours

Best for: Damp interior walls, Efflorescence patches, Moisture up to 70% (per PIS)

At a glance

Coverage
40-50 sq.ft. per litre per coat (forced coverage by brush)
Coats
2
Touch dry
6-8 hours (surface dry)
Recoat after
6-8 hours
Thinning / mixing
No dilution
Apply with
Flat brush
Pack sizes
1 L, 4 L
Warranty
Endures 3 years (subject to PIS conditions)
Low VOC / green
Low VOC; LEED compliant
Good to know
Surface moisture must be below 70%; apply 10-45C; do not apply primer or topcoat directly over it

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

  • IPN (inter-penetrating network) technology to lock in damp and efflorescence
  • Anti-efflorescence
  • Ready to use, no thinning
  • Passes 4 bar negative hydrostatic pressure (ASTM D7088)
  • Endures 3 years

How to use it

Wash the wall, remove loose sand, paint, fungus and salts, repair cracks and fix any active leak first. Surface should be saturated surface dry. Apply two coats, then two coats of putty within 7 days, then prime and paint.

Recommended system

  1. iBlok Waterstop Putty or JSW Wall Putty, 2 coats within 7 days (sand with 180 paper)
  2. iBlok Waterstop Crack Fix for cracks up to 3 mm

Source These details are taken from JSW Paints'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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