iBlok Waterstop Roof Coat Mega Exterior

At a glance

Coverage

Terrace: 1 self-priming coat at 50 sq.ft./L, then 2 coats at 25 sq.ft./L each (about 10 sq.ft./L overall). Walls: primer coat 50 sq.ft./L then 1 coat at 30 sq.ft./L each; repaint 30-35 sq.ft./L

Coats

Terrace: 3 (1 diluted + 2 undiluted); fresh wall: 2

Touch dry

40 minutes (surface dry)

Recoat after

6 hours (4-6 hrs between wall coats)

Thinning / mixing

Self-priming coat diluted 25% with water; top coats undiluted

Apply with

Roller (long nap felt roller recommended)

Pack sizes

1 L, 4 L, 10 L, 20 L

Warranty

12 years (subject to PIS conditions)

Low VOC / green

Low VOC

Curing

Overcoat interval 4-6 hrs at 30C

Good to know

Apply 5-35C; elongation 507% horizontal / 310% vertical; crack bridging up to 5 mm; hydrostatic pressure 11 bar horizontal, 8 bar vertical; finish coat within 7 days on vertical; not for rainwater harvesting

Why choose it

• PU-fortified elastomeric membrane
• 12-year waterproofing warranty
• Film stretches 507% on horizontal use and bridges cracks up to 5 mm
• Resists 11 bar water pressure (horizontal) per EN 12390-8
• Reflects heat: surface up to 14C cooler (white, in-house test)
• Fibre reinforced, blocks carbonation and efflorescence

How to use it

Cure fresh plaster 28 days. Remove old bitumen, loose paint and algae, jet-wash and vacuum, repair cracks with Crack Fix and give the terrace a proper slope so water does not pond. Treat any active leak source first.

Recommended system

1. iBlok Waterstop Crack Fix for cracks
2. JSW exterior emulsion topcoat on walls (as per PIS)