Coverage will vary with substrate type, porosity, and surface condition. Always check thickness with a wet film gauge during application to guarantee certified performance.
Passive Purple External / Passive Purple X / Passive Purple Retrofit
Substrates: OSB, plasterboard, blockwork, brickwork
- OSB & Plasterboard → approx. 0.8–1.0 kg/m² (10–12 m² per tub)
- Blockwork & Brickwork → approx. 1.0–1.2 kg/m² (8–10 m² per tub)
Notes:
- Fire Class B airtight paint (External version).
- KIWA, ICC, and Passivhaus certified.
- Vapour-open, airtight, and smoke-tight.
- X = new build focus; Retrofit = retrofit focus.
Passive Purple
Substrates: OSB, plasterboard
- OSB & Plasterboard → approx. 0.8–1.0 kg/m² (10–12 m² per tub)
Notes:
- Internal airtight paint for new builds.
- Seamless, crack-bridging finish.
Passive Purple Brush (Fibre Reinforced)
Substrates: OSB, blockwork, junctions, penetrations
- All substrates → approx. 1.2–1.5 kg/m² (6–8 m² per tub)
Notes:
- Fibre-reinforced airtight paint.
- Used for detailing, penetrations, and gap bridging.
Airtight White
Substrates: OSB, plasterboard, blockwork, brickwork
- OSB & Plasterboard → approx. 0.8–1.0 kg/m² (10–12 m² per tub)
- Blockwork & Brickwork → approx. 1.0–1.2 kg/m² (8–10 m² per tub)
Notes:
- White airtight paint for clean internal finishes.
Poseidon Waterproof Membrane
Substrates: Cement boards, plasterboard (wet zones), concrete
- All substrates → approx. 1.2 kg/m² (≈8 m² per tub)
- Flexible, crack-bridging waterproof membrane.
- Applied in 2 coats.
- For bathrooms, wetrooms, and behind tiles.
Goat Waterproof Membrane
Notes:
Substrates: Cement boards, plasterboard (wet zones), concrete
- All substrates → approx. 2.0 kg/m² (≈5 m² per tub)
Notes:
- Heavy-duty liquid waterproofing membrane.
- Applied in 2 coats.
- Designed for wetrooms and high-moisture areas.
Intelligent Protect
Substrates: Glass, frames, finished surfaces
- All substrates → approx. 0.4 kg/m² (≈25 m² per tub)
Notes:
- Temporary peel-off protection.
- Applied by spray (airless or hand pump).
Supergrip
Substrates: Smooth or non-porous surfaces (metals, plastics, sealed surfaces)
- All substrates → approx. 0.2–0.3 kg/m² (≈33–50 m² per tub)
Notes:
- High-grip primer.
Lime Prime
Substrates: Lime plasters, stone, porous masonry
- All substrates → approx. 0.15–0.25 kg/m² (≈40–65 m² per tub)
Notes:
- Breathable primer for mineral substrates.
IM Primer
Substrates: Porous or dusty surfaces
- All substrates → approx. 0.15–0.25 kg/m² (≈40–65 m² per tub)
Notes:
- General-purpose primer.
- Can be applied by roller, brush, or spray.
Key Notes
- OSB & plasterboard absorb less → lower consumption.
- Blockwork & brickwork are more porous → higher consumption.
- Waterproofing membranes require two coats for full performance.
- Always use a wet film gauge to confirm correct application thickness.