G4 Pond Sealer is a moisture cured polyurethane which forms a non-porous seal on concrete rendered ponds, G4 pond sealer uses the moisture in the air the render to harden, it can be applied to slightly damp surfaces, but it is important that the render is sufficiently dry to be porous so as to enable the first coat of G4 pond sealer to bond obtain a mechanical grip,G4 pond sealer can be applied in poor weather conditions, high humidity and at temperatures down to zero degree's.

Durable deep bonding plastic coating for concrete
Quick and simple to apply
No primer needed
Can be used at low temperatures
Seals out lime

Instructions:

1) Ensure cement render is clean, dry and porous - highly trowelled surfaces are not advised. New render should be allowed to harden for 21 - 28 days depending upon conditions. Reinforcing fibres in the cement render must be burnt or sanded off prior to coating.

2) Repair cracks and damaged areas.

3) Apply first coat by brush, avoid thick coats, and allow to become fingerprint dry, or dry enough to walk on carefully (approximately 60-90 minutes depending upon humidity). Apply subsequent coats following the above instructions. Do not all longer than 4 hours to elapse between each coat. Normally 3 coats of G4 standard are sufficient but on very porous or rough surfaces, a 4th coat maybe required. Rain will affect uncured G4 so make provision for covering if rain is suspected.

4) Allow to harden for 72 hours before washing down with clean water.

With coloured G4 the first two coats are G4 standard - clear - followed by two coats coloured G4.

Consumption:

Varies slightly depending on porosity. On normal porous cement renders:

G4 Standard - 3 Coats = 550 G/SQ.M (for the coats)

G4 Coloured - 2 Coats G4 Standard = 410 G/SQ. (for 2 coats) 2 Coats G4 Coloured = 400 G/SQ.M (for 2 coats).

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