Bonda G4 Pond Sealer 5kg Black

Bonda G4 Pond Sealer Black is a moisture-cured polyurethane, which forms a non-porous seal on concrete, brick or porous stone. G4 uses the moisture in the air and substrate to cure or harden. It can be applied onto slightly damp substrates. However, it is important that the substrate is sufficiently dry to be porous so as to enable the first coat of G4 to bond and obtain a mechanical grip.

G4 can be applied in poor weather conditions, high humidity and at temperatures down to 0°C. G4 seals out lime.
G4 will not seal concrete or lightweight blocks, these must be rendered before application. Cannot be used on bitumen or pond liners.
Coverage: 550g per m²

To Download the Product Data Sheet (PDF) for Bonda Pond Sealer Black Click HERE

Finish Colour: Black 
Also Available in Blue and Green

Size: 5kg
Also Available: Bonda G4 Pond Sealer Black 1Kg and Bonda G4 Pond Sealer Black 2.5Kg

IMPORTANT: With Coloured G4 the first two coats are G4 Standard Clear followed by 2 coats of coloured G4.

Bonda G4 Pond Sealer Black Usage 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 on conditions.Reinforcing fibres in the cement must be burnt or sanded off before coating. Repair cracks and damaged areas.

2. Apply first coat by brush, avoid thick coats, and allow to become fingerprint dry or dry enough to walk carefully upon, approximately 60-90 minutes, depending on humidity. Apply subsequent coats following same instructions. Do not allow 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 may be required. Rain will affect uncured G4 so make provision for covering if rain is expected. 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 2 coats of coloured G4. Follow instructions as detailed above.

Consumption varies slightly depending on porosity. On normal porous cement renders.
G4 Standard - 3 coats  = 550g/sq.m (for 3 coats)
G4 Coloured - 2 coats G4 Standard = 410g per m² (for 2 coats)
- 2 Coats G4 Coloured = 400g per m² (for 2 coats)

G.R.P. Pools - For instructions on repairing glass fibre pools or for coating concrete pools with glassfibre, contact Bondaglass.

Bonda G4 Pond Sealer Black Technical Information

Barcode: 5014197121160
Weight: 509kg

Shelf-life/Storage: Up to 2 years if suitably stored in original, sealed container. Note; this is a moisture-curing product so shelf-life is limited once opened.
Hazards: Flammable. Irritant. Avoid contact with eyes and skin. Wear protective gloves and eye protection. In case of contact with eyes, Immediately rinse with copious water and seek medical attention. After contact with skin, wash immediately with soap and water or a suitable skin cleanser. Keep out of reach of children. Avoid ignition sources. Do not inhaled vapours.

To Download the Safety Data Sheet (PDF) for Bonda Pond Sealer Black Click HERE