Bondaglass G4 Pond Sealer Clear

Clear pond sealer for sealing your pond with just a few coats

At a glance...
  • Clear pond sealer for waterproofing your pond
  • Moisture cured polyurethane that seals out lime
  • Suitable for ponds made from rendered brick
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Bondaglass G4 Pond Sealer is ideal for waterproofing your pond. It is made from moisture cured polyurethane which forms a non-porous seal. It is ideal for waterproofing ponds crafted from rendered brick. G4 Pond Sealer uses the moisture in the air and substrate to cure and harden.

When using the black sealer, the first two coats must be G4 clear. This is because the G4 clear provides the maximum non-porous seal and adhesion. A further two coats of G4 black/green can now be added. If you are looking for a product that sets clear we recommend buying Bondaglass Seal Clear, this is ideal to use when painting stone water features for that clear discreet look.

If you have a cracked pond, then the crack must be filled before the G4 can be used to waterproof it.

Key Features:

  • Polyurethane sealer forms a non porous seal
  • Suitable for ponds made from rendered brick
  • Hardens in the air
  • First use clear G4 then coloured G4
  • One can (1kg) is 1 litre
  • Does not set clear in colour


1st and 2nd coats = clear 410g / metre sq.(for 2 coats)

3rd and 4th coats = black 400g / metre sq. (for 2 coats)

To work out how much you need, use our Pond Paint Calculator.

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