skip to main content
Quote 'FREEP' for FREE Delivery on £35 Spend or over*
Thousands of products in stock
Selling online since 2005
98% Feefo rating

Bonda G4 Black Pond Sealer (2.5kg)

SKU: G4BLK002
Manufacturer: Bonda
bonda g4 black pond sealer (2.5kg)
Feefo logo
£89.99
RRP: £96.39
In Stock
Want this for Tuesday April 2nd? Order in the next
Days,
hours,
minutes,
and
seconds

Helpline

01642 370888

Product Description

Market leading concrete sealant.

Concrete-based ponds need a final render sealing to stop the water getting in and lime leaking out. G4 has been long-established as the market leader for this task.

When using the black paint, 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 can now be added, making a total of 410g per square metre clear and 400g sqm black.

The amount of G4 you will need depends on the internal dimensions of your pond. For example let's say the pond is 3m x 2m and 1m deep.
1) Work out the area of the bottom by multiplying the width and depth in metres (in our example 3 x 2m = 6sqm).
2) Find the area of one of the sides (depth multiplied by width or length) then multiply by 2 to cover both sides (in example sides 1 = 2 x 1 = 2sqm x 2 = 4sqm).
3) Find the area of the other pair of sides: (in example sides 2 = 3 x 1 = 3sqm x 2 = 6sqm).
4) Add up sides and floor (6sqm + 4sqm + 6sqm = 16sqm).
5) Multiply total by 550gsm = 16 x 0.55kg = 8.8kg.

Features

  • G4 can also be used to coat flagstones, waterfalls, statues and other concrete products to make them safe for your pond

  • There is enough sealant in a 2.5kg tin for 4.5sqm

  • Leave for 45-60 minutes after first coat

  • Do not leave for more than 4 hours between coats

Reviews provided by
Best Sellers
We are the leading UK pond supplies specialist and we sell the best choice of pond equipment from PondXpert, Hozelock, Laguna, Fishmate and more at discount prices.
hozelock easyclear 6000 (9w uvc, includes hose, clips & bulb) Hozelock EasyClear 6000 (9w UVC, INCLUDES Hose, Clips & Bulb)
RRP £273.99
£149.99
Max Flow:
0
Max Flow One Head:
0
Max Pond Size:
5000
UV Wattage:
9
Fountain Height:
1.3
Waterfall Width:
0.13
Newsletter Signup

Receive internet-exclusive offers, discounts and previews by email.

Tips and Advice from the Blog

Latest Tweet

© Copyright Pondkeeper 2005 - 2024. Pondkeeper is registered in England, Registration no. 5601027. Our VAT number is GB 875 4886 60.

See the site map | privacy policy | terms and conditions.

Website created by Edward Robertson web design with the Responsive Grid System