






WATERPROOFING HYDRO SEAL 25KG
25 kg Hydro Seal waterproofing for ponds
Taxes included. Free shipping over R2,500
Or 4x R 519.75 interest-free
* Higher first payment may apply on large purchases
25 kg bucket for bigger projects
Seals porous surfaces against water
Suits ponds, pool bases and fountains
In stock, ready for collection now
- 7-day returns
- Proudly South African
- Door-to-door delivery in SA
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Pickup available at 51 Gerhardus Street
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Description
Waterproofing Hydro Seal 25kg
Create a durable waterproof barrier for ponds, pools, fountains and water features with Hydro Seal.
Hydro Seal is a practical waterproofing solution designed to help seal porous surfaces and reduce water penetration. The larger 25kg bucket is ideal for bigger ponds, pool bases, fountains and water feature projects where more coverage is required.
Hydro Seal penetrates the surface through moisture absorption and reacts with free lime within the substrate to form a hard crystalline structure. This helps block pores against water penetration and, once properly cured, becomes an integral part of the treated surface.
Whether you're building a new pond, waterproofing a pool base or repairing an existing water feature, the 25kg Hydro Seal is a practical choice for larger waterproofing projects.
Product Uses:
Hydro Seal can be used for waterproofing applications including:
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Garden ponds
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Pond bases
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Pool bases
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Water features
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Decorative fountains
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Fountain bases
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Pots and planters
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Suitable repaired cracks
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Suitable concrete and masonry surfaces
How Hydro Seal Works
Hydro Seal works within the treated surface rather than simply sitting on top of it.
As moisture is absorbed into the substrate, Hydro Seal penetrates the surface and reacts with free lime. This reaction forms a hard crystalline structure that helps block pores and reduce the movement of water through the treated area.
Once correctly applied and cured, the waterproofing becomes an integral part of the surface.
Specifications:
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Pack Size: 25kg bucket
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Colour: Charcoal
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Coverage: Approximately 14m² for one coat
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Recommended Application: 2 coats
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Approximate Coverage at 2 Coats: 7m²
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Mixing: Water + bonding liquid
Coverage & Application
A 25kg bucket covers approximately 14m² for one coat.
For the recommended two-coat application, allow for approximately 7m² of total coverage.
| Product | Coverage – 1 Coat | Coverage – 2 Coats |
|---|---|---|
| 25kg Hydro Seal | Approx. 14m² | Approx. 7m² |
Please note: Actual coverage may vary depending on the porosity, texture and condition of the surface, as well as the thickness of each coat.
Mixing & Surface Preparation
Hydro Seal needs to be mixed with water and bonding liquid before application.
Correct surface preparation is important for effective waterproofing. Before applying Hydro Seal:
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Remove dirt, dust and contaminants
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Remove loose or unstable material
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Properly repair suitable cracks and damaged areas
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Make sure the substrate is correctly prepared before application
Always follow the recommended mixing, application and curing instructions for the best results.
Ideal for Larger Waterproofing Projects
With approximately 7m² of coverage when applying the recommended two coats, the 25kg Hydro Seal is ideal when you need to waterproof a larger pond, pool base, fountain or water feature.
Its charcoal finish works particularly well in water feature applications, while the crystalline waterproofing action helps protect suitable porous surfaces against water penetration.
Delivery Note: Delivery is not included in the product price and will be calculated separately based on your order.
Manual

WATERPROOFING HYDRO SEAL 25KG
