






WATERPROOFING HYDRO SEAL 12KG
12 kg Hydro Seal waterproofing for ponds
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Or 4x R 274.75 interest-free
* Higher first payment may apply on large purchases
12 kg pack for larger projects
Seals porous surfaces against water
Suits new ponds, fountains and masonry
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 12kg
Create a durable waterproof barrier for ponds, fountains, pools and water features with Hydro Seal.
Hydro Seal is a waterproofing solution designed to seal suitable porous surfaces and help reduce water penetration.
Ideal for larger projects, the 12kg Hydro Seal can be used when building a new pond, renovating an existing water feature, waterproofing a fountain or treating other compatible concrete and masonry surfaces.
Rather than simply sitting on top of the surface, Hydro Seal penetrates into the substrate and reacts with free lime to form a hard crystalline structure. This helps block pores within the treated surface and reduce the movement of water through it.
Why Choose Hydro Seal?
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Ideal for pond waterproofing – Helps reduce water penetration through suitable porous surfaces
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Suitable for water features and fountains – A practical waterproofing solution for new installations and renovations
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Suitable for compatible pool surfaces – Can be used as part of suitable pool waterproofing applications
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Crystalline waterproofing action – Helps block pores within the treated substrate
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Suitable for repairs – Can be applied to appropriately prepared and repaired areas
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Versatile application – Suitable for ponds, fountains, pots and other compatible surfaces
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12kg bulk pack – A practical choice for larger waterproofing projects
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Charcoal colour – Creates a dark, neutral finish that works well in many water applications
How Hydro Seal Works
Hydro Seal works within the treated surface rather than simply creating a coating on top.
As moisture is absorbed into the substrate, Hydro Seal penetrates the surface and reacts with free lime. This reaction creates a hard crystalline structure that helps block pores and reduce water penetration.
Once correctly applied and cured, the waterproofing becomes an integral part of the treated surface.
Where Can You Use Hydro Seal?
Hydro Seal is suitable for waterproofing applications including:
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Garden ponds
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Pond bases
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Water features
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Decorative fountains
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Fountain bases
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Suitable pool bases
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Pots and planters
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Water feature repairs
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Suitable concrete and masonry surfaces
Coverage & Application
A 12kg bucket covers approximately 6m² for one coat.
For the recommended two-coat application, allow for approximately 3m² of total coverage.
| Product | Coverage – 1 Coat | Coverage – 2 Coats |
|---|---|---|
| 12kg Hydro Seal | Approx. 6m² | Approx. 3m² |
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 Requirements
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.
Product Specifications
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Product: Hydro Seal Waterproofing
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Pack Size: 12kg
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Colour: Charcoal
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Coverage: Approximately 6m² per coat
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Recommended Application: 2 coats
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Approximate Coverage at 2 Coats: 3m²
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Mixing: Water + bonding liquid
Made for Larger Waterproofing Projects
If you're working on a larger pond, fountain, pool base or water feature, the 12kg Hydro Seal gives you more material for covering larger surface areas.
With approximately 6m² coverage for one coat or 3m² for the recommended two coats, it's a practical choice for larger waterproofing jobs where a smaller pack simply won't be enough.
Manual
Range: Pool Products, Water Features

WATERPROOFING HYDRO SEAL 12KG
