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Sikasil Pool is a neutral-cure silicone sealant for swimming-pool joints, permanently immersed joints and frequently wet areas. It accommodates ±25% joint movement and is formulated to resist water, pool chemicals and fungal growth when pool water is maintained correctly.
Use Sikasil Pool between compatible glazed tiles, concrete, glass and metal fixtures in pools and wet areas, with the specified surface preparation and primers. Its neutral-cure formulation suits selected metals and glazed surfaces. For submerged joints, give special attention to adhesion preparation and full cure before filling.
Allow at least 7 days of curing before filling. Actual cure depends on joint dimensions, temperature and humidity. Use properly designed joints between 10 and 35 mm wide, with 6–10 mm sealant depth. Maintain pool water pH between 6.5 and 7.6 and free chlorine below 5 mg/L.
Do not paint Sikasil Pool. It is not for structural or insulated glazing, food-contact or medical applications. Avoid bituminous materials, natural rubber, EPDM and substrates that release oils or plasticisers. Obtain technical advice before use on natural stone and avoid acid-based pool detergents.
Can Sikasil Pool be used under permanent water immersion?
Yes. It is designed for pool and permanently immersed joints once fully cured.
How long should it cure before the pool is filled?
Allow at least 7 days, with actual cure depending on temperature, humidity and sealant thickness.
How much movement can it accommodate?
It is rated for ±25% movement to ISO 9047.
Can Sikasil Pool be painted?
No. It is not paintable.
| Property | Value |
|---|---|
| Density | 1.05 kg/l |
| Shore A Hardness | 20 (after 28 days) |
| Tensile Strength | ~1.5 N/mm² (ISO 8339) |
| Modulus | ~0.6 N/mm² at 100% elongation (+23°C, ISO 8339) |
| Movement Capability | ±25% (EN ISO 9047) |
| Elastic Recovery | > 90 % |
| Tear Strength | 4.0 N/mm |
| Service Temperature | −40 °C to +80 °C |
| Sag / Slump | < 2 mm (20 mm profile, 23 °C) |
| Ambient Temperature | +5 °C to +40 °C |
| Substrate Temperature | +5 °C to +40 °C |
| Cure Rate | 2.0 mm/24 h (23 °C / 50 % r.h.) |
| Skin Time | 5 min (23 °C / 50 % r.h.) |
| Shelf Life | 15 months from date of production |
| VOC Content | 50.4 g/l |
| Joint Design | Joint width 10–35 mm; joint depth 6–10 mm (September 2025 Australian PDS) |
Here are some common examples on where Sikasil Pool Silicone Sealant used by our customers.
