Hippo Prestige 4 In 1 Silicone Sealant - Grey
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Product Information
Full details
The Hippo Prestige 4 In 1 Silicone Sealant is a high-performance, low-modulus polysiloxane solution designed for professional tradespeople and homeowners looking for a reliable, permanently elastic seal in kitchens and bathrooms. It offers excellent flexibility and long-term mould resistance, making it an ideal choice for high-moisture areas like sinks and showers. While it provides superior adhesion and durability, users should be mindful that like most high-grade silicone, it requires a clean, dry surface for optimal bonding and a steady hand for a professional finish.
All features
| Colour | Grey |
|---|---|
| Model Part Number | H18688 |
| Brand | HIPPO |
Extended Product Information
FAQs
Is this silicone safe for food preparation areas?
Yes, it is FDA Approved 21 §177.2600, meaning it is safe for contact with food surfaces.
Can I use this on natural stone?
Yes, the Hippo Prestige 4 In 1 formula is specifically designed to be compatible with natural stone applications.
Does this silicone turn yellow over time?
The product is UV resistant, which helps prevent discolouration and degradation when exposed to sunlight.
How long does it take to fully cure?
Cure time depends on temperature and humidity, but generally, it forms a skin within minutes and cures fully over 24-48 hours.
Can this be used outdoors?
Yes, its weather-resistant properties make it suitable for both interior and exterior glazing and sealing.
Will this help prevent mould in my shower?
Yes, the formula contains specific anti-mould additives to help keep your seals clean and free of mildew in high-moisture areas.
Troubleshooting
Sealant is difficult to extrude from the cartridge
Ensure the nozzle is cut wide enough and the cartridge is at room temperature. Check that the plunger in your caulking gun is engaging correctly.
Sealant peeling away from the surface
This usually indicates the surface was not clean or was damp during application. Remove old sealant, clean with a solvent, ensure it is completely dry, and reapply.
Pros and Cons
Pros
- High flexibility prevents seal cracking over time
- Excellent resistance to mould and mildew in wet areas
- Food-grade certification allows for safe use near food preparation surfaces
- Strong adhesion to difficult surfaces like natural stone
- Weather-resistant for both indoor and outdoor applications
Cons
- Requires a standard 300ml sealant gun which is not included
- May require extra care during application to avoid mess on porous surfaces
- Requires proper surface preparation for optimal longevity
Setup, Compatibility & Care
To achieve the best results, ensure all surfaces are clean, dry, and free from grease or old sealant residue before application. Use a sharp utility knife to cut the cartridge nozzle at a 45-degree angle to the desired bead size. Insert the 300ml cartridge into a standard caulking gun and apply steady, even pressure while moving the nozzle along the joint. For maintenance, keep the area clean with mild detergents to ensure the mould-resistant properties remain effective. This product is fully compatible with aluminium, PVC, wood, and natural stone surfaces. Always store in a cool, dry place and ensure the cap is replaced if the full cartridge is not used in one session.