Premium + 500 Bath & Sanitary Silicone

Sika Premium+ 500 Bath & Sanitary Silicone is a professional-grade, mid-modulus acetoxy cure silicone sealant engineered for high-humidity environments. Supplied by Sika Limited under the trusted Everbuild Everflex brand, it cures quickly to form a permanently flexible, high-strength waterproof seal — making it the go-to bathroom sealant for both trade professionals and DIY installers across the UK.

Key Features and Specifications

• Type: Mid-modulus acetoxy cure silicone sealant
• Pack size: 295 ml C3 cartridge
• Colours available: White, Translucent/Clear, Ivory, Stone, Grey, Sandstone
• Anti-fungal formula: High-level fungicidal compound actively prevents mould and fungal growth
• Flexibility: Permanently flexible — accommodates joint movement without cracking
• Cure speed: Quick-curing with low dirt pick-up
• Shrinkage: ≤10% (ISO 7390)
• Stress: 0.3 MPa at 100% elongation (DIN 53504)
• Application temperature: +5 °C to +30 °C
• Storage: Cool, dry conditions between +5 °C and +25 °C; shelf life 24 months from manufacture
• Certifications: EN 15651 (sanitary, façade, glazing & cold climate); ISO 11600 F and G 20LM; tested to ISO 8339 and ISO 10590/10563
• Substrate compatibility: Glass, ceramics, metal, aluminium, PVCu, laminates, timber (prepared)
• Coverage: Approx. 10 linear metres at a 9 × 9 mm fillet joint
• Supplier: Sika Limited, Welwyn Garden City, Hertfordshire

Applications

• Sealing around baths, shower trays, basins and sanitaryware
• Sealing worktops, laminates and food preparation surfaces
• Cap sealing to metal, timber and PVCu window frames
• Fixing PVCu trims and panels as an adhesive sealant
• Internal sealing in wet rooms, toilets and kitchens subject to condensation
• General weatherproofing and glazing applications

Why Choose This Product

The Sika Premium+ 500 Bath & Sanitary Silicone stands apart through its EN 15651-certified formulation, which guarantees compliance with the Construction Products Regulation — essential for commercial and domestic projects alike. Its high-level anti-fungal compound resists discolouration even after prolonged exposure to damp conditions, while the quick-cure, low-dirt-pick-up finish keeps installations looking clean and professional. Available in multiple colours to match any bathroom scheme, and suitable for trade quantities, it delivers consistent, reliable performance on every job.

Delivery in and Around London

We deliver the Sika Everbuild Everflex Premium+ 500 Bath & Sanitary Silicone to all London boroughs, including Croydon, Lewisham, Southwark, Camden and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge and Barnet. We also supply across the surrounding counties of Kent, Essex, Surrey and Hertfordshire. Trade quantities and bulk orders are welcome — contact us for volume pricing and scheduled delivery options.