HB42 Simply Ultimate Silicone - White or Clear - 290ml

HB42 Ultimate Silicone – Neutral Cure, High Gloss Sealant

HB42 Ultimate Silicone delivers a premium, high-gloss, professional finish for bathrooms and wet rooms. It's just as capable beyond sanitary work too - think kitchens, stone floors, granite and marble worktops, external brickwork, glazing, and connection and expansion joints.

This is an acetoxy-free, neutral cure silicone, so it won't stain delicate stone, granite or marble surfaces, and it's non-corrosive on metals — making it a safe option across a broad range of finishes. It also skins in just 8–10 minutes, so it's quick to tool and doesn't hang around.

Key Features

• High gloss, professional finish – a premium look for bathrooms and wet rooms
• Acetoxy-free, neutral cure – gentler on sensitive materials than standard acetoxy silicones
• Non-staining on stone, granite & marble – safe for natural stone worktops and floors
• Non-corrosive on metals – suitable around metal fittings, frames and fixtures
• Fast skinning time – skins in just 8–10 minutes
• Versatile use – bathrooms, kitchens, external brickwork, glazing, expansion and connection joints