Pasco Hypersil 912 Silicone Sealant

Pasco Hypersil 912 is a high-performance, 100% neutral-cure sanitary silicone sealant for showers, baths, basins, sinks, kitchens and laundries. It cures to form a tough, flexible waterproof seal with added mould and mildew resistance for damp and steamy environments.

Hypersil 912 is particularly useful where colour selection matters. Pasco offers the product in a broad range of whites, greys, warm neutrals, darker tones and translucent finishes, making it easier to coordinate the silicone with tiles, grout, benchtops, cabinetry and wet-area fixtures.

Sanitary silicone for showers, kitchens and stainless steel

Use Hypersil 912 around shower and bath joints, basins, sinks, kitchen and laundry interfaces and stainless-steel benches. Its neutral cure will not corrode compatible metals, making it a practical choice where tiled surfaces meet stainless steel, aluminium or other wet-area fittings.

Why choose Pasco Hypersil 912?

• Mould and mildew resistant: designed for damp, steamy and high-humidity areas.
• 100% neutral-cure silicone: non-corrosive to compatible metals and suitable for mixed wet-area substrates.
• ±25% movement capability: accommodates normal joint movement.
• Low odour: well suited to bathrooms, kitchens and occupied interiors.
• Excellent weathering and long-term durability: suitable for demanding interior and compatible exterior applications.
• Low VOC: complies with a 5-Green Star rating threshold of less than 5% or 50 g/L VOC.
• Broad colour range: a strong choice where matching the sanitary bead to tile, grout or fixtures matters.

Where Hypersil 912 fits in the sanitary range

Choose Hypersil 912 when you want an established Pasco neutral-cure sanitary silicone with a particularly broad architectural colour range for bathrooms, kitchens, laundries and stainless-steel installations.

For an Adheseal sanitary silicone with broad colour selection, compare S100. For a deliberately low-sheen finish, choose Matt Seal S-350.

Application and limitations

Apply to clean, dry and sound surfaces and tool the bead before the silicone skins. Use appropriate backing material where joint depth needs to be controlled and test adhesion, staining and compatibility on variable substrates before full installation.

• Do not use for structural glazing.
• Do not use on polycarbonate plastic sheeting.
• Do not use in joints subject to permanent water immersion or in aquariums.
• Do not use on trafficable joints subject to foot abrasion.
• Do not use on bituminous substrates or incompatible rubber products that may bleed plasticiser.
• Hypersil 912 is not paintable.

Compare the full Sanitary Silicone Sealants range.