The SHARPIE Modified Silicone M Sealant MSC1-03 is a one-component, medium modulus sealant engineered with Advanced Silicone Hybrid Polymer Technology. Formulated specifically for Class 1 Cleanroom applications (ISO3), this sealant offers non-staining, low dirt pickup, and excellent durability across a wide range of construction and industrial applications—including façades, panels, ACMV ducting, concrete, and metal.

SHARPIE MSC1-01 delivers outstanding UV resistance, elasticity, weatherability, and primer-less adhesion on most porous and non-porous surfaces. It is ideal for professionals seeking a high-performance, paintable, and low-outgassing sealant that performs under extreme environmental conditions.

Key Features

• Cleanroom-Class 1 Compliant (ISO3) – Low outgassing, ideal for semiconductors, pharma, and wafer fabs.
• Excellent Weather Resistance – Withstands UV, temperature extremes, rain, and snow with negligible change in elasticity.
• Non-Bleed & Non-Staining – Safe for natural stone, marble, granite, and sensitive substrates.
• ±50% Joint Movement Capability – Maintains bond strength even in high-movement joints.
• Paintable – Excellent compatibility with most acrylic, stucco, and water-based paints.
• Durable & Flexible – Elastic recovery of 75%, elongation at break up to 400%
• Colors: White, Ivory, Brown, Black, Beige, Gray, Light Gray, Aluminium Gray (custom colors available)

Packaging

• 320 ml plastic cartridges (10 pcs/box)
• 600 ml foil sausages (12 pcs/box)