Mcr Sil-MU

Calcium silicate gasket reinforced with fiberglass
mcr Sil-MU is an intumescent gasket made of hydrated calcium silicate reinforced with fiberglass, coated on both sides with an epoxy resin layer.
Active thermal protection at high temperatures
It activates at temperatures between 100°C and 120°C, forming a rigid, non-combustible foam that provides a high level of thermal insulation.

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Sil-MU – Intumescent calcium silicate gasket for fire protection

mcr Sil-MU is an intumescent gasket made of hydrated calcium silicate reinforced with fiberglass, coated on both sides with an epoxy resin layer.

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Application

In fire doors and fire protection installations

In fire doors and fire protection installations

The mcr Sil-MU gasket is designed for use wherever reduced mechanical strength is acceptable – e.g., wooden, steel, and aluminum fire doors, fire doors for special applications, as well as in ventilation and smoke extraction ducts (for sealing inspection covers), cable ducts, and for sealing windows, façades, and other elements.

Characteristics

Activates at temperatures between 100°C and 120°C, forming a rigid, non-combustible foam that provides a high level of thermal insulation. Expands in one direction to at least five times its initial thickness

The expansion pressure generated can reach up to 1.5 N/mm², providing an effective barrier against flames, smoke, and hot gases along the element perimeter where the gasket is installed.

Technical specification

Product type	Intumescent gasket
Reaction to fire	A2 non-combustible
Dimensions	30 × 2 × 2100 mm
Expansion height (10 min at 550°C under load)	>5 × initial height
Expansion pressure	≥0,9 N/mm²
Thermal conductivity (at 20°C)	0,8 W/mK
Water content	25% – 40% by weight
Grammage (average)	3,0 kg/m²