Vent-Mastic

Vent-Mastic is a single-component, butyl-based sealant and filler.

Summary of properties

• Excellent adhesion to most construction materials.
• Good resistance to weathering.
• Good workability.
• Can be painted after 24 hours.

Vent-Mastic is suitable for use in:

• sheet metal joints;
• ventilation duct and other joints;
• perimeter sealing of doors and windows;
• gaps and cracks in bricks, wood, etc.

Limitations

Vent-Mastic is not recommended for use in areas at risk of high movement and mechanical loading.

Colour

• Grey

Packaging

• 310 ml cartridge (12 per carton)

Properties (typical values)

• Specific gravity (+25 °C): 1.70
• Service temperature range: -20 °C to +80 °C
• Movement capability: ± 7%
• Skinning time: 24 hours
• Joint dimensions: min 5 mm, max 20 mm
• Depth to width ratio: recommended: joint depth = joint width