Densyl Mastic 3KG

Densyl Mastic is a self-supporting non-setting mastic used for waterproofing and sealing service entries and ducts. It is applied around flanges, mechanical joints, and valves to create a contour for tape application.

• The description claims 60+ years of proven use by public utility companies.
• The description claims it is suitable for sealing the annular space between carrier pipes and sleeves.
• The description claims it provides an effective gas and water-tight seal capable of accommodating movement.