Description. Butyl mastic strip is suitable for use in sealing and waterproofing applications. It is a tacky, temperature stable mastic with excellent conformability and adhesion to metal and all types of cable insulations and jackets, no flowing under high temperature, no cracking under low temperature. Type 1: Some flat strips put up in a release coat in roll form without core. Type 2: Some round strip put up in a release coat in roll form without core. Type 3: Single flat strip put up in a release coat separator in roll form without core.

			Application. • Cable jackets repairing • Moisture sealing for joints of base stations, antennas, and feeder cable • Water seal protection for overhead insulated conductor joints. Size: sizes can be customized according to user needs

Test Property	Requirement	Test Result
Heat resistance,130℃, 168h	No cracking	No cracking
Low temperature flexibility, -40℃	No flowing, cracking, deformation	No flowing, cracking, deformation
Elongation at break (%)	≥400	470
Peel strength(N/10mm)	≥0.2	0.58
Dielectric Strength (MV/m)	≥10	11.4
Sunlight ageing,1000h	No chalking, harden, crack	No chalking, harden, crack
Density (g/cm3)	1.55	1.55

Sealing butyl mastic strip, putty seal belt

Product Description