BLACK MASTIC TAPE
    Black mastic tape is used to cover the sharp edges of armour and other metallic parts and provide cushion for heat shrink materials. It also used as a barrier for prevention of penetration of water in to terminations and joints as it fills the gap between the interphases.
CHARACTERISTIC TYPE OF TEST REQUIREMENT TEST METHOD
PHYSICAL PROPERTIES
COLOUR Routine BLACK VISUAL
Dimensions Routine 400*35*2(MIN.) Measurement
Needle Penetration Routing 70 - 130 Units/10sec. ASTM D - 5
Softening Point Routing 100 °C(min.) ASTM E - 28
Packing Routing Polybag Visual
MECHANICAL PROPERTIES
Shear Strength Routing 2 n/sq.cm (Min.) ASTM D 1002
ELECTRICAL TEST