Stress Grading Mastic

APPLICATIONS:-

Stress grading mastic is used to fill air voids between the ferrule, conductor, insulation and stress control tube to remove or eliminate electrical discharges around the connector area . Stress grading mastic also provide smooth surface for stress control tubes and distribute the voltage evenly around the connector. To cover the sharp edges of armour and other metallic parts and provide cushion.

Cinque Terre
CHARACTERISTIC TYPE OF TEST REQUIREMENT TEST METHOD
PHYSICAL PROPERTIES
Colour Routine Brown Visual
Dimensions Routine W 1 :25+ 5 Measurement
Needle penetraton Routing 25(Min.) ASTM E - 5
Softening Point Routing 125 c(Min.) ASTM E - 28
Packing Routing Packed in Release Visual
MECHANICAL PROPERTIES
Shear strength Routine 3 N/Sq.cm(Min.) TP/QA/63
Elongation Routine 75% width reducing with out breakage Tensile Test
ELECTRICAL TEST
Volume resistivity Routine 1 * 10 ohm cm(Min.) ASTM D 257