Typical Specification of BITUMEN TAPE
Compound                                   Formulated Anticorrosive Bitumenous Compound
                                           Synthetic Substrate such as FRP Tissue reinforced with
Reinforcement
                                           glass fibre mesh.
Separator                                  Plastic (to be removed)
                                           As desired between 1.5 mm to 4.0 mm with tolerance of
Thickness
                                           ± 10%
Width (mm)                                  166, 200, 250, 333 with tolerance of ± 5 mm
                                           1.50 kg / sq. metre / mm. thickness with tolerance of +/-
Average Weight
                                           +/- 10%
Compound :-
Softening Point (R & B), °C (ASTM – D36)
                                           Between 75 & 95
Cone Penetration at 250C (ASTM- D5)
                                           Between      7 & 20
(25°C , 5secs, 10-1mm)
                                           Between    1.1 & 1.3
Specific Gravity (ASTM – D 71)
                                           More than 1.0 N/mm tape width ( i.e. 2.5 kgf/25 mm)
Adhesion Test ( ASTM – D 1000)
Holiday Test Voltage (AWWA- C 203)         Passes at 12 kV
Tensile Strength ( ASTM D 2343)
- In longitudinal direction                2 mm tape = 10.0 N/mm tape width ( i.e 10.1 kgf/cm)
Tensile Strength ( ASTM D 2343)
- In lateral direction                      2 mm tape = 7.84 N/mm tape width (i.e 7.95 kgf/cm)
Di electric Strength ( ASTM D 149)         Passes at 12 kV , 1 minute
                                           In rolls of 10 to 15 metres length for 1.5 mm & 2.0 mm
Supply                                     thick tape and in rolls of 5 to 7 metres length for other
                                           thicknesses. Rolls wound around a paper core.
                                           To be handled carefully and stored vertically under a
Storage
                                           shed away from direct sun & any source of flame.
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