SPECIFICATION OF BITUMEN ENAMEL

Specification of bitumen enamel grade A,B and C

Test

Requirement Test Method
Grade  A Grade  B Grade  C

Filler content , by ignition

25-35 25-35 45-55 BS 4147:App. B

Density @ 25°C, g/cm3

1.2-1.4 1.2-1.4 1.4-1.65 BS 4147

Softening Point (ring &ball),

100-120 115-130 120-150 BS 2000 part 58

Penetration@25°C, 10-1mm

10-20 5-17 5-15 BS 2000: part 49

Flash Point (Cleveland open cup),

250 260 260 BS 4689

Sa g, max, min

@60°C, 24h

@75°C, 24h

Max. 1.5 – – Max.1.5 – Max. 1.5 BS 4147: App. E –

Bend @ 0°C,

min 20 min 15 min 10 BS 4147: App. F

Peel initial& delayed,

Max; mm

@30°C

@40°C

@50°C

@60°C

3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 – 3.0 3.0 3.0 BS 4147: – – – –

Impact, disbanded

BS 4147: App. G

Our approvals

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