What is?


What is pipe coating bitumen enamel?

We are producer of bitumen enamel is a pipe coating products applied durable coating based on bitumen enamel which is a type of modified bitumen that has been successfully used for many years for corrosion protection of steel pipes.

Advantage of bitumen enamel.

Bitumen enamel has excellent adhesion to steel provides a track record of long term corrosion resistance. Bitumen enamel used for pipelines designed to different application such as water, gas, oil or any other fluid when the continuous temperature of the fluid being transported does not exceed 70°C (I 58°F)! Bitumen enamel is safer and more environmentally friendly system then coal tar enamel because of acidity of tar. Bitumen enamel pipe coatings with varying grades of bitumen enamel and inner and outer wraps along with a thickness as per your design specification. The enamel can be applied to various pipe diameters from 90 mm (3.5\”) to over 1200 mm (48\”). Enamel pipe coating bitumen based material is using for many years across the world.

How to use bitumen enamel?

BITUMEN ENAMEL should be broken up into small pieces and put into the kettle. Heat should be applied slowly until there is a quantity of melted Enamel on the bottom of the kettle. Kettles  used  previously  for  bitumen  should  be  thoroughly  cleaned  before  use. The quantity of enamel remaining in the kettle from previous use should not exceed 10% of the fresh charge. The maximum temperature  of   Enamel  in  the  kettle  should  never  exceed  250 C  and  the  Enamel  in  the  kettle  should  be  stirred  constantly during the use. The normal application temperature of Enamel is related to its grade but it is normally between 220-240 C. Enamel above this temperature should be rejected. Enamel should not be applied to the primer pipe when the metal temperature is below 7 C and care should be taken for the pipe is free from dust, oil and moisture.

Specification of bitumen enamel.

Characteristics Grade A Grade B Grade C Test method
Filler content by ignition, mass% 25-35 25-35 45-55 BS 4147 Appendix B
Density @ 25 C.g/cm3 1.2-1.4 1.2-1.4 1.4-1.65 A BS 4147 C ppendix
Softening Point (ring & ball),  C 100-120 115-130 120-150 BS 2000: Part 58
Penetration @ 25 C. 10-1 mm 10-20 5-17 5-15 BS 2000: Part 49
Flash point (Cleveland open Cup), min, C 250 260 260 BS 4689
Sag,max,mm @60 C, 24h @75 C, 24h 1.5 – – 1.5 – 1.5 BS 4147: Appendix E
Bend @ 0 C, min, Mm 20 15 10 BS 4147: Appendix F
Impact, disbanded area, max,mm 2 @ 0 C @25 C 15000 – – 6500 – 6500 BS 4147: Appendix G
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: Appendix H

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