Following the shot-blasting process, the primer method is applied to the pipe surface which provides adhesion of the surface and the bitumen coating. For the inner part, centrifuge method and for the outer part wrapping method is used. Bitumen is allowed to be absorbed to the glass-fibre tissue and wrapped to the pipe surface.
Used Standarts :
DIN 30673, TS 4356, BS 4147, AWWA C-203, BS 534