Introduction: 

      DH-611 spray polyurea pipeline anticorrosive material is a polyurea elastomer material composed of isocyanate semi-prepolymer, amine chain extender, polyether, pigment, auxiliary agent and other main raw materials.
      DH-611 pipeline anticorrosion material is specially designed for pipeline inner wall, outer wall anticorrosion and so on. The pipeline processed with DH-611 pipeline anticorrosion material can obtain the super long service life.

Purpose:

      DH-611 pipeline anticorrosion material is mainly used for the anticorrosion of inner and outer wall of sewage pipeline, oil pipeline, gas pipeline, overhead pipe, direct buried pipe and other pipelines. It can also be used for corrosion protection of various metal structures.

Performance indicators:

Solid content	100%
Gel time	30 seconds
Tensile strength	25MPa
Tear strength	65KN/m
Elongation at break	30%
Hardness, Shore D	60 ~ 75
Adhesion, (pull out method)	≥8MPa
Impact resistance	1.5kg. M
Electrical strength	20kv/mm
Water resistance	no corrosion, no blister,no shedding
Resistance to liquid media	no corrosion, no blister, no shedding
Color	various colors are adjustable
Density, g/cm3	1.02
Recommended thickness	1-3mm

Substrate processing
       The metal substrate should be sandblasted to Sa2.5 level to remove the rust and burrs of the substrate. The substrate should be clean and  avoid oil stains and impurities and water on the substrate.

The coating method
      High temperature and high pressure spraying equipment for polyurea are used  for substrate.

Supporting materials
      If there are holes in the metal substrate, They should be repaired with DX-XN repairing putty before all others.
      In multi-pass spraying, if the interval time between each passes is so long that it can exceed 3 hours , the surface needs to be polished, and then the dh-dq001 layer adhesive is applied.
      If the polyurea material is damaged, manual repair material dh-x100 can be used.