liquid rubber primer coat
The anti corrosion adhesive systems consist of butyl based elastomers blended with polymeric resins dissolved in an organic solvent system. They can be used for machine or hand applications and provide excellent adhesion to the pipe substrate and cathodic
Theliquid rubber primer coat shall be stored in accordance with regulations that govern hazardous material storage.
Primer inventory shall rotate on a first in - first out basis. Primer containers shall be marked with receiving date.
liquid rubber primer coat is applied to the pipe steel surface with a brush or paint roller to a wet thickness of no less
than two (2) mils (65 microns) and no greater than 3 mils (76 microns). The primer shall be thoroughly mixed prior to application on pipe. Primer container shall remain covered when not in use.
The primer coat shall cover the entire exposed steel surface including the raised circumferential weld
bead and overlap onto the mill applied primary coating system by a minimum of 4 inches (10.16
cm).
The primer coat shall be dry to touch prior to the application of the joint wraps.
The primer coat shall not be diluted. Primer coat cans shall remain covered when not in use to avoid
solvent evaporation and contamination.
