De-oxidizing Weldable Primer
Source: Tempil, Inc.
Bloxide is a pre-weld primer that is brushed directly on pipe sections and other critical weld joints to
Tempil, Inc.a pre-weld primer that is brushed directly on pipe sections and other critical weld joints to improve weld quality. Aluminum flake in Bloxide serves as a de-oxidizer. Oxygen, which has an affinity for aluminum, forms aluminum oxide, eliminating pinholing and porosity. Other rust preventive coatings, including coal tar primers, have to be cleaned off to prevent contamination in the weld joint. The compound can then be brushed, dipped, or sprayed at the original weld preparation, and prevent rust during the time before actual welding occurs. It may be welded over immediately after the coating has been applied.
The weldable primer withstands extreme working temperatures as high as 800 F. Therefore, it is suitable for high temperature work in refineries and chemical plants. It has been found to be effective on all steels. It is free from lead, sulfur, zinc, cadmium, mercury and halogens. This halogen-free characteristic has particular application to industry and government standards, including NACE, AWWA, ASTM, NAPCA, SSPC, DOT and the Utilities Nuclear Coating Work Committee.
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