MIL-P-46105 Primer Coating, Weld-Through, Zinc-Rich

This specification covers one type of ready-mixed, single-package, epoxy-based, zinc-rich primer for use on ferrous metal surfaces prior to spot welding. This specification is canceled. Superseded by SSPC-PAINT30.

SKU: 46105 Category:

Product Description

A high zinc content, heat curable epoxy primer formulated for excellent characteristics over a wide range of chemical and atmospheric conditions. Typical uses: Underground pipes, off shore drilling rigs (above splash zone), water lines, refineries, structural steel and severe corrosive and chemical environments.

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Technical Data Sheet (TDS)- MIL-P-46105

Also Known As:

» MIL-P-46105
» QPL-46105


SSPC-SP6 Commercial Blast or SSPC-SP10 Near White Blast. If drying time prior to recoating exceeds 48 hours at temperatures above 70 Degrees F, the dry coating must be brush-sandblasted to achieve proper adhesion of new coat. Surface must be clean and free of all oil, grease and foreign material. Badly rusted or pitted steel should be cleaned by commercial sandblasting (SSPC-SP6) and primed the same day.



Spray is the best method of application. Use air spray with agitated pressure pot or airless spray with continuous material mixing setup. Use brush for touch up and small areas only. Reduce with MIL-T-81772B Ty. III Thinner or TT-X-916 Xylene, approximately 1 pint of thinner to 1 gallon of mixed primer. Allow material to flash dry for 30-60 minutes, place in a pre-heated oven for 45-60 minutes at 250 degrees Fahrenheit.