Organic Zinc Rich Primer for steel that combines the resistance properties of epoxy and the galvanic protection of zinc.

Type:

Pure zinc epoxy base one package primer.

Intended uses:

Coastal and marine exposures, refineries, water treatment plants, chemical plants, pulp and paper facilities, and general heavy maintenance. Touch up and repair of inorganic zinc coatings and galvanized metal.

Limitations:

Not recommended for immersion in acids or alkalis, continuous immersion in fresh or salt water untopcoated or immersion in solvents. Must be topcoated for atmospheric service other than pH range of 6.5-8.0.

Topcoats:

Catalyzed epoxies, coal tar epoxy, vinyls, phenolics, acrylics, chlorinated rubbers and urethanes.

Specifications:

Weight/gallon: 24.0± .2#
Solids by weight: 85± 2%
Solids by volume: 51± 1%
VOC: 3.45 ± 0.05
Flash Point: Below 80° F T.C.C
Shelf Life: 1 year
Non-sag: 16 mils wet minimum

Coverage:

752 sq. ft./gallon at 1mil(s) dry (90% recovery)
Dry film thickness: 2.0-3.0 mils
Zinc content: 91% zinc as metal in dry film

Properties:

Drying time:
to handle: 30-40 minutes @ 70° F
to topcoat: 2-3 hours @ 70° F
Temperature Tolerance:
continuous: 250° F
intermittent: 450° F
Adhesion: ASTM-3359
Rate 5B (no tape off)
Impact: Pass 20 in/lbs reverse
Pass 80 in/lbs direct
Bend Test: ASTM D-522
Pass 1/4 in. Mandrel
Elongation 15.8%
Weldable: Yes
USDA Status: Chemically acceptable for incidental food contact.
Salt Fog: Pass 1000 hours ASTM B117
Humidity: Pass 500 hours ASTM D2247

Meets the performance requirements of the following specifications:

DOD-P-21035 Zinc Rich Galvanize Repair
MIL-P-26915 Type I Class A Zinc Rich Primer
MIL-P-46105 Weld Through Zinc Rich Primer
MIL-P-21035-A - High Zinc Dust Content, Galvanized Repair

Applciation Instructions:

Surface Preparation:

New Steel - Surface must be dry and free of contamination. Remove all weld spatter and grind all rough welds and sharp edges to smooth contour. For severe exposure (immersion, chemical, etc) near-white blast clean per SSPC SP 10-63T. For other exposures blast clean per SSPC SP 6-63 to a maximum profile of 1.5 mils.

Previously Painted Surfaces - Must be free of oil, grease, or other contamination. Best results, spot blast exposed areas to be printed. Power tool brushings may be used for minor touch up.

Spraying:

Surface shall be dry, 5° F above dew point with air temperatures greater than 50° F. Must be free of rust bloom. For air atomized spray, reduce 10-20% with 100 flash Aromatic Solvent, or Xylol for improved atomization. Fluid tips of .070" and air caps delivering 9-10 CFM at 30# PSI are acceptable. A 3/8" to 1/2" material hose is recommended.

For airless spray, use .023-.029 tips with 900-1800# fluid pressure. Material should be kept under constant slow speed agitation during use. Double lap all welds, seams, corners and edges to insure proper film thickness. Make even, parallel passes with 50% overlap to provide uniformity.

Safety:

Proper precautions should be taken to assure operator protection, including explosion-proof electrical fixtures when applied indoors.

The above technical data is accurate to the best of our knowledge. No warranty is expressed or implied as application methods and conditions and intended use is beyond our control.