Series 37H | Chem-Prime H.S.

Generic Type Phenolic Alkyd
Common Usage Lead- and chromate-free, fast-drying, corrosion-resistant primer that accepts a variety of high-performance topcoats. Ideally suited for steel fabricators, OEM’s and field applications where "dry-fall" characteristics are desired. Note: Not recommended for immersion.
Colors 77 Red, 77W White, 78 Gray
Topcoats Series 2H, 6, 23, 27, 28, 29, 30, 66, N69, 73, 113, 114, 161, 175, 180, 181, 1074, 1075.
Note: Some systems are not recommended for frequently sweating or continually wet conditions. Reference the applicable topcoat data sheet for additional information. Also, an additional coat of 37H is suggested before applying Series 6, 180 or 181. Contact Tnemec Technical Services for details.
Volume Solids 58.0 ± 2.0% †
Recommended DFT 2.0 to 3.5 mils (50 to 90 microns) per coat.
Curing Time Temperature: 75°F (24°C)
To Handle: 2 hours
To Recoat With Series:
2H, 23, 180, 181 27•, 66•, 161• 28, 29, 30 N69, 73, 113, 114,
175, 1074, 1075
12 hours 48 hours 7 days 30 days

Curing time varies with surface temperature, air movement, humidity and film thickness.
•Note: Allow 37H to cure 14 days if 27, 66 or 161 is to be used as an intermediate coat and topcoated with 73, 175, 1074 or 1075. Then allow 27, 66 or 161 to cure an additional 24 hours before topcoating.
Water Tank Exteriors: Five days or more curing required before filling.
Volatile Organic Compounds Unthinned: 2.91 lbs/gallon (348 grams/litre)
Thinned 4%: 3.07 lbs/gallon (368 grams/litre)
Thinned 9%: 3.27 lbs/gallon (391 grams/litre) †
HAPS Unthinned: 1.37 lbs/gal solids
Thinned 4%: 1.89 lbs/gal solids
Thinned 9%: 2.51 lbs/gal solids
Theoretical Coverage 930 mil sq ft/gal (22.8 m²/L at 25 microns). See APPLICATION for coverage rates. †
Number Of Components One

The products listed below are not exact equivalents. They are only products that you may consider as alternatives in a general sense. Substrate type, condition, temperatures, surface preparation, primer/topcoat selection and intended use are just a few factors that will affect product selection. Please contact your local Tnemec Coatings Consultant for product recommendations.

This ProductPhenolic Alkyd
Volume SolidsRec. DFTV.O.C.# of Components
58.0 ± 2.0% †2.0 to 3.5 mils (50 to 90 microns) per coat.Unthinned: 2.91 lbs/gallon (348 grams/litre)
Thinned 4%: 3.07 lbs/gallon (368 grams/litre)
Thinned 9%: 3.27 lbs/gallon (391 grams/litre) †		One
Series 10 | Tnemec Primers Modified Alkyd
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Volume SolidsRec. DFTV.O.C.# of Components
56.0 ± 2.0% †2.0 to 3.5 mils (50 to 90 microns) per coat.Unthinned: 2.98 lbs/gallon (357 grams/litre)
Thinned 10%: 3.30 lbs/gallon (395 grams/litre) †		One
Series V10 | Tnemec Primers Modified Alkyd
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Volume SolidsRec. DFTV.O.C.# of Components
57 ± 2.0%2.0 to 3.5 mils (50 to 90 microns) per coat.Unthinned: 2.77 lbs/gallon (332 grams/litre)
Thinned 1%: 2.81 lbs/gallon (337 grams/litre)		One
Series 88HS | Azeron H.S. Primer Modified Short Oil Alkyd
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Volume SolidsRec. DFTV.O.C.# of Components
60.0 ± 2.0% †2.0 to 3.5 mils (50 to 90 microns) per coat.Unthinned: 2.69 lbs/gallon (322 grams/litre)
Thinned 2%: 2.78 lbs/gallon (333 grams/litre) †		One

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Chem-Prime H.S. was used on the Georgetown University Law Sports and Recreation facility.