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. Note: Not recommended for immersion.

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Colors

  • 37H-078 Gray
  • 37H-077 Red

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Volume Solids

56.0 ± 2.0% †

Number of Components

One

Recommended DFT

2.0 to 3.5 mils (50 to 90 microns) per coat.

Theoretical Coverage

898 mil sq ft/gal (22.0 m²/L at 25 microns). See APPLICATION for coverage rates. †

Curing Time

Temperature: 75°F (24°C)
To Handle: 30 minutes

To Recoat With Series:

| Series 2H, 2HS, 37H, 43-36 || Series 113, 114, 115, V115, 180, 181, 1026, 1028, 1029 || Series 27•, 66•, L69, L69F, N69, N69F, V69, V69F, 73, 161•,1074, 1074U, 1075, 1075U, 1094, 1095, 1096 |
| 16 hours || 24 hours || 24 hours |
---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, 1074, 1074U, 1075 or 1075U. 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.

Topcoats

Series 2H, 2HS, 27, 37H, 43-36, 66, L69, L69F, N69, N69F, V69, V69F, 73, 113, 114, 115, V115, 161, 180, 181, 1026, 1028, 1029, 1074, 1074U, 1075, 1075U, 1094, 1095, 1096.
Note: Allow Series 1026 to cure one week before topcoating. 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 180 or 181. Contact Tnemec Technical Services for details.

Volatile Organic Compounds

Unthinned: 2.75 lbs/gallon (330 grams/litre)
Thinned 4% (No. 2 Thinner): 2.94 lbs/gallon (352 grams/litre)
Thinned 9% (No. 2 Thinner): 3.15 lbs/gallon (377 grams/litre)

HAPS

Unthinned: 2.20 lbs/gal solids
Thinned 4% (No. 2 Thinner): 2.72 lbs/gal solids
Thinned 9% (No. 2 Thinner): 3.36 lbs/gal solids

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