Aromatic Urethane, Zinc-Rich
A single-component, moisture-cured, zinc-rich primer for steel structures, including the interior and exterior of steel potable water tanks. Provides outstanding long-term corrosion resistance when used as a primer in conjunction with other Tnemec coatings. Series 94-H2O has no maximum recoat time, cures quickly and offers rapid recoat at surface temperatures down to 35°F (2°C). Note: When used in conjunction with cathodic protection, anodes or impressed current systems should not provide current demand more negative than –1.05 volts relative to a copper–copper sulfate reference electrode half-cell.
Certified (with or without 44-710 Urethane Accelerator) in accordance with ANSI/NSF/CAN Std. 61 and the extraction requirements of NSF/ANSI/CAN 600 and is qualified for use on interior potable water tanks of 500 gallons or greater. Topcoating with Std. 61 certified Tnemec coatings is required. Contact your Tnemec representative for specific recommendations. Reference "Search Listings" section of the NSF website at www.nsf.org for details on the maximum allowable DFT. Meets zinc-rich primer requirements of AWWA D102-17 Standard for Inside System No. 3, 5 & 6 and Outside System No. 3, 4 & 6. Series 94-H2O uses a zinc pigment which meets the requirements of ASTM D 520 Type III and contains less than .002% lead.
Series 94-H2O was tested in accordance with, and passed, the California Dept. of Public Health (CDPH) Standard Method v1.2 and meets the requirements of LEED v4.1 Low-Emitting Materials, Collaborative for High Performance Schools-Paints & Coatings, Living Building Challenge Materials Petal 10, and WELL Building Standard v2 X06 VOC Restrictions.View more product details
Product Data Sheets
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Number of Components
|Temperature †||To Handle||To Recoat|
|75°F (24°C)||2 hours||8 hours|
|55°F (11°C)||4 hours||12 hours|
|35°F (2°C)||6 hours||16 hours|
---† 50% relative humidity. Note: Refer to product listings on www.nsf.org for specific potable water return to service information. Curing time will vary with surface temperature, humidity and film thickness. Ventilation: When used in enclosed areas, provide adequate ventilation during application and cure.
Note: For faster curing, low humidity and low-temperature applications, add No. 44-710 Urethane Accelerator (see separate product data sheet). Note: For cure times to immersion service, reference the specified Tnemec interior topcoat product data sheet.
Unthinned: 1.68 lbs/gal solids
Thinned 15% (No. 49 Thinner): 1.68 lbs/gal solids
Thinned 10% (No. 3 Thinner): 1.72 lbs/gal solids
Thinned 10% (No. 2 Thinner): 2.84 lbs/gal solids
2.5 to 3.5 mils (65 to 90 microns) per coat.
Interior: Series 20, FC20, 22, FC22, L140, L140F, N140, N140F, V140, V140F, 141, 215, 406.
Exterior: Series 27WB, 66, L69, L69F, N69, N69F, 72, 73, 115, V115, 156, 161, 215, 1026, 1028, 1029, 1074, 1074U, 1075, 1075U, 1080, 1081, 1094, 1095, 1096. Note: Certain topcoat colors may not provide one-coat hiding depending on method of application. Contact your Tnemec representative. Note: Series 94-H2O must be exterior exposed for three days prior to topcoating with Series 1028 or 1029. Note: Series 94-H2O must be exterior exposed for one day prior to topcoating with Series 27WB.
Volatile Organic Compounds
Unthinned: 0.74 lbs/gallon (89 grams/litre)
Thinned 15% (No. 49 Thinner): 0.74 lbs/gallon (89 grams/litre)
Thinned 10% (No. 3 Thinner): 1.57 lbs/gallon (188 grams/litre)
Thinned 10% (No. 2 Thinner): 1.56 lbs/gallon (187 grams/litre)
62.0 ± 2.0% (mixed)
996 mil sq ft/gal (24.4 m²/L at 25 microns). See APPLICATION for coverage rates.
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