Series 66HS

Hi-Build Epoxoline

Product is made to order for specific projects. Contact your Tnemec Representative for additional information.

Generic Type

Polyamide Epoxy

Common Usage

A high-solids, low VOC, pure polyamide epoxy that offers exceptional protection to a variety of substrates in atmospheric and immersion environments. Applied as a primer, intermediate, or topcoat, this versatile coating also accepts a wide-range of finish coats, allowing for a coating system tailored to specific exposure conditions.

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    This product is available in 518 colors.

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Steel: Self-priming or Series 1, 20HS, FC20HS, 27, 27WB, 90-97, 90-98, 90E-92, 90G-1K97, 91-H2O, 94-H2O, 394, V530, 161HS
Concrete: Self-priming, 20HS, FC20HS, 161HS
CMU: Self-priming, 130, 1254

Curing Time

Temperature To Touch To Handle To Recoat Immersion
95°F (35°C) 1 hour 3 hours 6-7 hours 7 days
75°F (24°C) 2 hours 8 hours 12-16 hours 7 days
55°F (13°C) 4 hours 22-24 hours 30-34 hours 12-14 days

Curing time varies with surface temperature, air movement, humidity and film thickness. Note: For faster curing and low temperature applications, add No. 44-705 Epoxy Accelerator, see separate product data sheet for cure information.
Ventilation: When used as a tank lining or in enclosed areas, provide adequate ventilation during application and cure.




46H-413, 27WB, 30, 66HS, 72, 73, 104, 113, 114, 115, 141, 161HS, 262, 265, 290, 291, 740, 750, 1026, 1028, 1029, 1070, 1070V, 1071, 1071V, 1072, 1072V, 1074, 1074U, 1075, 1075U, 1080, 1081, 1095. Refer to COLORS on applicable topcoat data sheets for additional information. Note: When topcoating Series 66HS, the following maximum recoat times apply: with 262 or 265, 7 days; with 740 or 750, 21 days; with 1095, 30 days; with itself, 46H-413, 27WB, 104, 113, 114, 141, 161HS, 290, 291, 1028, 1029, 1070, 1070V, 1071, 1071V, 1072, 1072V, 1080 or 1081, 60 days; with 72, 73, 1074, 1074U, 1075 or 1075U, 90 days. Scarify the Series 66HS surface before topcoating if maximum recoat time has elapsed.


215, 217, 218

Recommended DFT

2.0 to 10.0 mils (50 to 254 microns) per coat.
Note: Number of coats and thickness requirements will vary with substrate, application method and exposure. Contact your Tnemec representative.


Unthinned: 1.17 lbs/gal solids
Thinned 10% (No. 4 Thinner): 1.88 lbs/gal solids
Thinned 20% (No. 4 Thinner): 2.60 lbs/gal solids

Volatile Organic Compounds

Unthinned: 1.54 lbs/gallon (184 grams/litre)
Thinned 10% (No. 4 Thinner): 2.02 lbs/gallon (243 grams/litre)
Thinned 20% (No. 4 Thinner): 2.43 lbs/gallon (292 grams/litre)

Volume Solids

78% ± 2.0% (mixed) †

Theoretical Coverage

1,249 mil sq ft/gal (30.7 m²/L at 25 microns). See APPLICATION for coverage rates. †

Number of Components

Two: Part A (epoxy) and Part B (polyamide)

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