Series 61


Generic Type

Cycloaliphatic Amine Epoxy

Common Usage

Tightly cross-linked epoxy with excellent corrosion and chemical resistance. Principally used for immersion services, including fuel and crude oil storage, fuel pipelines, pressure vessels, chemical containment and wastewater treatment.

Special Qualifications

A two-coat system of Series 61 at 4.0 to 6.0 dry mils (100-150 dry microns) per coat passes the performance requirements of MIL-PRF-4556F. Series 61 conforms to API 652 for lining above ground storage tanks.

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Volume Solids

82.0 ± 2.0% (mixed) †


Unthinned: 1.53 lbs/gal solids
Thinned 10%: 2.42 lbs/gal solids


Note: Series 61 can be topcoated with select Tank Armor linings depending on service conditions. Contact Tnemec Technical Service for recommendations.

Note: To minimize pinhole formation in the topcoat, it is recommended that the concrete substrate be fully resurfaced, and/or primed prior to topcoat application.

Volatile Organic Compounds

EPA Method 24
Unthinned: 0.36 lbs/gallon (45 grams/litre)
Thinned 6%: 0.71 lbs/gallon (85 grams/litre)
Thinned 10%: 1.21 lbs/gallon (145 grams/litre) †



Curing Time

Temperature To Handle To Recoat Immersion
75°F (24°C) at 4.0 mils 100 microns) 6 hours 16-18 hours• 5 to 7 days
75°F (24°C) at 12.0 mils 305 microns) 11 hours 16-18 hours• 5 to 7 days

Curing time varies with surface temperature, air movement, humidity, and film thickness.
• Maximum recoat time with itself is 7 days. Extended maximum recoat time of 14 days is allowed when used as a primer for Tank Armor products. If recoat time is exceeded, the coated surface must be scarified before topcoating.

Number of Components

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

Recommended DFT

  1. For JP-4, JP-5, JP-8, Aviation Gas and Jet A-1: 4.0 to 6.0 mils (100 to 150 microns) per coat (minimum of two coats).
  2. Most Other Applications: 8.0 to 12.0 mils (205 to 305 microns) per coat (minimum of two coats). Contact your Tnemec representative for specific recommendations.


Steel: Self-priming
Concrete: Self-priming or Series 215, 217, N218
CMU: Series 215, N218

Theoretical Coverage

1,315 mil sq ft/gal (32.3 m²/L at 25 microns). See APPLICATION for coverage rates. †

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