Series 307

Tank Armor

Generic Type

Polyamine Epoxy

Common Usage

A versatile, high-build, epoxy internal lining applied in a single coat by plural component equipment. Its enhanced chemical resistance and physical properties make it an excellent, cost-effective choice for corrosion control in tanks handling brine water, drilling mud, mild temperature backflow, and a wide range of chemicals used in the oil and gas industry. Series 307 contains micro-fiber reinforcement for enhanced film integrity.

Special Qualifications

Series 307 conforms to API 652 for lining above ground storage tanks.

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Curing Time

Temperature To Touch To Handle Immersion
95°F (35°C) 1 hour 2-3 hours 1 day
75°F (24°C) 1 hour 4-5 hours 3 days
55°F (13°C) 1.5 hours 13-15 hours 5 days

Note: The above cure schedule provides for immersion service, temporary or full storage of recommended chemical exposures below 100°F (37°C). For temperature service >100°F (37°C), consult your Tnemec representative or Tnemec Technical Services. Note: If more than 7 days have elapsed between coats, the Series 307 coated surface must be mechanically abraded before topcoating.


0.09 lbs/gal solids

Volume Solids

100% (mixed)


Self-priming or Series 61, N69F, 161. Note: For surfaces with light to moderate pitting, priming the surface prior to the Series 307 application may help to prevent holidays in the cured film. Note: The following maximum recoat times apply when topcoating with Series 307; Series 61, 14 days; Series N69F and 161, 30 days. If this time limit is exceeded, or if Series N69F or 161 is exterior exposed more than 14 days, the primer must be uniformly scarified prior to topcoating. Note: Series N69F or 161 are for crude oil service only.

Volatile Organic Compounds

0.26 lbs/gallon (32 grams/litre)

Number of Components

Two: Three Part A (epoxy) to One Part B (amine)

Theoretical Coverage

1,604 mil sq ft/gal (39.4 m²/L at 25 microns). See APPLICATION for coverage rates.



Recommended DFT

20.0 to 50.0 mils (500 to 1,270 microns), one coat with multiple passes. Note: Series 307 can be applied to an optional high build thickness of 60.0 mils in a single coat to horizontal surfaces.

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