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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Number of Components
Two: Three Part A (epoxy) to One Part B (amine)
Primers
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.
Volume Solids
100% (mixed)
Volatile Organic Compounds
0.26 lbs/gallon (32 grams/litre)
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.
HAPS
0.09 lbs/gal solids
Finish
Semi-gloss
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.
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