Series FC20

Pota-Pox (Fast Cure)

Generic Type

Polyamide Epoxy

Common Usage

Fast-curing protective coating for use in steel and concrete potable water storage facilities. Contact your Tnemec representative for other systems and additional information on potential uses.

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Volume Solids

58.0 ± 2.0% (mixed) †

Number of Components

Two: Part A and Part B


Self-priming, 20, 91-H²O, 94-H²O, N140, N140F. Note: 91-H²O is ANSI/NSF Std. 61 certified by UL as a primer for Series FC20. Refer to the 91-H²O product data sheet for additional information.

Theoretical Coverage

930 mil sq ft/gal (22.8 m²/L at 25 microns). See APPLICATION for coverage rates. †

Volatile Organic Compounds

Unthinned: 2.94 lbs/gallon (352 grams/litre)
Thinned 10%: 3.30 lbs/gallon (395 grams/litre) †


Interior: Series 20, FC20, N140, N140F, 264, 265
Exterior: Series 20, FC20, 66, N69, 73, 104, N140, N140F, 161, 700, 701, 1074, 1074U, 1075, 1075U. Note: When topcoating with Series 700 or 701, an intermediate coat of Series 73 or 1075 is required.
Refer to COLORS on applicable topcoat data sheets for additional information.

Curing Time

Temperature To Touch To Handle To Recoat Immersion
75°F (24°C) 1 hour 2 hours 3 hours 6 days
65°F (18°C) 2 hours 4 hours 5-6 hours 8 days
55°F (13°C) 3-4 hours 6-8 hours 10-12 hours 12 days
45°F (7°C) 6-7 hours 12-14 hours 16-18 hours 20 days
35°F (2°C) 8-10 hours 16-18 hours 20-22 hours 25 days

Curing time varies with surface temperature, air movement, humidity and film thickness.

Recommended DFT

2.0 to 6.0 mils (50 to 150 microns) per coat. Note: Number of coats and thickness requirements will vary with substrate, application method and exposure. Contact your Tnemec representative.

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