Series FC20 | Pota-Pox

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.
Colors 1211 Red, 1255 Beige, 11WH White, 15BL Tank White, 39BL Delft Blue.
Note: Epoxies chalk with extended exposure to sunlight. Lack of ventilation, incomplete mixing, miscatalyzation or the use of heaters that emit carbon dioxide and carbon monoxide during application and initial stages of curing may cause yellowing to occur.
Primers 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.
Topcoats Interior: Series 20, FC20, N140, N140F, 264, 265
Exterior: Series 20, FC20, 66, N69, 73, 104, N140, N140F, 161, 175, 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.
Volume Solids 58.0 ± 2.0% (mixed) †
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.
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.
Volatile Organic Compounds Unthinned: 2.94 lbs/gallon (352 grams/litre)
Thinned 10%: 3.30 lbs/gallon (395 grams/litre) †
Theoretical Coverage 930 mil sq ft/gal (22.8 m²/L at 25 microns). See APPLICATION for coverage rates. †
Number of Components Two: Part A and Part B

The products listed below are not exact equivalents. They are only products that you may consider as alternatives in a general sense. Substrate type, condition, temperatures, surface preparation, primer/topcoat selection and intended use are just a few factors that will affect product selection. Please contact your local Tnemec Coatings Consultant for product recommendations.

This ProductPolyamide Epoxy
Volume SolidsRec. DFTV.O.C.# of Components
58.0 ± 2.0% (mixed) †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.Unthinned: 2.94 lbs/gallon (352 grams/litre)
Thinned 10%: 3.30 lbs/gallon (395 grams/litre) †		Two: Part A and Part B
Series N140F | Pota-Pox Plus Polyamidoamine Epoxy
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Volume SolidsRec. DFTV.O.C.# of Components
68.0 ± 2.0% (mixed) †2.0 to 10.0 mils (50 to 225 microns) per coat. Note: MIL-PRF-4556F applications require two coats at 4.0-6.0 mils (100-150 microns) per coat. Otherwise, the number of coats and thickness requirements will vary with substrate, application method and exposure. Contact your Tnemec representative.N140F: Unthinned: 2.3 lbs/gallon (273 grams/litre) V140F: Unthinned: 1.84 lbs/gallon (221 grams/litre)
Thinned 5% (#60): 2.5 lbs/gallon (299 grams/litre) Thinned 4.5% (#4): 2.08 lbs/gallon (250 grams/litre)
Thinned 10% (#4): 2.7 lbs/gallon (323 grams/litre) †		Two: Part A (amine) and Part B (epoxy) — One (Part A) to one (Part B) by volume.

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Pota-Pox on the interior of a water storage tank

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