Series 20
Pota-Pox
This product has been discontinued. Please contact your local sales representative for further assistance.
Generic Type
Polyamide Epoxy
Common Usage
Industry standard for potable water epoxy coatings for nearly 40 years. Known for its forgiving application characteristics in adverse and varied conditions, and for its benchmark performance.
Special Qualifications
Certified by NSF International in accordance with ANSI/NSF Std. 61. Ambient air cured Series 20 is qualified for use on the interior of potable water storage tanks and reservoirs of 6,000 gallons (22,712 L) capacity or greater. Reference Tnemec's certified product listing at www.nsf.org for details on maximum allowable DFT.
Conforms to AWWA D 102 Inside Systems No. 1 and 2. Contact your Tnemec representative for approved systems and additional information on potential uses.
Recommended DFT
2.0 to 6.0 mils (50 to 150 microns) per coat. Note: Dry film thickness that exceeds published recommendations but is in compliance with SSPC PA-2 and ANSI/NSF Std. 61 certifications, is acceptable. Note: Number of coats and thickness requirements will vary with substrate, application method and exposure. Contact your Tnemec representative.
Theoretical Coverage
914 mil sq ft/gal (22.4 m²/L at 25 microns). See APPLICATION for coverage rates. †
Volatile Organic Compounds
Unthinned: 3.02 lbs/gallon (362 grams/litre)
Thinned 10%: 3.37 lbs/gallon (404 grams/litre) †
Colors
1211 Red, 1255 Beige, 00WH 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.
Number of Components
Two: Part A and Part B
Topcoats
Interior: Series 20, FC20, 22, N140, N140F, 141, 264, 265
Exterior: Series 20, FC20, 22, 27WB, 30, 66, L69, L69F, N69, N69F, V69, V69F, 72, 73, 118, N140, N140F, V140, V140F, 141, 161, 700, V700, 701, V701, 1026, 1028, 1029, 1074, 1074U, 1075, 1075U, 1094, 1095, 1096, 1224. Note: When topcoating with Series 700, V700, 701, or V701, an intermediate coat of Series 73, 1075, 1075U, 1095 or 1096 is required. Note: A maximum recoat time may apply depending on the topcoat specified.
Curing Time
| Temperature | To Touch | To Handle | To Recoat | Immersion |
|---|---|---|---|---|
| 90°F (32°C) | 1 hour | 5-7 hours | 6-8 hours | 4-5 days |
| 80°F (27°C) | 1.5 hours | 7-9 hours | 8-10 hours | 6-7 days |
| 70°F (21°C) | 2 hours | 10-12 hours | 12-14 hours | 7-10 days |
| 60°F (16°C) | 3 hours | 16-20 hours | 20-24 hours | 10-12 days |
| 50°F (10°C) | 4 hours | 24-30 hours | 30-36 hours | 14-16 days |
Curing time varies with surface temperature, air movement, humidity and film thickness.
Ventilation: When used in enclosed areas, provide adequate ventilation during application and cure.
Volume Solids
57.0 ± 2.0% (mixed) †
HAPS
Unthinned: 4.18 lbs/gal solids
Thinned 10%: 5.16 lbs/gal solids
Surfacer/Filler/Patcher
Series 215