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Series 391 | Tank Armor

Generic Type Polyamine Epoxy
Common Usage An internal epoxy lining formulated for aggressive chemical immersion and corrosion control of chemical tanks. Contains micro-fiber reinforcement for improved film integrity. Series 391 exhibits superior resistance to a wide range of chemicals, acids, and fractionation blends with excellent physical properties for long term durability and service life of transport and storage tanks. Contact Tnemec for more information.
Colors 1234 Blue
Note: Epoxies chalk and yellow with age, extended exposure to UV and artificial lighting.
Finish Semi-gloss
Primers Self-priming
Note: Series 61 can be used as a primer under Series 391 depending on service conditions. Contact Tnemec Technical Service for recommendations.
Volume Solids 100% (mixed)
Recommended DFT 20.0 to 40.0 mils (500 to 1,015 microns), one coat with multiple passes.
Note: Series 391 can be applied to an optional high build thickness of 50 mils (1270 microns) in a single coat to meet specific industry requirements.
Curing Time
TemperatureTo HandleMax. RecoatImmersion
75°F (24°C)8 hours24 hours5 days
Note: If more than 24 hours have elapsed between coats, the Series 391 coated surface must be mechanically abraded before topcoating. Note: For high temperature service (>90°F, 35°C) consult your Tnemec representative or Tnemec Technical Services. Curing time will vary with surface temperature, air movement, humidity and film thickness.
Volatile Organic Compounds Unthinned: 0.09 lbs/gallon (10 grams/litre)
HAPS Unthinned: 0.00 lbs/gal solids
Theoretical Coverage 1,604 mil sq ft/gal (39.4 m²/L at 25 microns). See APPLICATION for coverage rates.
Number of Components Two: Three Part A (epoxy) to One Part B (amine)

Chemical Recommended Use - What is this?

The chemical resistance data listed on this website should only be used for general reference purposes. Substrates, temperatures, chemical combinations, and other variables can affect the performance of a coating in chemical exposure. Please contact your local to finalize the most appropriate system for your project.

Click the following button to download a PDF of the list of chemicals below.

1 Product is NOT suitable for direct or indirect food contact. Intended Use and temperature information relates    to product's performance capabilities only.

2 Product is suitable for direct or indirect food contact. Reference the product data sheet for more information.


Recommended Use
Chemical Occasional Contact Frequent Contact Secondary Containment Cargo Immersion Immersion Service
1, 1, 1-Trichloroethane

Also Known As: Trichloroethane

100°F (38°C) 100°F (38°C) 100°F (38°C)
Acetaldehyde NR NR NR NR NR
Acetic Acid
Acetic Acid, Glacial NR NR NR NR NR
Acetic Anhydride NR NR NR NR NR
Acetone 120°F (49°C)
Acetonitrile
Acrylic Acid
Acrylic Latex Solution 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Acrylonitrile
Activated Carbon 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Adipic Acid (Dry) 100°F (38°C) 100°F (38°C)
Allyl Chloride 100°F (38°C) 100°F (38°C) 100°F (38°C)
Aluminum Chloride
Aluminum Hydroxide 100°F (38°C) 100°F (38°C) 100°F (38°C)
Aluminum Nitrate
Ammonium Bisulfite 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Ammonium Carbonate 100°F (38°C) 100°F (38°C) 100°F (38°C)
Ammonium Chloride
Ammonium Fluoride NR NR NR NR NR
Ammonium Hydroxide
Ammonium Lauryl Sulfate
Ammonium Nitrate
Ammonium Nitrite
Ammonium Perchlorate (Dry) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Ammonium Persulfate
Ammonium Phosphate 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Ammonium Sulfamate 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Ammonium Sulfate 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Ammonium Sulfide 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Ammonium Sulfite 100°F (38°C) 100°F (38°C) 100°F (38°C)
Amyl Acetate 100°F (38°C) 100°F (38°C) 100°F (38°C)
Aniline
Animal Fats 120°F (49°C) 120°F (49°C) 120°F (49°C)
Animal Oil 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C)
Aqua Ammonia 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Aqua Regia 100°F (38°C)
Aviation Gas 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C)
B20 Bio Diesel 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C)
Barium Chloride
Barium Hydroxide
Barium Nitrate 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Barium Sulfate 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Barium Sulfide 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Beer (non-food contact) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C)
Benzene 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C)
Benzene Sulfonic Acid 100°F (38°C) 100°F (38°C) 100°F (38°C)
Benzoic Acid 100°F (38°C) 100°F (38°C) 100°F (38°C)
Benzoyl Chloride 100°F (38°C) 100°F (38°C) 100°F (38°C)
Benzyl Alcohol 100°F (38°C)
Benzyl Chloride 100°F (38°C) 100°F (38°C) 100°F (38°C)
Borax 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Boric Acid
Butyl Acrylate NR NR NR NR NR
Butyl Amine NR NR NR NR NR
Butyric Acid NR NR NR NR NR
Cadmium Bromide
Cadmium Chloride
Cadmium Plating (Cyanide) NR NR NR NR NR
Calcium Bisulfate NR NR NR NR NR
Calcium Bromide 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Calcium Carbonate 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Calcium Chloride
Calcium Hydroxide

Also Known As: Lime Slurry

Calcium Hypochlorite
Calcium Nitrate 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Calcium Nitrite 100°F (38°C)
Calcium Oxide 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Calcium Sulfate 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Calcium Sulfite 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Caprolactam 100°F (38°C) 100°F (38°C) 100°F (38°C)
Carbon Disulfide 100°F (38°C) 100°F (38°C) 100°F (38°C)
Carbon Tetrachloride 100°F (38°C) 100°F (38°C) 100°F (38°C)
Castor Oil 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Caustic Potash 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Chlorine Dioxide 100°F (38°C) 100°F (38°C) 100°F (38°C)
Chlorobenzene 100°F (38°C) 100°F (38°C) 100°F (38°C)
Chloroform 100°F (38°C) 100°F (38°C) 100°F (38°C)
Chlorosulfonic Acid NR NR NR NR NR
Chromic Acid
Citric Acid
Coal (high and low sulfur) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Cola (non-food contact) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Copper Acetate
Copper Chloride 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Copper Nitrate 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Copper Sulfate
Copper Sulfate (dry) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Corn Mash Solution (non-food contact) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Corn Oil (non-food contact) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C)
Cottonseed Oil (non-food contact) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C) 120°F (49°C)
Cresylic Acid NR NR NR NR NR
Crude Oil (Sour) 275°F (135°C) 275°F (135°C) 275°F (135°C) 275°F (135°C) 275°F (135°C)
Crude Oil (Sweet) 220°F (104°C) 220°F (104°C) 220°F (104°C) 220°F (104°C) 220°F (104°C)
Cumene Hydroperoxide NR NR NR NR NR
Cuprous Chloride 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Cyclohexane 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Cyclohexanol 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Cyclohexanone 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C) 100°F (38°C)
Cyclohexlamine 100°F (38°C) 100°F (38°C) 100°F (38°C)

1 Product is NOT suitable for direct or indirect food contact. Intended Use and temperature information relates    to product's performance capabilities only.

2 Product is suitable for direct or indirect food contact. Reference the product data sheet for more information.

  • Color cards, swatches and fan decks are offered at no charge, by request , for more accurate color selection. Expert custom color matching is also available by contacting your Tnemec Coatings Consultant .
  • Deeptone colors may be more expensive than lighter colors. Please contact your Tnemec Coatings Consultant to verify product/color availability and pricing.
These digital colors should not be used to finalize your color selection. Please read our disclaimer . Use the color swatch tool on the left to request official color swatches.

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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.

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