Return to previous page
  • Overview
  • Specs
  • Cure
  • Chemical
  • Application
  • Video Install

E591 100% Solids Wet Surface Epoxy Coating | Low Temp 35F

E591 is a 100% solids, two component Cycloaliphatic Epoxy Coating that may be applied on wet surfaces with standing water or underwater without effect on cure.   Works on concrete and steel for both vertical walls and horizontal floor surfaces.  E591 provides very low permeability along with excellent impact and abrasion resistance.

Formulated with a unique moisture insensitive polymer for use in wet conditions from both fresh and salt water.  Inclement weather will seldom interfere with paint schedules. Recommended for steel and concrete surfaces. E591 is made with a special resin modification that produces a flexible film, making E591 ideal for painting over existing sound paint without “lifting”.

Can apply on vertical surfaces to 12 mils thick in one coat (135 sq’/gallon) and on floors up to 20 mils thick in one coat (80 sq’/gallon).  When mixed with a blend of silica flour and sand, E591 may be used to repair underwater, or below grade leaks in steel or concrete structures.

Can be used in submerged service applications with proper preparation and coverage rates followed. Low temperature application to 40°F on steel and 50°F on concrete and cures down to 35°F  (must remain at application rated temperature for at least 1 hour before falling as low as 35°F) .

E591 is not designed for applications with hydraulic vapor pressure problems (water pressure coming through negative side or underneath coating)

Available in 1 gallon kit and 52 gallons (52 gallons ships in (13) 4 gallon kits LTL Freight to commercial location only).

Recommend 2 coat application with each coat at 8 mils (200 sq/gallon) to 20 mils (80 sq/gallon) for total application thickness 16 to 40 mils.  Long working time 40 – 50 minute POT life at 75F.

For crack and hole repairs underwater prior to applying the E591 Epoxy consider our underwater Mend-Con  RTU Epoxy Repair product.

Where is the E591 used?

  • paper and pulp mills
  • chemical processes
  • waste water treatment facilities
  • fertilizer plants
  • electric generating stations
  • ore recovery facilities
  • mining sites
  • refineries
  • dairies
  • laundries
  • dams
  • marine environments such as pilings
  • submarine pens
  • wet ends of paper machines
  • bleach plants
  • manholes
  • pits
  • sumps
  • cooling
  • towers
  • clarifiers
  • piers
  • underwater applications, etc.
  • all kinds of wet processes

Why E591 Coating?

  • May be applied on wet or under water surfaces
  • Self-priming on steel and on most concrete applications
  • Cold temperature cure down to 35F
  • Long 40-50 POT Life at 75F
  • Ideal for marginally prepared and painted surfaces
  • Outstanding impact and abrasion
  • High film build – Up to 20 mil DFT per coat on horizontal surfaces
  • Vertical surfaces to 12 mils
  • Excellent coating for manholes
  • 100% solids and 0 g/L VOC’s
  • 3 Colors Available


Solids By Volume 100%
VOC 0g/L
Colors White, Light Gray, Medium Gray
Recommended Dry Film Thickness 2 coats with each coat at 8-20 dry mils @80 – 200 sq’/gallon
Shelf Life 12 months minimum in unopened container
Packaging 1 gallon kit, 4 gallon kits (4 gallon kits ship LTL Freight only)
Mixing ratio 3:1 by volume.  Mix 3 parts Base (Part A) to 1 part Hardener (Part B)
Adhesion:   Cross Cut Rating of 5 ASTM 3359
Adhesion:  Elcometer 106 500+ psi  D4541
Dry Heat Resistance 175ºF ASTM D2485
Abrasion Resistance 80 mg  (5 trials) CS17 Wheel, 1000 cycles, 1 kg load ASTM D4060
Flexibility: Conical Bend Mandrel Passes 1/8″ 180º Bend ASTM D522
Humidity Resistance Passes 1,000 hours ASTM D4585
Impact Resistance Direct 110 in lb ASTM D2794
Pencil Hardness 2H ASTM D3363
Sward Hardness 48 D2134
Salt Fog Resistance Passes 1000 hrs ASTM B117


Temperature Tack Free Min Recoat Max Recoat
90ºF 1-2 hours 5-6 hours 3 days
75ºF 3-4 hours 7-8 hours 7 days
45ºF 8-12 hours 36-48 hours 10 days

APPLICATION TEMPERATURE: 40ºF – 120ºF  (40°F for steel and 50°F for concrete – with ability to cure down to 35°F only after at least 1-2 hours after application) with relative humidity below 90% Times may be longer for thickness above 5 dry mils. For safety and proper product curing, good ventilation is necessary when painting indoors or in confined areas.

Be sure the batch numbers are all the same to provide uniform color. Epoxy coatings may yellow or darken during application and after final cure. This will affect the color but will have no effect on the performance of the product. Heaters that emit carbon dioxide and carbon monoxide can cause the coating to yellow.

For maximum Interior gloss and color retention, apply 1 coat of E270 Polyester Epoxy. For maximum exterior gloss and color retention apply a topcoat of E370 polyurethane.


Acetic Acid 5% Brine Hydrochoric Acid 32% Sodium Hypochloride 5%
Ammonium Hydroxide 10% Crude Oil Hydrogen Peroxide 5% Sodium Hydroxide 50%
Aqueous Salt Solutions Distilled Water Jet Fuel Sulfuric Acid 50%
Black Liquor Gasoline Lactic Acid Xylene


SURFACE PREPARATION Best method is a near white abrasive blast (SSPC-SP10) but E591 will perform well over minimally prepared surfaces depending on service requirements. Because of the lack of “standards” for minimal surface preparation, test applications should be made to determine adequate surface cleanliness and compatibility with existing paint.

Steel: Remove oil, grease and other chemical contaminants by solvent wipe or steam cleaning. Abrasive blast to a “Commercial” (SSPC-SP6) or “Near White” (SSPC-SP10) metal finish.

Galvanized Steel/Aluminum: Solvent clean per SSPC-SP1 or steam clean. Sweep blast to achieve a minimum 1 mil profile.

Previously Painted Surfaces: Solvent clean per SSPC-SP1 and/or power wash. Remove loose existing paint by wire brush or other hand tools. Feather edges. Make test application to check for compatibility.

Concrete: All new concrete must be cured at least 28 days. For on-grade concrete slabs, check that a moisture barrier film has been used. Testing may be necessary. Check for the presence of hardeners or residual forming membrane curing agents. Repair all cracks, bug holes, spalled concrete, voids and expansion joints

MIXING INSTRUCTIONS Stir each component to a uniform consistency with a variable speed drill with a Jiffy mixer. Then mix 3 parts Base A with 1 part Hardener B for 3 minutes. E591 may be reduced up to 20% with S-74 Reducer (or 100% MEK Solvent) per mixed gallon. Do not substitute reducers Improper mixing may result in product failure.

For best mixing results and proper blending of parts A and B, recommend a Jiffy Mixer style drill mixer.

NOTE:  Always wear protective gloves and clothing while mixing and applying E591.  Do not get on skin.


Airless Spray Graco Conventional Spray DeVilbiss
Gun Silver Plus Gun MBC 510 or JGAD
Pump 33:1 Extreme Fluid tip 64 or 704
Tip Range .019″ – .025″ Air cap 40 psi
Hose 1/2″ ID Atomizing Pressure 50 psi
Pressure 2500-3000 psi Pot Pressure Hose 1/2″ ID
  • When spraying, use a 50% overlapping crosshatch pattern to minimize the occurrence of pinholes. Do not apply to surfaces below 40°F or above 120°F. Do not apply over dew or frost. The surface temperature should be at least 5° above the Dew Point.

Roller – use a medium nap solvent resistant phenolic core roller.

Brush – use a pure bristle brush * Gloss will exhibit slight variation in brush or rolled film due to orientation of fillers. This does not affect product performance. For safety and proper product curing, good ventilation is necessary when painting indoors or in confined areas. Be sure the batch numbers are all the same to provide uniform color. Epoxy coatings may yellow or darken during application and after final cure. This will affect the color but will have no effect on the performance of the product. Heaters that emit carbon dioxide and carbon monoxide can cause the coating to yellow

CAUTION E591 Base is combustible. Keep away from all sources of ignition during mixing, application and cure. E591 Hardener (Part B) is corrosive and can cause eye and skin irritation as well as allergic reactions. The use of goggles, fresh air masks or NIOSH approved respirators, protective skin cream and protective clothing is a recommended standard practice when spraying coatings. Proper ventilation is always required. This product is sold without warranty as to performance expressed or implied. Users are urged to make their own tests to determine the suitability for their particular conditions.


  • Do not apply over frost surfaces or extremely high humidity conditions.
  • Do not apply over expansion joints.
  • Do not apply if the surface temperature is within 5° of the dew point.
  • Always apply a test patch of E591 for owners approval prior to application
  • Partially used containers must be reclosed tightly to prevent moisture in air from reacting with material and forming a tough skin.  Skin can be removed and remaining material used.  Be sure to stir.

SEE MATERIAL SAFETY DATA SHEET FOR FULL SAFETY PRECAUTIONS.  FOR PROFESSIONAL AND INDUSTRIAL USE ONLY  KEEP AWAY FROM CHILDREN.  NOT FOR RESIDENTIAL USE NOTICE TO BUYER: DISCLAIMER OF WARRANTIES AND LIMITATIONS ON OUR LIABILITY We warrant that our products are manufactured to strict quality assurance specifications and that the information supplied by us is accurate to the best of our knowledge. Such information supplied about our products is not a representation or a warranty. It is supplied on the condition that you shall make your own tests to determine the suitability of our product for your particular purpose. Any use or application other than recommended herein is the sole responsibility of the user. Listed physical properties are typical and should not be construed as specifications. NO WARRANTY IS MADE, EXPRESSED OR IMPLIED, REGARDING SUCH OTHER INFORMATION, THE DATA ON WHICH IT IS BASED, OR THE RESULTS YOU WILL OBTAIN FROM ITS USE. N0 WARRANTY IS MADE, EXPRESSED OR IMPLIED, THAT OUR PRODUCT SHALL BE MERCHANTABLE OR THAT OUR PRODUCT SHALL BE FIT FOR ANY PARTICULAR PURPOSE. NO WARRANTY IS MADE THAT THE USE OF SUCH INFORMATION OR OUR PRODUCT WILL NOT INFRINGE UPON ANY PATENT. We shall have no liability for incidental or consequential damages, direct or indirect. Our liability is limited to the net selling price of our product or the replacement of our product, at our option. Acceptance of delivery of our product means that you have accepted the terms of this warranty whether or not purchase orders or other documents state terms that vary from this warranty. No representative is authorized to make any representation or warranty or assume any other liability on our behalf with any sale of our products. Our products contain chemicals that may CAUSE SERIOUS PHYSICAL INJURY. BEFORE USING, READ THE SAFETY DATA SHEET AND FOLLOW THE PRECAUTIONS TO PREVENT BODILY HARM.

Installing E591/E590 Wet Condition Epoxy