GacoFlex E-5320
Two-Component Epoxy Primer
E-5320
December 2001
Supersedes 7/00

DESCRIPTION:
E-5320 is a two component water based epoxy primer.
USAGE:
A general purpose primer which may also be used as a masonry block filler. It adheres well to most metals, organic polymers, wood, masonry and vitreous surfaces. Do not use on copper or silver.

Usage in the food processing industry is approved. All ingredients are sanctioned by the Food and Drug Administration for use in coatings that contact food at temperatures up to 120F (49C). The U.S. Department of Agriculture has granted approval for use in meat and poultry processing buildings.

COLOR:
Part A is White. Part B is Brown. The combined product is Light Tan.
CONSISTENCY:
Part A is slurry, with soft settling characteristics. Part B is a viscous liquid. When combined, the resulting product becomes a thixotropic, easy spreading suspension.
APPLIED PRODUCT DATA
WEATHERABILITY:
Chalk resistance is poor. Durability without top coating is only fair.
CHEMICAL
RESISTANCE:
Good solvent, fair acid, excellent alkali resistance.
HARDNESS:
Cures to form hard coating material. Seven days at 60 to 80F (16 to 27C) is required to achieve maximum hardness.
WATER VAPOR
PERMEABILITY:
Cures to form a solvent and vapor resistant film.
FLAMMABILITY:
Non flammable.
TOXICITY:
Part B contains a polyamide resin which is non-sensitizing; however, care should be taken to thoroughly clean with soap and water any skin areas that are contacted by E-5320. Undiluted vinegar is very effective in neutralizing coating that contacts the skin. If the coating should get in the eye, flush with water and call a physician.

Use a particulate matter respirator to avoid inhalation of paint particles when spraying.

ADHESION:
Excellent adhesion to most surfaces. Most coating materials have excellent adhesion to E-5320.
PACKAGED PRODUCT DATA
COVERAGE:
When used unreduced as a block filler, the coverage is one gallon per 70 to 100 square feet (3.78 L / 7 to 10 m). When reduced one pint of water per gallon (.5 L per 3.78 L) of mixed E-5320 and applied to smooth concrete, the coverage is one gallon per 200 to 250 square feet (3.78 L / 20 to 25 m).
SOLIDS:
Weight
Volume:
60.5%
44.0%
V.O.C.:
111 grams per liter.
FLASH POINT:
Above 200F (93C) T.O.C.
STORAGE
STABILITY:
One year. Protect from freezing in shipment and storage.
THINNING:
Thin with water. Clean up with water supplemented with soap or a small quantity of vinegar. T-5130 Thinner and Cleaner is recommended for both cleaning and drying spray equipment in order to avoid corrosion.
APPLICATION
MIXING
INSTRUCTIONS:
Mix one volume of Part A with one volume of Part B. Mix thoroughly. Power mixing recommended for quantities over two gallons (7.6 L).
POT LIFE:
The pot life is 1 hours at 75F (24C). Pot life at 55F (13C) is doubled, but at 100F (38C) it is reduced to 45 minutes.
PRIMER
APPLICATION:
Use long nap (1" to 1" (3 to 4 cm)) rollers when E-5320 is used as a block filler for porous concrete. If blow holes form as the primer dries, make a second pass with a relatively dry roller. Allow 5 to 10 minutes between passes.

For application to smooth surfaces, add one pint of water per gallon of E-5320. Use a " or " (1 cm to 2 cm) nap roller or nylon brush.

Do NOT apply to surfaces which are below 50F (10C) or above 110F (43C) unless special instructions are secured from Gaco Western, Inc.

APPLICATION
OF TOP COATS:
Urethane and Hypalon coatings can be applied over E-5320 as soon as it is thoroughly set. This degree of dryness is normally achieved in two to three hours. Neoprene should not be applied directly to E-5320 until it has cured overnight. Where maximum solvent resistance is needed, apply two coats a minimum of two hours apart. Let cure for two days with a daily maximum temperature of 70F (21C). or higher. For 60F (16C) days, allow one week. All GacoFlex elastomers and most commercial paint will adhere well to cured E-5320 films up to one month old, provided that the surface is clean and free of chalk.