Use and Care Guide
GacoFlex E5320
Page 2
Made in the USA gaco.com 800.331.0196
APPLICATION
MIXING:
GacoFlex E5320 is a two-component material. Equal parts by volume of Part A and Part B must
be properly combined per the following directions prior to application: Mix Part A well for 3-5
minutes. Mix Part B for 3-5 minutes. Pour Part B into a clean, empty pail. Pour Part A into the
same pail. It will sink. Mix both together for 3-5 minutes. Mixture will appear thin and light pink in
color. Power mixing is recommended when combining more than one gallon (3.79 L) each of Part
A and Part B.
POT LIFE:
Pot life after mixing is 1.5 hours at 75°F (24°C); the pot life will double at 55°F (13°C), however
at 100°F (38°C) pot life is reduced to 45 minutes.
THINNING:
Thinning is not normally required for roller application. When thinning is necessary to extend pot
life for spraying, for application at cool temperatures, or to achieve recommended application
rates, thin combined material with 10%-20% clean water and mix thoroughly. Do not thin more
than 20%.
APPLICATION:
Product may be applied by brush, roller or spray. On smooth surfaces, use a 1/4” to 3/8” nap
roller or nylon brush. When applying E5320 as block filler for porous concrete, use a 1” to 1-1/4”
nap roller. If blow holes form as the primer dries, make a second pass with a relatively dry roller;
allow 5 to 10 minutes between passes. Contact Gaco Western for application utilizing
equipment. Do not apply to surfaces which are below 50°F (10°C).
- On single ply membrane roofs, apply one coat at the rate of 1 gallon per 500 sq. ft.
(combined material will need to be thinned 10%-20% with water to achieve this spread rate).
- On metal, apply one coat at the rate of 1 gallon per 300 sq. ft.
- On asphalt-based surfaces including smooth cap sheet, apply 2 separate coats of 1 gallon
per 250 sq. ft. For granulated surfaces, apply 2 separate coats of 1 gallon per 200 sq. ft.
-
NOTE: Application rate is job-specific. Additional material may be required.
DRY TIME:
Allow the first coat to dry for a minimum of 2 hours before application of the second coat.
Allow to dry a minimum of 6 hours before application of top coat. Dry time is dependent upon
temperature and humidity.
Note: 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 70°F (21°C) or higher. For 60°F
(16°C) days, allow one week. Full cure and dry time can be longer when there is poor air
ventilation such as in tanks or enclosed reservoirs.
APPLICATION
OF TOP COATS:
GacoFlex Silicone Coatings, as well as most other coatings and spray polyurethane foams, will
adhere well to cured E5320 films up to one week old, provided the surface is clean, dry and free
of chalk. Note: Neoprene should not be applied directly to GacoFlex E5320 until it has cured
overnight.
CLEAN UP:
Clean brushes and rollers with soap and water; a small amount of vinegar may be added to
make clean up easier. Late in the pot life or in hot weather, clean-up is impractical and brushes
and rollers should be disposed of. Clean spray equipment with water supplemented with a small
amount of vinegar and recirculate through lines and gun until residual coating is removed.
TOXICITY:
Part B contains a polyamide resin that is normally non-sensitizing; however, care should be taken
to thoroughly clean with soap and water any skin areas that are contacted by GacoFlex E5320. If
you experience any difficulty breathing, leave the area to obtain fresh air. If difficulty continues,
seek medical assistance immediately. In case of eye contact, flush immediately with plenty of
water for at least 15 minutes and seek medical attention; for skin, wash thoroughly with soap
and water.
During application, the use of chemical protective clothing and gloves is recommended. A
properly fitted respirator (NIOSH/MSHA approved) is recommended during spray application.
FLAMMABILITY:
Non-Flammable
For specific Safety and Health information please refer to Material Safety Data Sheet.