Technical Datasheet

Handling/Application

Information

Directions For Use:

3M™ Fuel Resistant Coatings EC-776 and EC-776SR may be applied by brush or

flow applicator. When applying in multiple coats allow a minimum of 10 minutes

between coats. Under normal atmospheric conditions this coating becomes tack

free in about 20 minutes and should thoroughly dry in approximately 24 hours.

3M EC-776 and EC-776SR Coatings are commonly used without heat cure. Heat

curing 3M EC-776 and EC-776SR Coatings for 1 hour at 250°F will increase

moisture resistance of the coatings.

Coverage is approximately 320 square feet per gallon for a 1 mil dry film.

Surfaces to be coated should be clean, dry and free from oil or grease.

3M EC-776 and EC-776SR Coatings may also be used to coat tanks (aluminum or

steel) by the fill and drain method. It is sometimes desirable to dilute 3M EC-776

and EC-776SR Coatings with methyl ethyl ketone (MEK) to assure proper run out

or flow properties when using the fill and drain method.* An air hose inserted into

the fuel tank can be used to help provide air circulation for proper drying.

Clean up can be accomplished with MEK.

*Note: When using solvents, be sure to follow the manufacturer’s precautions

and directions for use for handling such materials.

Application Equipment

Suggestions

Note: Appropriate application equipment can enhance bonding film performance. We

suggest the following equipment for the user’s evaluation in light of the user’s

particular purpose and method of application

Pump – 2 to 1 ratio pump ball type check valves divorced design. Displacement of 5

cubic inches per cycle with 2" air motor.

Primer – None needed.

Accessories –

Hose – Low pressure hose, fluorinated plastic or nylon lined.

Flow Gun – Low pressure tip seal flow gun.

Note: All materials must be compatible with MIBK and MEK. Nylon and fluorinated

plastic linings are compatible.

Reference Information

Material Temperature – 40°F (4°C) 1/8" dia. bead.

- 2 -

Material

Material

Pressure

Output

Pressure

Output

psi

lb/min

psi

lb/min

Ten Foot Length 3/4" I.D. Hose

80

8.0

60

6.5

Twenty Foot Length 3/4" I.D. Hose

100

10.0

60

5.2

Twenty Foot Length 3/4" I.D. Hose

120

8.3

60

3.5

Ten Foot Length 1/2" I.D. Hose

Twenty Foot Length 1/2" I.D. Hose

140

8.5

60

3.0

Ten Foot Length 1/2" I.D. Hose

100

7.0

60

3.0

Ten Foot Length 1/2" I.D. Hose

160

4.7

60

4.3

Ten Foot Length 1/4" I.D. Hose

Note: Listed material pressure = operating air pressure x pump ratio.