QCM INDUSTRIAL

                         EAS-7 GENERAL PURPOSE EPOXY

Adhesive & Floor Coating

EAS-7 is an ECONOMICAL two-part epoxy compound, specifically formulated to overcome the problems of most common two-part coatings:- i.e. brittleness, vibration resistance and poor resistance to shock; also this product minimizes surface tack when cured at lower temperatures and high humidity.

EAS-7 can be used as an adhesive or surfacing material on most common substrates including wood, concrete, metals, asphalt, glass cloth etc. Its low viscosity enhances good wet-out and adhesion. It performs well on damp covered surfaces. Its built-in flexibility provides tough, shock and vibration resistant bonds. Good physical properties can be obtained at cure temperatures down to 50 deg. F. Its simple non-critical, one to one mix ratio provides for ease of handling and usage. It is considerably less toxic and skin irritating than most industrial epoxies of comparable low viscosity. It's low viscosity makes it suitable for mixing with colored quartz sand to make build up floors or wall coatings of trowelable consistency.

PHYSICAL PROPERTIES

Color

Part A Near water white

Part B Honey

Mixed Light Straw

Weight per gallon

Part A     9.2 +/- 0.2#

Part B     9.10+/- 0.2#

Viscosity-Brookfield @ 72 deg. F.

Part A     600+/- 200 cps.

Part B     3000 +/- 500 cps

Mixed     1800+/- 500 cps

(Syrup-Honey)

Mix Ratio     One (1) to One (1) by weight or volume

Pot Life:     1# Mix

@54 deg. F     1 hour prox.

@72 deg. F     30-40 minutes

@90 deg. F     15-20 minutes

Cure Characteristics Firm Set       Hard Set       Full Cure(1)

@ 90 deg. F                  2-3 hours     4-6 hours       8-16 hours

@ 72 deg. F                  5-6 hours     10-12 hours   1-2 days

@ 54 deg. F                  10-12 hours  1-2 days         2-4 days

@ 36 deg. F                   36-48 hours  4-6 days        8-12 days

(1) Final physical properties for epoxies cured at lower temperatures are not as good as those cured at higher temperatures and should be tested for adequacy.

Bond Temperature    -40 deg. F. to 160 deg. F. (2)

(2) All epoxies (and most other materials noticeably harden when cold and soften when hot. End use application should take this into consideration.

DIRECTIONS FOR USE: Do not attempt to bond to freshly cured concrete without cleaning of surface alkalinity (or wait for 3 weeks until fully cured). Adequate bonds may be obtained with less ideal surface preparation, but user must determine suitability.

APPLICATION OF EAS-7 AS A METAL OR WOOD COATING. METALS SHOULD BE CLEANED OR BLASTED TO "BRIGHT" METAL. WOOD SHOULD BE SANDED OR HAVE A CLEAN ,DRY FINISH. BEST RESULTS WILL BE OBTAINED AT SURFACE AND MATERIAL TEMPERATURES ABOVE 54 DEGREES F.

APPLICATION OF EAS-7 TO CONCRETE.

A) PREPARE THE CONCRETE: (see separate brochure).

B) MIX (1) PART OF PART A TO (1) PART OF PART B BY VOLUME WITH DRILL MOTOR OR PAINT STIRRER UNTIL THOROUGHLY MIXED. MIX ONLY ENOUGH MATERIALS AS TO BE ABLE TO USE WITHIN THE POT LIFE. IT IS ADVISABLE TO TRANSFER THE ORIGINAL MIX OF PART A/PART B TO A SECOND MIX CONTAINER AND THEN GIVE THIS A SECOND MIX - this ensures proper mixing. CAUTION! DO NOT SCRAPE SIDES OF ORIGINAL MIX CONTAINER ONTO THE FLOOR - this could be unmixed Part A or unmixed Part B and could cause non-cured wet spots on the finished floor.

THEN MIX WITH SAND OR NON-SKID AGGREGATE IF DESIRED. TYPICALLY USE 6 PARTS OF SAND TO 1 PART OF EPOXY MIX TO GET A GROUTING PASTE CONSISTENCY.

(Colored sand or aggregate can also be broadcast evenly over the epoxy while it is still wet to give a non-skid finish. Excess sand is later vacuumed away.)

C) POUR THE MIXED EPOXY ONTO THE FLOOR AREA TO BE COVERED AS SOON AS IT HAS BEEN THOROUGHLY MIXED - it gives more working time when spread in a thin layer.

REMEMBER, POT LIFE IS GREATLY REDUCED WITH INCREASED TEMPERATURE; HALF AS LONG AT 90 DEGREES F, AS AT 72 DEGREES F. LARGER MIXES ALSO HAVE MUCH SHORTER POT LIFE.

TROWEL THE EPOXY PASTE TO A SMOOTHE LEVEL COATING OF THE DESIRED THICKNESS - OR IF USING STRAIGHT EPOXY (no aggregate) SPREAD THE MIXED EPOXY LIQUIDS EVENLY TO AN EVEN COVERING USING A NOTCHED SQUEEGEE OF THE DESIRED THICKNESS RATING.

D) LEAVE THE EPOXY TO CURE FOR 10 TO 12 HOURS (@ 70 DEG. F ) , BEFORE PUTTING ON SECOND COAT (IF REQUIRED). THIS EPOXY IS SELF PRIMING, BUT A THIN, INITIAL COAT OF STRAIGHT EPOXY CAN BE USED AS A PRIME COAT-SEALER.

Epoxy material may be skin irritating. Avoid contact with skin and eyes. For skin contact, wash thoroughly with soap and water. For eye contact, flush immediately with water and consult a physician. EAS-7 contains epoxy resins, polyamides and modified phenols.

CLEAN-UP: Uncured epoxy may be cleaned off tools and most surfaces with methyl ethyl ketone, toluene or blends of the two.

(CAREFUL! These solvents dissolve many plastics and cause kidney and liver damage if absorbed through the skin.)

SHELF LIFE: Guaranteed six (6) months when stored in sealed containers at temperatures between 50 - 90 F. Part A subject to crystallization when stored in intermittent cool temperatures for prolonged periods.

e-mail:   roy@qcminds.com

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