MIXING AND APPLICATION INSTRUCTIONS
NORTHERN 120 EPOXY MORTAR PATCH KIT

PRODUCT MIXING: Mix the liquids to be used in the 120 mortar system by combining part A with part B and mix with a jiffy mixer for 2-3 minutes. This material can now be used to prime the surface of the repair area. This material should then be blended or mixed with the aggregate supplied in the kit. Mix the aggregate and pre-mixed liquids together with slow speed mixing equipment such as a jiffy mixer. The amount of aggregate should not exceed 37 pounds per1/2 gallon mixed liquids.

PRIMER: After mixing part A and part B together, the Northern 120 liquids are used to prime the surface of the repair area.

PRODUCT APPLICATION: The material can be spread by using a screed box, rake or hard trowel. Spread the mixed 120 mortar directly over the wet 120 liquids. Once you have spread the 120 mortar it must be finished trowled by hand trowel (small areas) power trowel ( larger areas) to full compaction strength. Do not over-trowl this material, as this may cause isolated blisters to form. Maintain temperatures within recommend ranges.

DRY TIME: Light foot traffic 4-6 hours, full cure 2-7 days.


CONCRETE PREPARATION FOR FLOOR COATING:

Acid etching solution will not work properly on greasy, oily, or painted surfaces. This concrete must first be cleaned with either, Northern Aqua-Blue or Northern Scrub-Free, for heavy film buildup removal.

Acid solution should always start at the lowest level of a floor, usually the drains. Apply in a circular fashion out away from drains. Remember acid solution will not work properly when poured on "spent" or "used" acid solution. Acid solution should "foam" or "froth" instantly when poured on the concrete. Slow or no reaction is a sign the concrete was not ready to be etched. Clean and repeat above procedure.

Muratic or Hydrochloric acids are available commercially at most hardware stores or pool supply stores. Mix 2 parts water with 1 part acid for good etching. Using a plastic watering sprinkler, apply the mixed acid solution (always add water to the can first) at a spread rate of 50 sq. ft. per gallon. Acid solution must be "worked" into the substrate with a stiff bristle broom to completely agitate the floor. Once acid solution stops frothing (approximately 10-15 minutes) flush remaining solution to drain and rinse floor thoroughly. "Do not let solution dry". Rinse floor a second time with some household ammonia to neutralize any acid residue that might remain.