SURFACE PREPARATION: Surface must be clean and sound. It may be dry or damp, but
free of standing water. Remove surface contaminants e.g. dust, grease, curing compounds,
impregnations, waxes, foreign particles and disintegrated materials. Concrete: Sandblast
or use other approved mechanical means. Steel: Sandblast to white metal finish.
MIXING: Pre-mix each component thoroughly. Place 1 part by volume of component A and 1 part by
volume of component B into a clean pail. Mix thoroughly for 3 min. with low-speed drill and Jiffy
type mixer (400-600rpm) until uniformly blended. Mix only the quantity that can be used within its
gel time.
TO BOND FRESH CONCRETE TO HARDENED CONCRETE: Apply by brush, roller, broom or spray to cured
concrete substrate. Place fresh concrete while PRO-POXY 204 is still tacky. If coat of PRO-POXY 204
loses tackiness before pouring concrete, roughen epoxy surface to create bonding profile. Recoat
with additional PRO-POXY 204 and proceed.
TO BOND OLD TO OLD CONCRETE: Apply the mixed PRO-POXY 204 by brush, roller, broom or spray to
the substrate working in for positive adhesion. While coating is tacky, join the coated substrates
and secure firmly into place. Glue-line should not exceed 1/8 in./3.2 mm.
TO STRUCTURALLY REPAIR CRACKS BY GRAVITY FEED: If cracks reflect through slab, seal underside
of cracks by buttering crack with PRO-POXY 300, PRO-POXY 300 FAST, or PRO-POXY 300 PASTE. Otherwise,
pour neat PRO-POXY 204 into vee-notched crack. Continue placement until crack is completely filled.
TO VERTICALLY ANCHOR REBAR, DOWELS, AND THREADED ROD: For efficient transfer of stress, the
annular space around bolt should not exceed 1/8 in./3.2 mm. The depth of embedment is typically 9
times the bolt diameter. Grout with neat PRO-POXY 204.
TO PREPARE EPOXY MORTAR: Slowly add 1 1/2 parts by loose volume of an oven-dried aggregate to
1 part of the mixed PRO-POXY 204. Mix until uniform in consistency and color.
