Epoxy.com Product #685
MMA Polymer Crack Healer & Sealer
EPOXY.COM PRODUCT #685 Liquid MMA Polymer Crack Repair Resin is for injection repair or as a penetrating sealer on concrete. It is a two component Methyl Methacrylate resin system that polymerizes in place. The extremely low viscosity will penetrate into concrete cracks as fine as 0.003 inches.
Concrete cracks to receive EPOXY.COM PRODUCT #685 Methyl Methacrylate (MMA) Polymer Crack Repair Resin must be clean, dry and sound. The drier the concrete, the deeper the penetration into fine cracks. Clean cracks using vacuum or compressed air to remove debris from cracks. Compressors must employ inline traps or filters to prevent water or oil from contaminating crack
One 50 gram bottle of B Component is mixed with 1 gallon A Component. Open Component A and put Component B (initiator) paste into Component A container (one 50 gram bottle of B for each 1 gallon of A, or five 50 gram bottles of B for each five gallon unit of A). Mix for 2-3 minutes with a low speed drill and Epoxy.com -Mixing Paddle. After mixing, a slight amber color liquid polymer will form.
EPOXY.COM PRODUCT #685 Liquid MMA Polymer Crack Repair Resin is applied to horizontal surfaces by squeegee, roller or brush. Spread material over area and allow to pond over cracks. Permit material to penetrate into cracks and substrate; remove excess material leaving no visible surface film. For cracks greater than 1/8" (3.2 mm) wide, fill crack with oven-dried fine sand before applying PRODUCT #685. Seal cracks with Epoxy.com Product #703 Trowel Grade Epoxy from underside, when accessible, to prevent leakage. Recoating may be required on very porous surfaces. After treatment, wait at least (20) minutes at 72 °F (22.2° C), before opening to traffic.
Do not leave puddles which can cause slippery surface. To prevent slippery surfaces, broadcast dry silica sand or Epoxy.com Product #75 Filler. Do not apply to a damp or wet surface. Do not use below 50°F for normal cure or 20°F for winter cure. Store below 80° F to prevent polymerization of the liquid and loss of activity of initiator.
Coverage depends on porosity of concrete, masonry or timber surface. 150 to 200 (1.03 - 1.38 MPa) square feet are the usual range normal.
1 gallon (3.8 L) , 5 gallon (18.9 L) units or 54 gallon (204.4 L) drums.
DANGER! FLAMMABLE! A Component contains Methyl Methacrylate. B Component contains Benzoyl Peroxide.
Use only with good ventilation. Avoid inhalation of vapor. Prevent all contact with eyes, skin and clothing. Wash thoroughly after handling. keep containers closed when not in use.
FIRST AID IN CASE OF CONTACT: If contact with skin occurs, wash immediately with soap and water, and contact a physician. if contact with eyes, immediately flush with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Call a physician. Wash clothing before reuse and discard contaminated shoes.
WEAR PROTECTIVE CLOTHING, GOGGLES, GLOVES AND/OR BARRIER CREAMS.
FOR INDUSTRIAL USE ONLY
KEEP AWAY FROM CHILDREN