Crack Injection Epoxy (K-071)

  • USER FRIENDLY MIX RATIO
  • LOW VISCOSITY
  • B.G.E. FREE
  • EXCELLENT ADHESION
  • HIGH STRENGTH
  • ASTM C 881 COMPLIANT

Copps’ K-071 Crack Injection Epoxy is a unique formula developed for structural concrete repair by crack injection, gravity feed or patching. It can be used as a liquid binder for sand, aggregate or any other mineral filler to patch or resurface damaged concrete slabs. This material may be used to repair masonry, wood, and other rigid construction materials. K-071 is 100% solids, VOC free and Butyl Glycidyl Ether (BGE) free.

K-071 Crack Injection Epoxy has user friendly mixing ratio (2:1 by volume) which allows its application by dual cartridges or automatic injection equipment. Cap Seal with Copps’ Non-Corrosive Crack Sealing Paste (K-093) for manual or automatic injection.

K-071 meets or exceeds requirements of ASTM C 881 or AASHTO M-235 (Types I and IV, Grade 1, Class C)

HANDLING PROPERTIES @ 77 °F (25 °C)
COMPONENTS Resin, Hardener  
WEIGHT PER GALLON (MIXED) 9.1  
DENSITY (MIXED) kg/l 1.09  
MIX RATIO, pbv (pbw) 2/1 (2.3/1)  
COLOR Clear  
MIXED VISCOSITY, cP or mPa.s 550 ASTM D 2196
WORKING TIME, min 30  
GEL TIME, min 45  
APPLICATION TEMPERATURE, °F (°C)  
Ideal 70-80 (21-27)  
Acceptable 55-90 (13-32)  
TYPICAL CHARACTERISTICS:
HARDNESS, Shore D 86 ASTM D 2240
ADHESION to concrete, psi (MPa) >800 (5.5) (100% failure in concrete  
COMPRESSIVE STRENGTH, psi (MPa) 10,800 (74.5) ASTM D 695
COMPRESSIVE MODULUS, psi (MPa) 262,000 (1,807) ASTM D 695
TENSILE STRENGTH, psi (MPa) 8,500 (58.6) ASTM D 638
ELONGATION @ BREAK, % 3.8 ASTM D 638
WATER ABSORPTION, % 0.37 ASTM D 570

Butyl Glycidyl Ether. The EPA (SARA Title III, section 312) lists BGE as “Toxic” (per ANSI Z129.1) by skin absorption and an immediate health hazard.

SURFACE PREPARATION

To achieve excellent adhesion, the substrate should be free of all loose and foreign material and should be clean. Oils, grease, waxes or other contaminates must be removed prior to application. Be sure the crack is open where ports are placed. Set ports with Copps’ Non-Corrosive Crack Sealing Paste K-093 or GP Adhesive K-008.

MIXING

Mix 2 parts A (resin) to 1 part B (hardener) for 3 minutes using a Jiffy Mixer and a slow speed drill. Mix at slow speed (less than 850 rpm) to avoid air entrainment. DO NOT mix more material than can be used within the stated working time. REMEMBER - you will have less working time at higher temperatures.

CLEAN-UP

K-071 Crack Injection Epoxy and sealing pastes, before they are fully cured (hard), may be removed from tools with Copps Enviro Kleen solvent or warm soapy water.

SAFETY PRECAUTIONS

Avoid breathing of vapors. Forced local exhaust is recommended to effectively minimize exposure. NIOSH approved, organic vapor respirators and forced exhaust are recommended in confined areas, or when conditions (such as heated polymer, sanding) may cause high vapor concentrations. Do not weld on, burn or torch K-071 Crack Injection Epoxy or any epoxy material. Hazardous vapor is released when an epoxy is burned.

Wash skin with soap and water if contact occurs. If eye contact occurs flush with water for 15 minutes and obtain medical attention.

Read and understand all cautions on can labels and material safety data sheets before using this material.

WARRANTY AND DISCLAIMER

Copps Industries, Inc. gives no warranty, express or implied, and all products are sold upon condition that purchasers will make their own tests to determine the quality and suitability of the product. Copps Industries, Inc. shall be in no way responsible for the proper use and service of the product. The information given in this publication is considered to be accurate and reliable and is provided as a service only. Physical properties shown are typical. Actual properties are dependent on curing conditions and degree of cure. Any information or suggestions given are without warranty of any kind and purchasers are solely responsible for any loss arising from the use of such information or suggestions. No information or suggestions given by us shall be deemed to be a recommendation to use any product in conflict with any existing patent rights.

TB#K-071 (02/15/10)