CHEMAX EPBOND

CHEMAX EPBOND is based on solvent free epoxy resins containing pigments and fine fillers. It is supplied as a two part material in pre weighed quantities for ready onsite mixing and use. Colored components – white base and green hardener – provide visual evidence that adequate mixing is achieved.

Uses: For bonding new cementitious materials to existing cementitious surfaces. For use on horizontal surfaces an on vertical surfaces where mortar or concrete can be supported by formwork. Ideal for extensions and repairs to structural concrete in buildings, loading bays, bridges, roads, bonded or granolithic floor toppings etc.

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Chemax EpBond- Construction Chemical Manufacturer in India

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Advantages
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Barrier coat

Acts as a ‘barrier coat’ to the migration of chloride ions from host concrete.

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Applied by

CHEMAX EPBOND can be applied by brush

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More overlay time

Enables to place the concrete up to 6 hrs after applying CHEMAX EPBOND, without risk of delamination

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High bond strength

Bond strength is more than the tensile strength of good quality concrete

Mechanical Properties
propertiesValues
Specific gravity : 1.15 to 1.2 g/cc 
Pot life : At 200C
At 300C 		5 – 6 hrs
2 – 3 hrs
Full cure : At 200C
At 300C 		7 days
5 days
Overlay time : At200C
At 300C 		10 hrs
 6 hrs
Shear strength(BS 6319 Pt 4) @ 7 days: 10 N/mm2 
Tensile strength(BS 6319 Pt 7) @ 7 days : 20 N/mm2 
Flexural strength(BS 6319 Pt 3) @ 7 days : 35 N/mm2 
Compressive strength (BS 6319 Pt 2)@ 7 days : 50 N/mm2
Adhesive strength to concrete : In general the bond strength will always exceed the tensile strength of M30 concrete.
Specification Clauses

The bonding agent shall be CHEMAX EPBOND an epoxy based two component resin system prepacked in distinct colors to give visual evidence for proper mixing. The bonding agent should remain in tacky state after application for a minimum period of 6 hours at 300C. There shall not be bond failure of the specimen when tested by slant shear method according to BS 6319 pt 4, with M30 concrete.

Application

Instructions

  • Preparation : All surfaces to be treated must be firm, dust free and clean. All laitance should be removed by etching with re cleaner and wire-brushing. In some cases, the existing concrete must be chipped to a sound substrate. Where surfaces are contaminated with oil or grease, this should be removed by using a strong industrial detergent or organic degreaser. Surface should be washed thoroughly with water and dried before the application of CHEMAX EPBOND.
  • Mixing : The entire contents of the hardener can should be poured into the resin container and the two materials thoroughly mixed until a uniform color is obtained. To facilitate application at temperatures below 10 0C the separate components should be warmed in hot water to a maximum of 250C before mixing.
  • Coating : Mixed CHEMAX EPBOND should be brush applied to the prepared surface. The new concrete should be placed within 6 hours at 300C to the CHEMAX EPBOND coated substrate, when it is in a tacky state.

Limitations

  • Limitations : CHEMAX EPBOND should not be applied when the temperature is below 100C. If any doubts arise concerning temperature or substrate conditions, consult the local CHEMAX office.

Estimating

  • Packaging : Available in 1/2, 1 and 4 liter industrial packs.
  • Coverage : Approximately 2.6 m2/liter. Actual coverage will depend upon the texture and porosity of the substrate being covered.
  • Shelf life : 12 months if stored under normal warehouse conditions below 350C, in unopened containers.

Precautions

  • Health and Safety : Contact with skin and eyes should be avoided. Gloves should be used when handling these products. If contact with the resin occurs, wash immediately with a strong detergent or a resin removing cream. Eye contamination must be immediately washed with plenty of water and medical treatment sought.
  • Fire : CHEMAX EPBOND is inflammable. No naked flame should be allowed near the site. Do not smoke during use.
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