Concrete Repair & Bonding / STAGES
Old-to-new concrete epoxy bonding
Epoxy bond coat before placing fresh concrete onto prepared existing concrete
Bonding Agents
MC-Epo Bond
Epoxy Bonding Agent
MC- Epo Bond is a two components epoxy bonding agent , structural adhesive for bonding new concrete to old concrete . M C - Epo Bond meets the requirements of ASTM C 881-78 ; Grade 2 , class B+C .
Description
MC-Epo Bond is a two-component epoxy bonding agent and structural adhesive for bonding new concrete to old concrete. The source references ASTM C881-78, Grade 2, Classes B+C.
Where to use
Positive bonding of new concrete to old eroded or spalled concrete surfaces. Remedial maintenance, waterproofing and restoration of concrete surfaces.
Advantages
Long pot life. High bond strength with concrete. Can be applied by brush, roller or spray. Suitable for vertical and horizontal surfaces. Low cost. Easy application. Waterproof.
Technical data
Color Clear, white, gray and black Pot life @ 25°C Clear: 35 min; white/gray: 1.5 h; black: 2 h Mixing ratio Clear 1:2; white/gray 1:5; black 0.7:5 (curing:base) Initial setting time @ 25°C 4 hours Final cure 5-7 days at 30°C Coverage 2-5 m²/kg, depending on surface Compressive strength - 28 days 600 kg/cm² Tensile strength - 14 days 280 kg/cm² Flexural strength - 14 days 300 kg/cm² Water absorption < 1%
Technical data - continued
Bonding strength - 7 days 28 kg/cm² to concrete Effective shrinkage Pass Shelf life 12 months Packaging Clear 6 kg (4+2); white/gray 6 kg (5+1); black 5.7 kg (5+0.70)
Surface preparation
The application surface should be sound and clean. Use conventional cleaning methods such as acid etching or mechanical scarification. The surface must be dry and free from standing water.
Mixing
Mix the two components thoroughly according to the required mixing ratio.
Application
Apply MC-Epo Bond by brush or spray. Allow approximately 15-30 minutes after application for the material to become tacky. Fresh concrete should be cast within two hours after coating at 30°C.
Cleaning
Clean tools and equipment using epoxy thinner.
Safety
Take precautions to prevent material entering the eyes and avoid skin contact.
Storage & packaging
Shelf life: 12 months. Packaging: clear 6 kg (4+2), white/gray 6 kg (5+1), black 5.7 kg (5+0.70).
MCT / SYSTEMS
Where it fits
PROJECT / NEXT STEP
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