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BestBond EP752 is a two-component, suitable viscosity epoxy adhesive that combines epoxy resins and specially selected silicate minerals to provide excellent physicomechanical properties.
- With the right viscosity, allows easy, quick application to old and new concrete connection surfaces, saving considerable time.
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Permanent connection for mortar or new concrete mixed with: cured concrete, brick, stone, steel, or other building materials.
- This product is also used to seal crow's feet cracks, and as a protective layer for structural steel parts...
BestBond EP752 creates a bond whose tensile strength is much higher than that of concrete. It also has other advantages:
- Ease of construction
- Solvent-free, unaffected by moisture
- Apply at a low temperature
- High tensile strength
SPECIFICATION
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Package:
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1; 5kg/ set.
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Shelf life:
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12 months since production date (Under the condition of the box sealed, untouched, and stored at a cool and dry place) |
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Color:
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Light grey
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Density (25oC):
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Part A: 1.70 kg/liter; Part B: 1.03 kg/liter |
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Dry content:
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100 %
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Application ambient:
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Minimum temperature: 20oC (over dew point temperature of 5oC) Maximum temperature: 35oC Relative humidity ≤ 80% |
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Chemical resistance:
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Resistant to alkali, acid, water, salt solution, oil, fuel and many other popular chemicals.
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Mechanical strength:
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Compressive strength and adhesive strength are very high with concrete surfaces.
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Mix proportions:
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Part A: Part B = 1:1 (by the weight) |
Allowing application time:
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Temperature
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+20⁰C | +25⁰C | +30⁰C | + 30⁰C |
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Allowing time(mins)
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90 |
75 | 40 | 25 |
Physical properties (samples after 07 days curing at 30⁰C):
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Bonding strength: (Slant shear test) |
≥ 10 Mpa (greater than the tensile strength of concrete) (ASTM D882) |
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Adhension strength:
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≥ 1.5 Mpa (concrete failure) (ASTM D7234)
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Surface condition:
- The cracked surface must be clean, dry, not bonding impurities easy blister, remove all dust by proper mechanical methods.
Surface preparation:
- The cracks must be cut or sawed out to a minimum width of 5mm, a depth greater than or equal to 1.5 times the width. The crack bottom has U-shaped. Using a compressor air to clean the cracked surface.
Mixing:
- Two components A and B should be carefully mixed under the right ratio by slowly stirring (at speed of 300 ÷ 400 rpm).
- The minimum mixing duration should not be less than 03 minutes and can be longer until reaching the required homogeneity.
Cleaning:
- Use BestThinner SC-01 to clean instruments as soon as after the execution and before the mixture’s hardening.
Safety:
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Both components are non-toxic and non-flammable. This product can be allergic to the skin, therefore should be prevented from direct contact with the skin. It is advised to wear PPEs while handling the product. In case of accidental eye contact, wash with fresh water and seek medical advice immediately.