BestRepair CE250

Surface-repairing mortar, Polymer-cement modified, one component

Advantages:
  • One component is easy to use, minimizing risks during construction.
  • High plasticity, easy to adjust, so it saves labor and materials cost.
  • Non-shrinkage, minimizing surface cracking.
  • Rapid and high-strength development, quickly put the project into use.
  • Improve abrasion resistance, chemical resistance, and waterproof ability.
  • Non-toxic, can be used for water reservoirs...
  • Non-chloride, non-corrosive
  • Suitable for Vietnamese climate conditions.
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  • BestRepair CE250 is surface repairing mortar, one component, polymer cement modified. It is a combination of: special cement, mineral and selected silicate mineral fibers, polymer, and special additives to make its chemical and physical properties. 
  • Parking lot, pool bottom, water tank, prefabricated components ...
  • BestRepair CE250 is used for repairing finish surfaces: floor, wall, ceiling, ...which is honeycombed, damaged by erosion, impact, mechanical abrasion,...during use.
  • Recreating flatness for new surfaces that have not reached the flatness or gloss due to construction. 
  • One component is easy to use, minimizing risks during construction.
  • High plasticity, easy to adjust, so it saves labor and materials cost.
  • Non-shrinkage, minimizing surface cracking.
  •  Rapid and high-strength development, quickly put the project into use.
  • Improve abrasion resistance, chemical resistance, and waterproof ability.
  • Non-toxic, can be used for water reservoirs.
  • Non-chloride, non-corrosive.
  • Suitable for Vietnamese climate conditions.

SPECIFICATION

Existence form:
Dry fine powder.

Color:

Grey cement.

Density:

  Dry powder form: 2.65  ± 0.02 kg/liter. Wet form: 2.23  ± 0.02 kg/liter.

Storage condition:

Unopened bag, cool and dry place.

Shelf life:

 At least 12 months in storage condition.
Packing:

    25 kg/bag.
Consumption:
74÷75 bags for 1m3 mortar.

 

TECHNICAL DATA:

Mixing water
(%)
Size of
particle
(mm)
Shrinkage
(%) 
Layer thickness
(mm)
Pot life
(minute)
15÷17

< 0.5

 < 1 1-5 < 30

Minimum strength:

Old days
01 day 
03 days 07 days 28 days
 Compressive strength (*)
(MPa)
 ≥ 10 ≥ 15 ≥ 2.5 ≥ 25
Flexural strength(*) (MPa)
≥ 1.0 ≥ 1.5 ≥ 2.0 ≥ 2.5
Bonding strength(**) (MPa)
NA NA NA ≥ 1.5

(*): Standard: ASTM C348; ASTM C349.

(**): Standard: ASTM D7234-05

INSTALLATION

Surface preparation: 

  • The surface to be repaired must be properly treated, and all loose materials and impurities must be removed.
  • Avoid spreading grease, or oil,...using high-pressure water to clean the surface before constructing.
  • If the surface is dry, moisten it with clean water.

Mixing:

  • Pouring BestRepair CE250 slowly into properly freshwater (water ratio from 15-17% compared to the weight of powder as about 3.75-4.25 liter of fresh water for 25 kg) continuously stirring with electric mixer at speed 300 ÷ 400 revolutions/ minute about 05 minutes until the mixture is free of lumps and homogeneous is as required.

Application:

  • Use a brush to apply the bonding layer of BestLatex R114 (see the application document of BestLatex R114) over the entire surface prepared as above.
  • Apply the mortar layer of BestRepair CE250 was thoroughly mixed with water on the surface while the layer of BestLatex R114 is still wet. Ensure the BestRepair CE250 mortar is compacted to the surface.
  • The maximum thickness of the mixture is not greater than 20 mm. In case of the thickness of the substrate which is needed repair is greater than 20mm, apply once more layer when the previous is hardened. 

Curing:

  • Curing regular requirement as others cement base products.
  • Reduce free of water by covering wet cloth, plastic cover, or cure compound BestCure AC015 or BestCure SS015. 

 Safety:

  • BestRepair CE250 is alkalinity, should wear gloves, masks, and glasses while handling the product. In case of accidental eye contact, wash with fresh water and seek medical advice immediately.