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Concrete Repair Bonding agent & SBR 417

Cetcrete SBR is polymer based liquid used in mortar and concrete as an admixture for water resistance and durability.



Download Technical Data Sheet

Features

  1. Simple to use – Single component, gauged as required.
  2. Provide excellent bond to concrete, adhesion plaster, masonry, stone work, etc.
  3. Provides mortar with improved durability impermeability to chlorides and other harmful agents
  4. Provides waterproof and cohesive screeds, plaster and impermeable slurry coat.
  5. Improves tensile and flexural properties of cement thereby reduces cracking
  6. Compatible with all common hydraulic cements
  7. Excellent bonding of old to new concrete
  8. Protection against corrosion
  9. High resistance to water penetration
  10. Increase durability and toughness

Area of application

  1. Roofs
  2. Terraces
  3. Parapets
  4. Bathrooms and sunken portions of toilet blocks to ensure waterproofing.

Surface preparation

  1. The object of the surface preparation is to achieve a clean sound surface with a good mechanical key
  2. All substrates should be cleaned and free of dust, plaster, oil, paint, grease, corrosion deposits, and any other deleterious substances.
  3. Laitance should be removed by mechanical means.
  4. Smooth substrates must be mechanically roughened e.g. by scrabbling, needle gun or grit blasting to provide an adequate key.
  5. Corroded reinforcing steel should be exposed around its full circumference and cleaned to remove all loose scale and corrosion deposits.
  6. It is always preferably to clean the steel to a bright condition. Use of emery cloth, grit or sand blasting is recommended.

Mixing

  1. Patching and repair mortars and plaster for masonry.
    Cement 50 kg
    Zone II sand 150 kg
    Cetcrete SBR 5 - 9 liters
    Recommended water addition 11 - 15 liters
    Recommended thickness 8 to 20mm
  2. Screeding
    Cement 50 kg
    3-6mm Granite chips 75 kg
    Zone II sand
    75 kg Cetcrete SBR5-9 liters
    Recommended water addition 8-12 liters
    Recommended thickness 10-25mm
    The screed should be of a semi-dry cohesive consistency.
  3. Polymer modified cement grout for injection - Cetcrete SBR can be used to effectively modify properties of cement grout for crack injection. The dosage of Cetcrete SBR shall be in the range of 4 L/bag of cement. The injection is carried out as per standard practice. Note : Increased dosages of Cetcrete SBR and further water reduction leads to improved mechanical properties

CLEANING

  1. Tools and equipment should be washed with water immediately after use.

Additional Guidance

  1. Prepare surfaces thoroughly. Toe-in at edges wherever possible to avoid feather edging. All surfaces including edges must be primed. All applications should be wet on wet, the primer must not be allowed to dry. The level of added water in the mix designs may need adjustment to achieve the required consistency. In general water content should be kept to the minimum necessary. For consistent performance the use of clean, dry sand is recommended. Where wet sand is used, reduce the addition of water as appropriate. In order to prevent rapid drying, mortars should be properly cured with Concure WB, curing compound. Protect uncured mortar from frost. Do not retemper mortar or primer after initial set. Minimum application temperature is 100C.

Health and Safety Instructions

  1. Cetcrete SBR should not come in contact with skin and eyes or be swallowed. Protective gloves and goggles should be worn during handling the product.
  2. If contact with skin occurs, wash well with soap and water. Eye contamination should be washed thoroughly with clean water and medical advice sought. If swallowed seek medical attention immediately - Do not induce vomiting.

Additional Information

  1. Cetcrete SBR is part of a wide range of adhesives, repair mortars, sealing compounds and flooring products specially designed and manufactured by Cetcon for the construction industry. Separate datasheets are available on all these products.

Coverage

  1. 18 to 20 sqft/kg for 2 coats

Packing

  1. 1kg, 5kg, 10kg, 20kg, 50kg, 225kg

Shelf Life

  1. 18 months
Testing Parameter Test Method SBR 417
pH Internal 7 to 9
Appearance Internal Milky White
Specific Gravity Internal 1.03-1.08
Solid Content % Internal 35-38
Film property   Clear
Tensile Strength   3.5
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