SIGMACRETE URP (For Repairs & Rehabilitation)

Product Description

SIGMACRETE URP is an emulsion of single component latex specially developed to improve the properties of cementitious compositions. SIGMACRETE URP when used in combination with standard quality of ordinary portland cement, it enhances the mechanical properties such as bonding (adhesion) with various building materials, flexurals, compression and impact strength. SIGMACRETE URP improves the thin section fragility of cement when used as coating. It is resistant to hydrolysis hence can be used for external applications too.

Typical Applications

  • Increases flexural and tensile strength .
  • Compressive strength is comparable with concrete.Reduced shrinkage, water permeability.
  • Good bonding between old & new concrete.
  • High strength mortar with good resilience.Durable structural repairs, restoration & waterproofing .
  • Improved abrasion resistant flooring
  • Simple to use as it is a single component.
  • Cures to a hard, tough & wear resistant surface.
  • Bonds (adheres) strongly to the most surface types.
  • Can be applied to an uniform thickness coating on horizontal and vertical surfaces.
  • Allows trapped water vapours to escape and prevents blistering and adhesion failures
  • Makes cement mortar or coating compact which prevents salt penetration into the concrete.
  • It is unaffected by UV light and prevents fading of concrete
  • It acts as anti-corrosive for steel. SBR is highly durable even in continuous contact with water.
  • It is resistant to water, dilute acids and alkali solutions.
  • Non-flammable,Non-hazardous, Non-toxic.
  • Resistant to fungus and micro-organism growth.

    • Typical Applications

  • Waterproofing of building, toilets sunken portion basement.
  • Waterproofing of water tanks and swimming pools.
  • Repairing of concrete and masonry walls-internal, external & terrace roofs by cement mortars.
  • Renovation and protection of concrete against corrosion and salt petre.
  • As a bonding agent for old concrete to new concrete, industrial floor or floor duct nosing repair.

    • Surface Preparation

    Surface preparation is the most important step before application to achieve desired results and avoid failures.The surface should be absolutely dry, free from dust coatings, loose particles, fungus, moss, oils, greases, mould-release agents & dirt. Clean the surface by scrapping sand blasting to remove dirt & loose particles.
    Treat surface with 5%10% hydrochloric acid, followed by complete neutralization with water, which will improve bonding of the coating. Oils, greases & mould-release agents can be cleaned with solvents.

    Direction for use

    SIGMACRETE URP is first separately diluted with water by adding water to SIGMACRETE URP . The diluted SIGMACRETE URP is then added into the mixture & homogenised.

    A) Method

  • On a clean & well prepared surface apply SIGMACRETE URP cement slurry (SIGMACRETE URP : Cement: 1 : 1 Part by weight).
  • Apply SIGMACRETE URP mortar by trowel to achieve uniform & smooth finish. Application of SIGMACRETE URP modified mortar should be very fast as it cures fast.
  • Moist cure for 24 hours & then allow it to cure

    • B) Preparation of Mortar

  • Cement    : 1.00 Kg
  • Sand    : 2.50 Kg
  • Water    : 0.16 Kg
  • SIGMACRETE URP    : 0.20 Kg
    • Adjust quantity of water for workability if required. Do not add excess water. Increase the proportion of SIGMACRETE URP for more demanding situations.

    Specifications

    Structure Repair

    A) Remove all sealed / loose concrete to reach up to the concrete or reinforced structure and remove all loose dust by means of wire brush.
    B) Remove all dust particles by means of high jet water.
    C) Apply one coat of SIGMACRETE URP with cement (Ratio of SIGMACRETE URP : cement :: 1 :1 PBW) on cleaned reinforcement & allow to dry for 2 - 3 hrs. Coverage: 60 + 5 sq.ft. / Litre / coa.t
    D) Apply SIGMACRETE URP coat i.e. mixture of cement: SIGMACRETE URP (1:1 by PBW) on entire surface. Allow it to dry for 1-2 hrs. Coverage: 30 + 5 sq.ft. / lit / coat.
    E) Now prepare polymer modified mortar as given below and apply it on entire concrete substrate at 10mm or 20mm thickness as required.
  • Cement    : 50 Kg
  • Sand    : 125 Kg
  • Water    : 8-10 Kg.
  • SIGMACRETE URP    : 8-10 Kg.
    • Apply above polymer mortar by hand pressing over tacky SIGMACRETE URP F) Allow to cure above polymer mortar for one day.

    Curing

    Moisture cure for 24 hours allow to dry out

    Cleaning of tools & equipments

    Tools & equipments should be cleaned with water immediately after use.

    Storage & Shelf life

    24 months from the date of manufacture. Shake well before using after prolonged storage

    Packing

    20 lit, 50 lit, 200 lit
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