Concrete Repair

Additives

Monneli SBR Latex Ripresa

SBR Bonding Agent for Cement Mortar & Concrete

Uses
SBR LATEX RIPRESA is used to:
Increase the adhesion power of cementitious mixtures
As an anchorage mortar in casting resumption to act as a bonding force between new and old concrete
For repairing cement and mortar
Tiles fixing with the traditional method
Higher plaster resistance
Small thickness plastering and as a filling mortar
Floor screeds and floor hardener
Cementitious rendering as rush coat
Waterproof renders and cementitious slurries
Mortars mixed with SBR LATEX RIPRESA can be used for horizontal, vertical, and overhead repair works.
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Technical Information
Product Description

SBR LATEX RIPRESA is a styrene butadiene polymer latex with high bonding characteristics. It is stable under wet alkaline conditions forming a reinforcing polymer matrix within cementitious mixes including concrete, screed and mortar. It is mixed with cement mixture to give higher adhesion power to all surfaces, extra bonding strength, excellent plasticity, higher impermeability and flexure resistance, higher abrasion and acid resistance and can be considered as a waterproof admixture when mixed with cement.

Advantages
  • Excellent adhesion to concrete, stonework, masonry, etc.
  • Mortar that contains SBR LATEX RIPRESA provides higher compressive and flexural strength with waterproofing effect
  • Reduce permeability which helps to reduce attack by chemicals
  • Reduces shrinkage and cracking in repair and screed mixes
  • Good freeze / thaw resistance
  • Improves cohesion and workability
  • Non toxic, can be used with concrete in potable water tank
Packaging, Coverage / Consumption

Packaging:

SBR LATEX RIPRESA is available in plastic container of 20 lit and 200 lit.

Shelf Life & Storage

Storage:

Keep sheltered from frost or direct sun and in original tightly closed containers. Shelf life will be 12 months.

Technical Properties
PROPERTIES

RESULTS

Appearance

Liquid

Colour

White

Density at 25ºC

1.02 kg/L

VOC

11g/L

pH5 at 250C 8.5 – 9
Temperature of application

from +5°C to +35°C

Service temperature

from -5°C to +70°C

Noxiousity according to ECM 88/379

No

Typical values with 1:3  Cement: Sand mixed with SBR Latex Ripresa (20% of cement)

Compressive strength

35  N / mm²

Tensile strength (ASTM C932)

3.6 N / mm²

Flexural strength

10.0 N / mm²

All values are subject to 5-10 % tolerance
Application Information
Instructions for use

Surface Preparation

The surface must be clean, sound, solid, uncontaminated and compact. Contaminated material, dust, corrosion, grease substances and old paints must be completely removed.

The decayed or damaged area to be repaired should be marked. Cut the marked area to a depth of at least 10mm using a hand held concrete saw or disc grinder to avoid feather edging and to provide a square edge. Break out or chip the complete repair area down to sound base using sharp tools or chipping hammer.

Surfaces should be saturated with water to avoid possible backwater at the moment of casting. Before applying the screed for repairing, apply always the anchorage mortar to assure a perfect adhesion to the old cement support. Do not let the anchorage mortar dry but cast fresh on fresh.
For steel reinforcing use BETOFER or EPOZINC to coat steel bars to protect from rust and allow to dry before applying the repairing mortar.

Mixing

SBR LATEX RIPRESA must be diluted with water according to the required application (see the relative dosage table). The solution must be poured into a cement mixer and then cement and filler can be added. Mix for few minutes till homogeneous mixture free from lumps is achieved.

At cold conditions use warm water and at high temperatures use cold water to mix the product. Cure the surface immediately after applying the mortar by using BETOCURE, a curing compound or spraying water.

Recommendations

  • The product delays slightly the initial setting of the mixture assuring at the same time a better curing. Don’t use pure product neither like primer nor as an adhesion bridge. It is supplied as a ready to use white liquid. It is also ideal for internal and external applications in conjunction with cement.
  • The product should not be applied when temperature is below +5°C.

Dosage Table

Use

 Mixture Ratio SBR Latex  Ripresa: Water

Weight Ratio Cement: Inert
Primer casting in       resumption           1 1 3 -
Anchorage mortar 1 1 2 -
Plastering up to 10 mm 1 1 1 3
Screeds from 10 to 50 mm 1 1 1 3
Tiles fixing 1 1 1 2
Patching and repair mortars 1 1 1 3

It should be noted that due to the frequent inconsistencies of site-stored materials and variable conditions, actual results may differ from those published above.

Additional Information
Health & Safety

Handle the product with caution. Use gloves and goggles and avoid contact with eyes and skin. In case of contact with eyes, wash abundantly with warm water and consult a doctor immediately.

Important note

The information in this Technical Data Sheet is based on Colmef Monneli’s experience. Colmef Monneli does not accept any liability arising from the use of its products as it has no direct or continuous control over where or how its products are applied. All Colmef Monneli’s Data Sheets are updates on regular basis. It is the user’s responsibility to obtain the latest version.

additional materials
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Technical Properties Sheet
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