Styrene Butadiene Rubber for Repair & Waterproofing

GLOBCON ULTRA SBR is a modified styrene butadiene rubber to be used as bonding agent in liquid consistency. For modifying and improving bonding of floor toppings, renderings and mortars. It is used for repair of spalled concrete - floors, columns, beams, chhajas, slabs & waterproofing of toilets & bathrooms, small terraces etc.

As it bonds strongly to old & new concrete and to plasters, It reduces shrinkage and prevents cracking. Recommendation for Waterproofing, Concrete Repair, Bond Coat, Floor Screed, Renders (Plasters) etc.

Technical Parameters

Appearance Milky White Liquid
pH Value 7.8 - 9
Solid Content 44 ± 1
Specific Gravity 1.01 ± 0.02
Toxicity Non Toxic
Packaging 1, 5, 20, 50, 200 litre containers
Shelf Life & Storage Best before one year from the date manufacture when in sealed pack and stored under proper condition.
Recommendation For Waterproofing, Concrete Repair, Bond Coat, Floor Screed, Renders (Plasters).

Benefits and key Features

Reduces viscosity of cement injection grout for better fluidity & bonding
Good as a bonding agent in repairs & renovations
Increases flexural strength & tensile strength of concrete & mortar
Bond strongly to concrete, masonry, stonework, plasters, ementitious surfaces.
Reduces drying & aging shrinkage cracks.
It is multipurpose & economical product, easy to use


Mixing & Application
  • A forced action mixer is essential (PAN Mixer) & recommended to ensure that GLOBCON ULTRA SBR mortar is thoroughly mixed.Use a suitable sized drum with heavy-duty electrical drill machine fitted with spiral paddle mixer at slow speed of 400-500 rpm.
  • Hand mixing is permissible only for 25 kg or less quantity.
  • Charge the mixer with required quantity of clean & dry sand (or coarse aggregates as needed), cement & mix for 1-2 minutes, then add the recommended dosage of GLOBCON ULTRA SBR dispensed in water which is pre-batched. Mix for 2-3 minutes to avoid air entrapment. Keep on slowly adding water until the required consistency is achieved.
For Waterproofing:
  • For Waterproofing Coating Mix ULTRA SBR in ratio of 1:1.5 (ULTRA SBR : Cement).
  • In order to obtain a smooth consistency cement should be blended slowly in to the liquid.
  • Brush apply the first coat in a single direction.
  • Brush Apply second coat of the mix in span 4-6 hours of on the prepared concrete substrate ap per the ratio of 1:1.5 (ULTRA SBR : Cement).
  • Second coat will be in opposite direction to the first coat at 90°.
  • Min 2 coats required for general purpose.
For Concrete Repair:
  • Mix ULTRA SBR in proportion as follows mix design.
  • Portland Cement 50 kg, Sand 150 kg, ULTRA SBR 6-10 Ltr, Water 10-11 ltr.
  • Mortar consistency 5 to 25 mm thickness.
For Bond Coat:
  • Concrete substrate should be clean & dampened with water.
  • Corrosive area should be remove before applying bond coat.
  • For bonding primer coat mix ULTRA SBR in ratio of 1:1 (ULTRA SBR: Cement)
  • Overlay the repair mortar when the bond coat is sticky.
For Floor screed:
  • Suitable mix ratio for screed & render as follows.
  • Mix design – Portland cement 50 kg, Graded & washed sand – 75 kg, coarse aggregates 6mm down size – 75 kg, ULTRA SBR 6 to 8 Ltr, water 8-12 ltr.
  • 10-40 mm thickness consistency.
For Renders (Plasters):
  • Mix ULTRA SBR in proportion of 50 kg cement, sand - 150 kg, ULTRA SBR 6-7 litres, water 8-10 litres.

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  • 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 added water in the mix designs may need adjusting 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 added water level as appropriate.
  • As water proof slurry 20-25 sq. ft./In two coats.
  • As bonding agent 45-50 sq.ft./kg per coat.
  • As mortar modifier 6-7 litres per 50 kg OPC cement.
  • As Slurry primer approximately 4-5 m2/litre depending on substrate porosity.