PRi LATEX SBR
PRiBOND S PRi LATEX SBR is modified Styrene butadiene Rubber emulsion specially designed for use as a bonding agent. It is suitable as an admixture for obtaining waterproof concrete, plasters and mortars it is also suitable for preparation of repair mortars. Damaged and spalled concrete repair of large cracks.
Styrene Butadine Rubber Latex Emulsion For Bonding
Cleaning
Tools and equipment should be washed with water immediately after use.
Packing
1 ltr, 5 ltr & 20 ltr container.
Shelf Life & Storage
12 months if sealed packing and if stored in cool dry place in shaded area
- Concrete repair and adhesive mortar, screed.
- Roof Finishing.
- Rendering and coating.
- To be used as bonding agent for old concrete to new concrete.
- As a Bond coat before commencement of repair work.
- Single component, gauged as required.
- Simple to use.
- Provides excellent bond to concrete, adhesion plaster, masonry, stone work, etc.
- Provides waterproof screeds, plasters.
- Improved tensile and flexural properties strength allows thin applications.
- Compatible with all common hydraulic cements.
- Economical to use.
- Gives weather resistant mortar with improved durability impermeability to chlorides and other harmful agents.
The base must be clean and free from loose particles. Unsound areas should be removed until sound concrete is located. Any cracks, pot holes etc should be properly sealed and cured. The surface to be treated should be free from all coatings dust and unsound concrete toppings. The unsound parts should be chipped off to arrive at sound surface. Smooth substrates must be mechanically roughened e.g. by scrabbling, needle gun or grit blasting to provide an adequate key. Corroded reinforcing steel should be exposed around its full circumference and cleaned to remove all loose scale and corrosion deposits. It is always preferably to clean the steel to a bright condition. Use of emery cloth, grit or sand blasting.
50 Kgs- cement
145 Kgs – Zone II sand
10 Kgs – PRi LATEX SBR
10 – 13 liter – Recommended water
10 mm – 30 mm – recommended thickness
Mix the total mass till proper mixing of PRi Latex SBR with a proper consistency is achieved.
Cement – 50 kg
4 mm Granite chips : 75 kg
Zone II sand : 75 kg
PRi LATEX SBR : 10 Kgs
Recommended Water addition 6-10 litres
Recommended Thickness: 12mm – 24 mm
The screed should be of a semi-dry cohesive consistency.
- 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 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 river sand is recommended. Where wet sand is used, reduce the added water level as appropriate.
- In order to prevent rapid drying, mortars should be properly cured curing compound.
- Protect uncured mortar from frost.
- Do not retemper mortar or primer after initial set.
- Minimum application temperature is 10 ̊C.
Base | Modified SBR emulsion |
Color | Milky White |
Specific Gravity | Approx.1.02 gm/cc |
Solid Contents | 34% |
pH Value | 10.5 – 11.5 |
Viscosity | 120 Mpa |
Specific Gravity | app. 1.00 |
Surface Tension | app 50 mN/m |
Glass transition Temperature | -6 ̊C / 21.2 ̊F |
Minimum film form temperature | 0 ̊C / 32 ̊ F |
Breaking Load | 4.0 N / mm2 |
Properties | Typical mechanical properties of 1: 3 cement sand mortar at W/C – 0.45 for control and W/C – 0.35 for mortar containing PRi LATEX SBR (10 liters / 50 kg cement). Tested in accordance with BS 6319 & wet cured. |
Mechanical Properties |
|
Compressive Strength (kg/cm2) |
|
3 days | 115 – 125 |
7 days | 130 – 145 |
130 – 145 | 130 – 145 |
28 days | 200 – 220 |
Tensile Strength (N/mm2) @ 28 days | 25 – 32 |
Flexural Strength (N/mm2) @ 28 days | 40 – 50 |
PRi LATEX SBR should not come in contact with skin and eyes or be swallowed. Protective gloves and goggles should be worn. PRi LATEX SBR should not come in contact with skin and eyes or be swallowed. 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.