Sika Latex power

DESCRIPTION

SikaLatex Power is a latex-based, water-resistant

multipurpose admixture for use in areas subject to humidity,

dampness and continuous water contact.

When added to cement mixtures, it improves water

resistance and bonding strength by forming a reinforcing

polymer that increases long term durability and

flexibility of the mix. It is fully soluble in water and is

to be added directly to the gauging water of m ortar,

concrete or cementitious grout.

USES

SikaLatex Power is used as bonding agent, waterproof

coating and site-mix mo tar admixture for the

following applications:

Bonding of rendering and coating layers

Bonding between successive concrete casts

Cement grouting and screeds

Polymer modified repair m ortars

Masonry mo rtars

Renders

Tile fixing and panelling

Waterproof plastering

Waterproofing of roof slabs, sunken slabs, basements,

retaining walls, water tanks, sunshades etc

Treatment for leaching and saltpetre action

CHARACTERISTICS / ADVANTAGES

Multipurpose 7-in-1 application

Makes the m ortar waterproof

Improves resistance to salt permeation

Improves toughness and flexibility and reduces

cracking

Good adhesion to substrates like concrete, stone,

brick etc.

Reduces viscosity of cement injection grout and improves

bond of cured injected materials with substrates

Dilute with water up to 6 times depending on the

type of application

Reduces surface dusting of concrete

Improves chemical resistance of concrete

Improves frost resistance

Good resistance to water and water vapour

Reduces water cement ratio for equivalent workability

Mixes may be applied in much thinner sections

PRODUCT INFORMATION

Chemical base Styrene butadiene rubber (latex) emul sion

Packaging 250 g, 500 g, 1 kg, 5 kg, 10 kg, 20 kg, 50 kg, 100 kg container

Shelf life 18 months from date of production

Storage conditions The product must be stored properly in undamaged and unopened original

sealed packaging, in dry conditions at temperatures between +5 C and

+35 C. Protect from frost and direct sunlight.

Appearance / Colour Liquid / Milky white

Specific gravity ~1.02

pH-value 8 1

APPLICATION INFORMATION Consumption Application area Mixing ratio Consumption of mixture Consumption of SikaLatex Power Waterproofing coating SikaLatex Power : Water : Cement = 1 : 3 : 8 ~350 g/m2 per coat ~30 g/m2 per coat Bonding coat SikaLatex Power : Water : Cement = 1 : 2 : 6 ~350 g/m2 in single coat ~40 g/m2 Repair mort ar SikaLatex Power : Water : Cement : Sand = 1 : 4 : 8 : 32 ~2000 kg/m3 ~45 g/m2 per mm thickness Masonry jointing SikaLatex Power : Water : Cement : Sand = 1 : 5.5 : 10 : 40 ~1950 kg/m3 ~35 g/m2 for 10 mm thick m ortar Crack filling SikaLatex Power : Water : Cement : Sand = 1 : 4 : 10 : 30 ~100 g/m ~5 g per linear meter of crack Polymer concrete or Screed SikaLatex Power : Water = 1 : 4 (Cement, sand, aggregate as per grade) ~2300 kg/m3 ~10 % by weight of cement Polymer cement injection grout SikaLatex Power : Water = 1 : 6 (Cement, sand, aggregate as per grade) ~1800 kg/m3 ~7 % by weight of cement NOTE: The above stated consumption depends on substrate condition, porosity, level, application skills and mixing ratios. Mix consistency may change with the quality of sand and cement, hence gauging water may be adjusted slightly based on site conditions. Additional plasticising admixture may be necessary for concrete, screed or grouting applications to maintain desired workability. Ambient air temperature +5 C min. / +40 C max. Substrate temperature +5 C min. / +40 C max. Application time ~20 to 30 minutes at +30 C when used as coating, mor tar or bonding agent BASIS OF PRODUCT DATA All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control. ECOLOGY, HEALTH AND SAFETY User must read the most recent corresponding Safety Data Sheets (SDS) before using any products. The SDS provides information and advice on the safe handling, storage and disposal of chemical products and contains physical, ecological, toxicological and other safety-related data.

SUBSTRATE PREPARATION Dust, loose or friable particles, rust, scale, paint, cement laitance, old coatings and any other contaminants or deleterious materials which reduces bond or contributes to corrosion shall be removed by suitable means before application. Smooth substrates must be mechanically roughened by scabbling, needle gun or grit blasting to provide an adequate key. Cementitious substrates should be pre-saturated surface dry (S SD) with clean water at least 2 hours before any application. MIXING Mix SikaLatex Power with the correct amount of water to produce a gauging solution. 1. Pour part of the gauging solution into a suitable mixing container. 2. While stirring slowly, add the cement or cementsand mix to the gauging solution and mix thoroughly until a smooth, uniform and lump-free mix is achieved. 3. Within the mixing time add additional gauging solution to adjust to the desired consistency. Mix either by hand or with a low speed drill for not more than 2 minutes. 4. NOTE: When a concrete-mixer is used, pour the mor tar as soon as its consistency is cohesive. Do not run the mixer too long. APPLICATION IMPORTANT Avoid application in direct sun and/or strong wind. IMPORTANT Protect freshly applied material from rain etc. IMPORTANT During application, the mixture of SikaLatex Power and cement needs to be continuously stirred to prevent the cement particles from settling. Waterproofing coating Thoroughly pre-wet the prepared substrate. Keep the surface wet and do not allow to dry. 1. Before application remove excess water e.g. with a clean sponge. The surface shall appear a dark matt appearance without glistening and surface pores and pits shall not contain water. 2. Prepare the waterproofing coating as indicated in the consumption table. Using a stiff clean brush spread the coating vigorously onto the substrate, forming a thin layer. 3. After 2 to 6 hours, apply the second coat in crosswise direction to first coat. Standard coating system can be further reinforced by placing glass fabric layer Sika Fabric-50 in between first and second coat. 4. 5. Protect with screed on top for longer life. NOTE: In areas of severe water penetration, three coats might be required. Bonding coat IMPORTANT Never use pure SikaLatex Power or SikaLatex Power-water mix directly onto the substrate as bonding agent, always add cement and sand to the mix. Thoroughly pre-wet the prepared substrate. Keep the surface wet and do not allow to dry. 1. Before application remove excess water e.g. with a clean sponge. The surface shall appear a dark matt appearance without glistening and surface pores and pits shall not contain water. 2. Prepare the bonding coat as indicated in the consumption table. Using a stiff clean brush work the mix vigorously onto the substrate, forming a thin layer filling all unevenness, pits and pores. 3. When the bond coat is still fresh and sticky, apply the m ortar or concrete. Vibrate carefully to achieve satisfactory interpenetration of mo rtar and concrete. 4. Polymer m ortar or Waterproof plaster Prepare the polymer morta r as indicated in the consumption table. 1. 2. Apply a thin layer of polymer mo rtar as given above. Apply the m ortar onto the surface in a layer of max. 20 mm thickness. 3. Cured  morta r or plaster with SikaLatex Power would harden faster and would be watertight. For higher thickness, apply in multiple layers at intervals of 12 hours. 4. Masonry jointing Thoroughly pre-wet the prepared substrate. Keep the surface wet and do not allow to dry. 1. Before application remove excess water e.g. with a clean sponge. The surface shall appear a dark matt appearance without glistening and surface pores and pits shall not contain water. 2. Prepare the jointing mort ar  as indicated in the consumption table. 3. Apply the bonding coat as indicated in the consumption table. Using a stiff clean brush work the mix vigorously onto the substrate, forming a thin layer filling all unevenness, pits and pores. 4. When the bond coat is still fresh and sticky, apply the jointing mo rtar. 5. 6. Finish as required soon after application. Crack filling 1. Open the crack lines to form a V groove of ~10 mm. Prepare the crack filler as mentioned in the consumption table to make a putty by using marble dust or very fine sand. 2. Apply to the cracks and finish with level to the surface. 3. Polymer concrete or Screed Thoroughly pre-wet the prepared substrate. Keep the surface wet and do not allow to dry. 1. 2. Before application remove excess water e.g. with a

clean sponge. The surface shall appear a dark matt appearance without glistening and surface pores and pits shall not contain water. Prepare the bonding coat as indicated in the consumption table. Using a stiff clean brush work the mix vigorously onto the substrate, forming a thin layer filling all unevenness, pits and pores. 3. Prepare the concrete or screed as indicated in the consumption table. When the bond coat is still fresh and sticky, apply the concrete. Vibrate carefully to achieve satisfactory interpenetration concrete or screed. 4. Polymer cement injection grout 1. Open the crack lines to form a V groove of ~10 mm. Seal the cracks with Sika MonoTop-108 Water Plug IN mo rtar or Sikadur-31 IN. 2. Fix appropriate nozzles spaced at regular intervals along groove length with Sika MonoTop-108 Water Plug IN mort ar or Sikadur-31 IN. 3. Prepare a cement grout slurry as indicated in the consumption table. 4. 5. Inject the grout as per standard grouting practice. CURING TREATMENT Avoid rapid evaporation of the water from mo rtars prepared with SikaLatex Power. Cover the surface with a polyethylene film, use wet burlap, gunny bag or hessian cloth or water misting or apply Sika Antisol curing compound. Cure for minimum 35 days. DO NOT pond with water before 5 days of curing. During adverse weather conditions (high temperatures, low relative humidity, wind, sun etc.) take particular care with curing treatment. CLEANING OF TOOLS Clean all tools and application equipment with water immediately after use. Hardened or cured material can only be removed mechanically. LOCAL RESTRICTIONS Note that as a result of specific local regulations the declared data and recommended uses for this product may vary from country to country. Consult the local Product Data Sheet for exact product data and uses. LEGAL NOTES The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika's current knowledge and experience of the products when properly stored, handled and applied under normal conditions in accordance with Sika's recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the products suitability for the intended application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request