SikaLatex®-141

Styrene and butadiene by high pressure emulsion polymerisation. The latex consists of microscopic particles of synthetic rubber dispersed in an aqueous solution. SikaLatex®-141 modified mixes may be slightly darker than corresponding unmodified mixes.

12 months from date of production if stored properly

Store properly in undamaged original sealed packaging, in dry cool conditions at temperatures between 5°C and 30°C. Protect from direct sunlight, contamination and moisture.

~1.02 kg/l

≤ 0.1 %

Unless otherwise stated typical properties are based on a 3:1 sand/cement mix in which 10 L of SikaLatex®-141 per 50 kg of Type I OPC cement has been incorporated.

SikaLatex®-141 is specifically designed for use with Portland cements. It is also compatible with sulphate-resisting cement, Types II and V. Lime (more than 10 % cement weight), air entraining agents and masonry cement must not be used in conjunction with SikaLatex®-141.

For use with other cements, please consult our Sika Technical Department.

For all normal use, the standard dose of 5 L of SikaLatex®-141 per 50 kg cement is adequate.

For extreme conditions and/or when adhesion, waterproofing, water vapour resistance or chemical resistance are critical, the dosage should be increased to 10 L of SikaLatex®-141 per 50 kg cement. For this higher dosage, the extra water addition required is low and the use of wet aggregate may result in excessive workability.

Mix SikaLatex®-141 with the correct amount of water to produce a gauging solution.
Pour part of the gauging solution into a suitable mixing container. While stirring slowly, add the cements and mix to the gauging solution and mix thoroughly until a smooth, uniform and lump-free mix is achieved.
Within the mixing time add additional gauging solution to adjust to the desired consistency.

For use as a bonding slurry or waterproof coating mixing is best achieved using a slow speed drill and paddle. Hand mixing is only permissible when the total weight of the mix is less than 25 kg. Prepare a bonding slurry of 1½ to 2 parts cement to 1-part SikaLatex®-141, mixed to a lumpfree creamy, consistency.
For renders, repair mortars, and floor screeds and similar aggregate or sand filled mortars, mixing should be in an efficient concrete mixer preferably a pan type mixer. Charge the mixer with the required quantity of sand, aggregate and cement and premix for approx. 1 minute. Add the SikaLatex®-141 and mix for 2 minutes only, to avoid excessive air entrapment. Then add the water slowly until the required consistency is achieved (avoid adding excessive water). 

All tools should be cleaned with water immediately after use. If delayed, use of soap and coarse wire wool may help. Solvents such as white spirit can be used to remove partially hardened mortar.