Architect and Builder July/August 2015 | Page 128

SIKA SEALS NEDBANK FLOORS Sika recently supplied one of its internationally approved flooring systems for a large underground rehabilitation project at Nedbank in Selby, Johannesburg. W hen Nedbank Refurbishment Works requested maintenance for the bank’s basement and generator room floors, Sika representative, Chad Tosen specified Sikafloor-263 SL ZA, a two-part, multi-purpose binder based on epoxy resin. Its many approvals include certificates for particle emission and outgassing emission, important factors for a closed environment project such as this one. Sikafloor-161 Industrial flooring specialists, Seal Con Systems were awarded the contract. The floor areas were primed with Sikafloor-161, a two-part, solvent-free epoxy resin for normal to strong absorbent substrates. Its low viscosity allows for good penetration while excellent bond strength is achieved. It may also be used as a binder for leveling mortars and mortar screeds and as an intermediate layer. Sikafloor-263 SL ZA After the advantageous short waiting times of Sikafloor-161, the floors were coated with Sikafloor-263 SL ZA, 1mm thick (colour RAL 7036). This highly fillable, self-smoothing and broadcast system is liquid-proof and provides good chemical and mechanical resistance. A slip resistant surface is possible if required. Sikafloor-263 SL ZA is suitable for concrete and cement screeds with normal to medium-heavy wear and the broadcast system is recommended for multistorey and underground car parks. Overcoming the cold environment in the basement areas proved challenging as it was critically important to ensure adequate product flow. By completion of the project the areas covered were over 3,500m2. Despite the cold conditions, this economical Sika flooring system was easily installed giving Nedbank the peace of mind that the bank’s underground areas have been sealed with products of the highest quality. Sika AG Corporate Profile Sika AG, is a globally active specialty chemicals company with its South African Head Office based in Durban, and branches in all major SA cities. Sika AG, located in Baar, Switzerland, supplies the building and construction industry as well as manufacturing industries (automotive, bus, truck, rail, solar and wind power plants, façades). Sika is a leader in processing materials used in sealing, bonding, damping, reinforcing and protecting load-bearing structures. Sika’s product lines feature high-quality concrete admixtures, specialty mortars, sealants and adhesives, damping and reinforcing materials, structural strengthening systems, industrial flooring as well as roofing and waterproofing systems. Worldwide local presence in 80 countries and some 15,200 employees link customers directly to Sika and guarantee the success of all partners. Sika generated annual sales of CHF 5.57 billion in 2014 and a net profit of CHF 441 million. Web: www.sika.co.za 26 Advertorial