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Products that perform beyond expectation

by Tania Wannenburg
Sika Jnl 6 15

A large project requires a range of products that are able to perform regardless of the challenges faced onsite.

When a flooring refurbishment at Eskom/Rotek strategic workshops in Rosherville, Germiston South, Gauteng, was needed, products from Sika’s high-performance industrial flooring range were specified. Rotek Industries, a wholly owned subsidiary of Eskom, is an energy and utilities industry service company.

The working area at Rotek covers thousands of square metres of floor space all under cranage with a maximum lift of 50 tons. The flooring preparation commenced with crack repairs using Sikadur-52 ZA, a two-part, solvent-free, low-viscosity injection liquid based on high-strength epoxy resins.

Extensive joint sealing of the floors was achieved using Sikaflex-11 FC+, a one-part, moisture-curing, elastic joint sealant and multi-purpose adhesive, based on polyurethane. For remedial work, Sika’s high-performance Sikagrout-212 was used. This ready-to-mix powder with adjustable consistency provides excellent flow characteristics, rapid strength development and high final strengths.

Floors were primed using Sikafloor-161, a two-part, low-viscosity epoxy resin primer providing good penetration and excellent bond strength. The vast floor areas were then coated with Sika’s internationally approved, high-strength, resin-rich Sikafloor-20 N PurCem (light grey, 9mm thick). This three-part, water-dispersed, polyurethane-modified cement and aggregate screed, suitable for floors subjected to heavy loading, abrasion and chemical exposure, is non-taint, odourless and VOC-free.

A roof cladding project coinciding with the crack repairs and application of Sikafloor-20 N PurCem created a highly challenging situation for the contractor. Once completed, three areas measuring 4 600m2, 700m2 and 1 700m2 had been coated at 9mm thick. This is a total of 6 700m2 and the project is ongoing.

Due to the sheer efficacy of these products, a massive flooring project, under difficult circumstances, evolved into a success story for Sika.

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