Sika® rode to the rescue when Edinburgh Trams needed to replace its faulty embedded rail joint sealant. On discovering the replacement part had a long lead time, the tram operator instructed contractor Markon to approach Sika® for a speedier solution.
Having worked with Sika® for several years previously, Edinburgh Trams knew that not only are Sika’s® products fit for purpose but also that site support and training in their correct application are included as standard.
Given the tight timescale to complete the job, Sika® recommended its Sikaflex®-406 KC, a one-part, self-levelling, elastic joint sealant with high mechanical and chemical resistance, in this case to diesel. Especially designed for elastic joint sealing between rails, rapid and homogeneous curing throughout the entire sealant was accelerated by the addition of Sikaflex®-406 KC Booster.
As the tram rail is in daily use, timing was critical. The repair would be completed over two nights in May, between the hours of midnight and 4.30am, to avoid service disruption. Beforehand, Sika® provided full training in the product’s application to contractor Markon at Edinburgh Trams’ Cogar depot. This covered how to remove the failed sealant, prepping and priming the affected area, correct mixing of the new sealant and pouring the resin into place.
It was critical the network reopened on time so in line with Sika’s® high standard of aftercare, a Sika® representative was present on-site on both nights to provide assistance and advice.
As a Sika guaranteed solution, Edinburgh Trams has the reassurance that the Sikaflex®-406 KC is likely to last many years maintenance-free.
