Profile: Chowgule Koster (India) Construction Chemicals Pvt. Ltd. is mainly engaged in waterproofing solutions for new and old constructions. Koster oil removal system is an oil-removal and containment treatment process to rehabilitate concrete surfaces, making them suitable to receive any type of flooring system. The Koster oil removal system comprises of ORS D which is a specially designed chemical based detergent application which penetrates deep into the concrete to remove the contaminants, and the ORS C which is a highly specific gravity based oil resistant epoxy base coat. These provide a combination of removal of the contaminants from deep in the surface, and then providing a barrier for up / down movement of the contaminants.