Shalimar Seal & Tar Product Industries manufactures Retarding Agent for Cement Concrete. Shalimar Seal & Tar Product Industries is an ISO 9001 certified company offering a wide range of Construction Chemicals and Bitumen based Water proofing products like Plasticizers, Sealants, floorings and coatings. The Retarding Agent for Cement Concrete improves strength and reduces compaction effort and also increases & retains slumps. The Retarding Agent for Cement Concrete is available in a ready to use form that can be directly added to water and also increases workability at low dosage.