CEMA Water Repellent Protective Grease - 50 ml CEMA water-repellent protective paste is suitable for mounting steering bearings, bottom bracket bearings and wheel bearings, among others. Use the sealing paste as an additional sealant to protect your bearings from water and dirt, reducing bearing wear. It does not replace bearing grease, but can be used for added protection. Use CEMA assembly paste for assembling threaded connections.