supply of silicon sealant black, make/model-teroson 8590 or sika 264t or total seal 100 or 3m 8509 or a technically equivalent polyurethane adhesive/sealant specically approved for direct glazing and structural bonding of window glass in rolling stock for vande bharat train. packaging should be in 600ml of container and shelf life should be minimum 12 months from date of supply. , silicon sealant black, make/model-teroson 8590 or sika 264t or total seal 100 or 3m 8509 o a technically equivalent polyurethane adhesive/sealant specically approved for direct glazing and structural bonding of window glass in rolling stock for vande bharat train. packaging should be in 600ml of container and shelf life should be minimum 12 months from date of supply. [ warranty period: 30 months after the date of delivery ] ]