supply of polyurethane based sealant sikaflex 221 , polyurethane based sealant sikaflex 221 (grey/white) of m/s sika india or terosonpu 9 2 of m/s henkel or equivalent conforming to clw specification no. clw/es/3/0175 alt- 9 . pack size of 600 m l cartridge (in case of pack size is 310 ml cartridge then required qty. will be multiple of 2 of t ender qty). note:- as per para 10.2 clw specification no. clw/es/3/0175 alt- 9, t enderer may quote equivalent material stating the full technical parameters and product certification by national/ internat ional standard organization and approval for application by govt. /psus. only when equivalent materia l is matching to equivalent to clw approved pu based sealant sikaflex or teroson product, this shall be considered for approval. [ warranty period: 12 months after the date of delivery ] ]