In areas e.g. petrol station or containment bunds chemically and mechanically highly resistant sealants are necessary. Special sealants with a very high chemical resistance are necesary in areas like petrol station or segmental steel tanks.
Sikaflex®-2c SL

Two-component, self-leveling, polyurethane elastomeric sealant
Sikaflex® PRO-3

Polyurethane sealant for floor joints and civil engineering applications