Technical notes on joint waterproofing: material selection, installation practice and how to read Chinese test standards. Written by our technical team.
The three waterstop types differ in position, pressure resistance and failure mode. A selection table with measured values to GB 18173.2-2014 and the installation points that decide whether the joint leaks.
One formula for dosage per metre, a table for common joint sizes, and the three time points (skin, full cure, watertight) that decide whether a joint has to be cut out and redone.
Use polysulfide where the joint stays wet; use polyurethane where strength and fast cure matter. Five checks based on measured values to JC/T 483-2022 and JC/T 482-2022.
Tell us the joint width, movement, medium and temperature — we will match the right product and quote ex-works.
