Hand built rubber expansion joint requires no gasket or packing cost. It weighs less and save space for storage and installation. Also, labour hours are reduced for installing the joints.
Hand built rubber expansion joints are more desirable than metal joints because of their greater flexibility in axial compression, elongation, eccentric displacement and angular movement simultaneously.
Hand built rubber expansion joints can effectively dampen down the transmission of vibration and sound.
The high quality rubber material causes no corrosion, no electrolytic action and no embrittlement.