External Rubber Waterstop, also called of back stick rubber waterstop, is mounted on the wet side of a concrete structure. This type of rubber waterstop protects the joints against ingress of mud or any other substance. This type of rubber waterstop also installed in structures where s double tightness system is desired, e.g nulcear power plants or at ramps to motorway tunnels. This type of waterstop is only recommended in open structure as tunnel roofs where air can be trapped within the joint. According to the structure, external rubber waterstop can be classified into with center tube type(EB) and without center tube type(EP). Compared with internal rubber waterstop, external rubber waterstop only has ribs on one side.

External Rubber Waterstop Types

• External Rubber Waterstop – EB Type

External rubber waterstop with center tube(EB)	External rubber waterstop with ribs on one side(EB)

External Rubber Waterstop – EP Type

External rubber waterstop without center tube(EP)	External rubber waterstop with ribs on one side(EP)

Comparison between EB type and EP type

External rubber waterstop without center tube(EP)	External rubber waterstop with ribs on one side(EP)

External Rubber Waterstop Making

External Rubber Waterstop Package

External rubber waterstop is commonly packed with hessian bag and plastic strap, then packed in wooden box. Also can be customized.

Rolling of external rubber waterstop	A roll of 300 x 10 mm external rubber waterstop
External rubber waterstop packed with hessian bag	External rubber waterstop in warehouse