Silicone sponge rubber O-ring cord

Having all the useful properties of silicone rubber, silicone sponge cords are also able to absorb vibrations. That makes it highly demanded in sealing junctions with regular incentive mechanical impact.

Generally, silicone sponge cords have substantially smaller density and weight in comparison with regular silicone cords, but compression set characteristics are the same. It means that cords can keep their geometrical shape even in rough working conditions with active and incentive mechanical impact.

Our specialised silicone sponge extrusion lines allow us to achieve excellent physical properties including extremely low water absorption (<1%) preventing water, and dust ingress. This is possible due to a uniformed closed cell structure. The sponge cord has outstanding sealing properties due to its high compression force deflection (CFD), however we have the capabilities and material formulations to cater for low CFD if the application requires it.

Features

Silicone sponge and foam cord can be used in a wide range of applications due to its high temperature durability, variable densities and sizes. 

For example:

● High temperature sealing

● Door / oven seals

● Packaging and food processing machinery seals

● General sealing across industries

Specification

● 2mm up to 50mm diameter

● Densities from 200kg/m³ (soft) to 530 kg/m³ (firm)

● Excellent Ozone, UV and weathering resistance

● Closed Cell

● Thermally stable over a wide range of temperatures (-60°C to 230°C)

● Available in white, red, grey and black,etc.