Foam rubber profiles
Innovative sealing solutions
Foam rubber is a cellular soft-elastic material made of natural rubber. The unvulcanized compound consists of raw rubber and chemicals. During vulcanization the material blisters and forms a compound cellular structure with a closed outer skin, giving the rubber a durable elasticity.
Development of foam rubber profiles
In the past few years, the trend has moved from solid rubber profiles to co-extruded profiles and then to full foam rubber profiles.
The pressure response of foam rubber profiles leads to a demand for soft profiles for low clamping forces and more solid profiles for higher clamping forces. The softness of foam rubber profiles can be changed by using different compounds and changing the specific weight (density). The specific weight of foam rubber is 0.4 – 0.8 g/ cm³, depending on the composition.
Foam rubber offers the following advantages over other raw materials:
- Lower thermal conductivity
- Highly effective system sealing
- Tight radii without deformation
- Good cornering, can be used circumferentially
- Very good resilience
- Permanent elasticity with low clamping forces