How to distinguish between good and bad silicone foam gaskets

How to distinguish between good and bad silicone foam gaskets

 

Silicone foam gasket is an auxiliary material for industrial electronic products, which is processed by a die-cutting machine into the desired shape. There are soft silicone foam, medium hardness silicone foam, hard silicone foam and other products.

 

Silicone foam is designed and developed in-house using high-performance composite materials, allowing complete control over the physical, chemical and electrical properties of the product. Protects electronics from shock and high heat damage while providing cushioning and vibration isolation. Reduce maintenance costs from gasket failure due to compression set and softening with superior slow resilience and low stress. Silicone foam provides sealing and gasketing properties for a wide range of applications.

Distinguish silicone foam gaskets

Abrasion resistance

Abrasion resistance is a product formed by silicone foam gaskets. The surface of silicone foam gaskets can suffer from wear and tear. Generally, the surface of silicone foam gaskets rarely rubs off the surface of the product due to external factors, and does not affect the appearance, text, and appearance of performance. color. The characters on the surface of low-quality silicone products are easy to fall off.

 

elasticity

Silicone foam gaskets have good elasticity, because the high elasticity mainly comes from the movement of silicone molecular segments, so when purchasing silicone foam gaskets, first judge the quality from the elasticity.

 

Fatigue resistance

When the silicone foam gasket is subjected to alternating stress (or strain), the phenomenon that the structure and properties of the foam material change is called fatigue. With the progress of the fatigue process, the phenomenon that leads to the failure of the silicone foam gasket is called fatigue failure. Therefore, fatigue resistance is also a method to identify the quality of silicone foam gaskets.

 

Tear strength and tensile strength

Silicone foam gaskets with high tear strength have outstanding damage resistance, long life, and are not easily disturbed by the external environment. The phenomenon of expansion and cracking leading to damage.

 

Hardness and tensile stress

The hardness and the constant elongation stress reflect the important indicators of the rigidity of the silicone foam material, and the two are the forces required for the silicone foam to produce a certain deformation. It is also a method to identify the quality of silicone foam.

 

Rogers Silicone Foam Elastomeric materials offer superior performance, ultra-thin protection for sensitive electronics, and premium silicone foam gaskets for automotive applications.