What Are the Different Types of Silicone Gaskets?

Silicone mats are a class of products that have more market demand in silicone products. It has certain tension, flexibility, excellent insulation, pressure resistance, high temperature resistance, low temperature resistance, stable chemical properties, environmental protection and safety, and no odor. Food-grade silicone pads are non-toxic and odorless, insoluble in water and any solvents. A highly active green product.

Silicone pad

Silicone mats are a class of products that have more market demand in silicone products. Has the characteristics of silica gel

Silicone pads can be divided into three categories according to the unique characteristics of silicone and different application areas:

High reliability

High compressibility , soft and flexible

Low thermal conductivity

Natural adhesive, no additional surface adhesive required

Meet ROHS, SGS and UL environmental requirements certification

A variety of color choices, bright colors and customizable shapes.

The raw materials are 100% food-grade environmental protection silica gel.

Low carbon and environmental protection, non-toxic and tasteless, soft, non-slip, shock-proof, water-proof, heat-insulating, not easy to age, not easy to fade, easy to clean.

Durable, effectively protects the furniture surface from being burned or scratched.

Temperature resistance range: -40 to 230 degrees Celsius. Baking and freezing remain soft and not deformed.

Some silicone pads must meet the US FDA food-grade testing standard: 21 CFR 177.2600.

Filling between circuit board and heat sink

Filling between IC and heat sink or product case

Filling between IC and similar heat dissipation material (such as metal shield)

As a cushion pad for machine connection in industry, it is resistant to friction and sealed.

Transparent silicone pads are beautiful in appearance, with anti-shock, anti-slip, anti-collision, anti-scratch functions, and high transparency. They are widely used in plexiglass, glass crafts, display stands, household appliances, furniture products, hardware accessories, transparent plastic products

Silicone pad viscosity

Explanation of technical terms: the volumetric properties of liquids, quasi-liquid or quasi-solid substances that resist flow, that is, internal friction or internal resistance between molecules when flowing under the action of external forces. Normally viscosity and hardness are directly proportional.

Silicone pad hardness

The ability of a material to locally resist the intrusion of hard objects into its surface is called hardness. Silicone rubber has a Shore hardness range of 10 to 80, which gives designers full freedom to choose the hardness required to best achieve a specific function. Mixing polymer substrates, fillers and auxiliaries in different proportions can achieve various intermediate hardness values. Similarly, the time and temperature of heat curing can also change the hardness without destroying other physical characteristics.

Silicone mat tensile strength

Tensile strength is the force required to cause a piece of rubber material to tear in each range unit. The tensile strength range of thermally vulcanized solid silicone rubber is between 4.0-12.5MPa. The tensile strength range of fluorosilicone rubber is between 8.7-12.1MPa. The tensile strength of liquid silicone rubber ranges from 3.6-11.0MPa.

Tear strength of silicone pad

Resistance to enlarging incisions or nicks when applying force on a notched sample. Even after being cut and placed under extremely high torsional stress, the heat-vulcanized solid silicone rubber can not be torn. The tearing strength range of hot sulfurized solid silicone rubber is between 9-55 kN / m. The tear strength of fluorosilicone rubber is between 17.5-46.4 kN / m. The tear strength of liquid silicone rubber ranges from 11.5-52 kN / m.

Silicone mat elongation

Usually refers to "limit elongation at break" or the percentage increase from the original length when the sample broke. Thermally vulcanized solid silicone rubber generally has an elongation in the range of 90 to 1120%. Fluorosilicone rubber generally has an elongation between 159 and 699%. Liquid silicone rubber generally has an elongation between 220 and 900%. Different processing methods and choice of hardeners can greatly change their elongation. The elongation of silicone rubber has a lot to do with temperature.

Silicone pad operation time

The operating time is calculated from the moment the colloid is added to the vulcanizing agent. This operation time and the subsequent vulcanization time are not completely bounded. The colloid has undergone a vulcanization reaction from the moment the vulcanizing agent is added. This operation time means that the product's 30-minute vulcanization reaction can not affect the quality of the finished product. Therefore, the more time saved during product operation, the better for the finished product.

Silicone pad curing time

In some places it is said to be curing time. In other words, after such a long period of time, the vulcanization reaction of the silica gel has basically ended. This is basically over, which means that the product is ready for use, but in fact, a small part of the curing reaction is not over. Therefore, products made of silicone rubber, such as silicone molds, are usually put into use for a period of time.