
Adhesion or adhesive behavior of silicone on the sealing side
Many components made of elastomers, such as EPDM, ethylene propylene diene rubber, NBR, silicone, nitrile rubber, and other rubber types, have a dull surface. These surfaces are often sticky and therefore difficult to slide on other surfaces. This can complicate assembly processes and lead to undesirable side effects during use, which is why release agents such as talc and silicone oil are often used.
A slip treatment significantly reduces the friction between a plastic component and its friction partner. This often eliminates the need for release agents, thus eliminating the associated contamination and other disadvantages. Slip-treated plastic parts also exhibit long-term stability during cleaning and sterilization. The reduced stickiness reduces dirt adhesion, thus enhancing the appearance of the products.
Process Background
During intensive sliding treatment, lubricants are embedded in the surface of plastics. They significantly reduce static and sliding friction, as well as stickiness. The simultaneous increase in surface roughness enhances this effect, while the elastomeric properties of the material remain unaffected.
Uses
- For creaking and cracking noises due to high static friction between plastic and friction partners
- For slip/stick effects during sliding movements
- For assembly difficulties
- For parts that require visual enhancement and decorative items, to reduce dirt adhesion
- For stickiness, to eliminate the need for release agents, to improve part separation, to allow statically loaded components to be released again, and to reduce dirt adhesion
- For silicones, to minimize the coefficient of friction and significantly reduce dirt adhesion.