We have various of rubber compound available as below for different applications.

Polytetrafluoroethylene (PTFE), is commonly known as Teflon®. It is a high-performance fluoropolymer material renowned for its exceptional chemical stability and extremely low coefficient of friction. Selecting PTFE as a surface coating for rubber components effectively compensates for the inherent limitations of rubber substrates, granting the final product superior overall performance.

OBT Company specializes in providing various rubber sealing solutions including PTFE coating on rubber surfaces. This coating can specifically reduce surface friction and significantly improve durability performance.

Here are the five key benefits of the PTFE coating:

1. Lubrication for Easier Assembly, Reduced Insertion Force: The PTFE coating provides an extremely low coefficient of friction (typically between 0.04-0.1), which significantly reduces frictional resistance during the assembly of rubber parts. For instance, for seals, duct connectors, or other applications requiring precise fitting, applying a PTFE coating can greatly lower the insertion force, improve assembly efficiency, and reduce wear.
2. Color Coding for Easy Probe Identification:  By adding pigments, OBT’s PTFE coatings can be supplied in various colors (e.g., blue, green). This facilitates quick identification and sorting by automated equipment or manual visual probes. This feature is particularly important in fields like medical catheters and industrial seals where precise model differentiation is required.
3. Enhanced Wear, Corrosion, Aging, and High/Low-Temperature Resistance:  Specific PTFE coating formulations can effectively barrier chemicals, ozone, and UV radiation, extending the service life of rubber products in harsh environments. With a wide operating temperature range (from -200°C to +260°C) and a relatively hard surface, these coatings are especially suitable for components in automotive, aerospace, and other industries that must withstand extreme temperatures and mechanical abrasion.
4. Elimination of Surface Tackiness:  Some rubber materials (like certain silicones or natural rubber) can become surface-tacky over time or under high temperatures, affecting feel and potentially attracting contaminants. The PTFE coating forms a dry, smooth, non-stick surface that completely eliminates this issue, maintaining a pleasant tactile feel for the product.
5. Resistance to Contaminant Adhesion, Benefiting Cleanliness Control: Unlike traditional silicone oil lubrication, which can migrate, PTFE coatings are solid and firmly bonded, making them less likely to attract and adhere to particles like dust or lint. This characteristic is crucial in applications with high cleanliness requirements, such as medical devices, food machinery, and the electronics industry, as it reduces contamination risks and simplifies cleaning processes.

In summary, through its unique physical and chemical properties, PTFE coating provides a versatile surface solution for rubber products, offering both performance enhancement and process optimization value. 

OBT’s expertise in applying these coatings according to different application and customer specification. For instance, different coating thinckness and different PTFE are needed to be defined.

Thanks to contact us for your requirement on rubber seal coatings .