Teflon Coating Service Supplier In China
Teflon (PTFE) coating is a high-performance fluoropolymer finish renowned for its exceptional non-stick (low coefficient of friction), chemical inertness, and high-temperature resistance properties. This spray-applied and thermally cured coating is the premier choice for applications requiring smooth, low-friction surfaces and protection against corrosive chemicals. As a specialized industrial supplier in China, Celerity Precision offers expert application of Teflon coatings to precision-machined parts, providing a comprehensive solution for components used in industrial machinery, medical devices, and food processing equipment.
For a durable, low-friction, and chemically resistant finish, choose Celerity Precision for your Teflon coating needs.
Your Teflon Coating Finish Manufacturer
At Celerity Precision, the application of Teflon coating is a precise, multi-stage manufacturing process, not just a simple paint job. We are a manufacturer that controls the entire process to ensure maximum adhesion and performance. Our process begins with critical surface preparation, typically including degreasing and grit blasting, to create the optimal profile for the coating to bond to. The liquid Teflon dispersion is then expertly spray-applied by our skilled technicians to a controlled thickness, followed by a high-temperature curing cycle in our calibrated industrial ovens, which permanently bonds the fluoropolymer to the part’s surface.
By managing both the CNC machining and the technical coating application under one roof, we provide an unparalleled level of quality control and efficiency. We understand the importance of masking critical threads and surfaces and can design custom fixtures to ensure uniform coverage on complex parts. Our integrated expertise means we can advise on the best substrate and surface preparation for your specific application, guaranteeing the final Teflon coated component delivers the non-stick, low-friction performance you require.
Don’t settle for a disconnected supply chain. Upload your project to Celerity Precision for a single-source quote on fully machined and Teflon coated components.
Teflon (PTFE) Coating: Technical Specifications
| Feature | Description |
| Surface Roughness (Ra) | Covers Original Surface. The final Ra is determined more by the coating itself than the substrate. It creates a smooth, waxy feel. A smoother substrate will result in a smoother final coated surface. |
| Applicable Materials | Can be applied to most metals, including Aluminum, Steel, Stainless Steel, and Brass. Surface preparation (grit blasting) is required for proper adhesion. |
| Cosmetic Availability | Functional. While the finish is uniform, its primary purpose is functional (low friction, chemical resistance). Colors are typically limited to dark green, black, or grey. |
| Visual Appearance | A smooth, uniform, low-gloss, or matte finish with a distinct waxy or slick appearance. The color is typically a dark, opaque shade characteristic of the specific fluoropolymer blend used. |
Advantages of Teflon (PTFE) Coating Surface Finish
Lowest Coefficient of Friction
Provides an exceptionally slick, non-stick surface, ideal for reducing friction on sliding components, molds, and chutes.
Excellent Chemical Resistance
The coating is inert to most industrial chemicals and solvents, offering superior protection in corrosive environments.
High-Temperature Stability
Can operate continuously at high temperatures (typically up to 260°C / 500°F), far exceeding standard paints.
Non-Wetting and Easy to Clean
The hydrophobic and oleophobic properties mean the surface repels both water and oil, making it very easy to clean.
Electrical Insulation
Teflon is an excellent electrical insulator with a high dielectric strength.
Abrasion Resistance
While the coating is soft, certain formulations are reinforced with other materials to provide good abrasion resistance for industrial applications.
Teflon (PTFE) Coating Design Considerations
Coating Thickness
Standard coating thickness is typically 0.02mm to 0.05mm. This build-up must be factored into the initial part dimensions for tight-tolerance assemblies.
Surface Preparation
The process requires abrasive blasting of the surface prior to coating for proper adhesion. This will alter the original machined finish.
Line of Sight Application
As a spray-on coating, it is most effective on external surfaces. Deep, narrow internal bores or complex hidden cavities can be difficult to coat uniformly.
Sharp Edges
Sharp external edges can result in a thinner, less durable coating. A small radius on corners is recommended to ensure robust coverage and prevent chipping.
FAQ
Is Teflon coating the same as PTFE?
Yes. Teflon is a brand name owned by Chemours for a family of fluoropolymers, the most common of which is PTFE (Polytetrafluoroethylene).
How durable is a Teflon coating?
It is a “soft” coating compared to hardcoat anodizing, but industrial formulations are designed to be durable and abrasion-resistant for their intended applications. Durability is excellent when not subjected to sharp, hard impacts.
Will the coating peel or flake off?
When applied correctly over a properly prepared surface, the coating forms a very strong bond and will not peel or flake under normal operating conditions.
Can you coat any material?
It can be applied to most common metals. It is generally not applied to plastics.
How much does Teflon coating add to the dimensions?
A typical industrial coating adds about 0.02-0.05mm (0.0008″-0.002″) per surface. We account for this during the manufacturing process.
Can you mask threads and other features?
Absolutely. Masking is a critical step in our process to protect threads and any other surfaces that must remain uncoated and dimensionally precise.
What colors are available?
The most common colors for industrial Teflon coatings are dark green and black. Color options are limited as it is primarily a functional, not decorative, finish.
Is Teflon coating food safe?
Specific formulations of Teflon coatings are FDA-compliant and certified for food contact applications. Please specify if your part requires this certification.
How is Teflon coating applied?
It is a liquid that is sprayed onto a grit-blasted part and then cured at high temperature in an oven to bond it to the surface.
ow do I specify Teflon coating on my drawing?
Simply state “Finish: Teflon Coat, Black” (or desired color). If you know the specific type of coating required (e.g., “PTFE Coating, 0.03mm thick”), that is even better.