851G-255 Black – Teflon PTFE High Film Build Waterborne Topcoat

描述

851G-255 Black is a high film build PTFE (polytetrafluoroethylene) waterborne topcoat from Chemours’ Teflon industrial coatings portfolio, genuinely manufactured by Chemours and imported as original product. As an authorized distributor and trader, we supply genuine material with full traceability and direct access to official Chemours technical documentation.

This black topcoat is part of a two-coat or three-coat system and is specifically formulated for heavy-duty applications requiring thicker film build. It provides outstanding non-stick release properties, low coefficient of friction, and excellent thermal stability at continuous service temperatures up to 260°C (500°F) .

851G-255 Black is a high film build grade with a recommended DFT of 0.8 – 3.0 mils per coat and a maximum total film build of 8.0 mils. It features antistatic properties, making it the preferred choice for aerospace components.

With regular stock availability, we support both trial orders and large‑volume bulk shipments for aerospace, automotive, industrial, chemical processing, and heavy-duty non-stick applications.

Key Features of 851G-255 Black

• High Film Build – Recommended DFT of 0.8 – 3.0 mils per coat; maximum total film build of 8.0 mils

• Excellent Non-Stick Release – Provides outstanding release properties for heavy-duty industrial and mold applications

• Low Coefficient of Friction – Reduces friction and wear in moving parts (0.05 – 0.20)

• High Temperature Resistance – Continuous service temperature up to 260°C (500°F) 

• Antistatic Properties – Preferred choice for aerospace components and static-sensitive applications

• Black Color – Easy identification and process control for industrial applications

• Waterborne Formulation – Low VOC emissions for environmentally friendly processing

• Excellent Chemical Resistance – Resists most acids, bases, and solvents

• Good Abrasion Resistance – Durable for demanding heavy-duty applications

• Part of Multi-Coat System – Designed for use with recommended primers

• Thermal Stability – Maintains performance at elevated temperatures

Typical Applications for 851G-255 Black

Explore our full range of Teflon industrial coatings for more product options.

Material Advantages of 851G-255 Black

What makes 851G-255 Black the preferred choice for heavy-duty PTFE non-stick topcoat applications? Below are its core practical advantages:

Antistatic Properties for Aerospace Applications
851G-255 Black features antistatic properties, making it the preferred choice for aerospace components where static charge dissipation is critical. This unique characteristic sets it apart from other PTFE topcoats in the 851G series.

High Film Build for Maximum Durability
851G-255 is specifically formulated as a high film build topcoat, allowing application of thicker coatings for enhanced durability and protection. With a recommended DFT of 0.8 – 3.0 mils per coat and total film build up to 8.0 mils, this grade provides superior wear resistance and extended service life in demanding applications.

Proven PTFE Performance
As part of the Teflon PTFE coatings family, 851G-255 Black offers the lowest coefficient of friction of any solid material and excellent non-stick release that has been trusted for decades in industrial, automotive, and aerospace applications. PTFE coatings have the highest operating temperature of any fluoropolymer (260°C / 500°F) .

High Temperature Stability
With continuous service temperature up to 260°C (500°F) , this coating maintains its non-stick properties and mechanical integrity in high-temperature environments where conventional coatings would fail.

Black Color for Process Control
The black color provides easy visual identification of coated parts and aids in process quality control in industrial environments.

Waterborne, Low VOC
The waterborne formulation provides a more environmentally friendly alternative to solvent-based systems, with lower VOC emissions and easier handling.

Excellent Chemical Resistance
Teflon industrial coatings are resistant to virtually all chemicals, with only molten alkali metals and highly reactive fluorinating agents having any effect.

Technical Data

Important Notes on Typical Data:

1. Values listed are typical and sourced from Chemours official data sheets. They do not constitute binding product specification.

2. Batch‑to‑batch deviations may exist. For critical applications, validate performance with batch‑specific COA certificate.

3. Final performance depends on substrate preparation, application method, and curing conditions.

4. Chemours original TDS shall serve as definitive technical reference. Request the latest official TDS from our sales team.

Processing Guidelines

Recommended Primers:

• Use 850G-204, 850G-314, or 850G-321 as primer (mix with 850-7799)

• 855G-021, 857G-030, or 857G-040 primers are also compatible

Critical Processing Warnings:

• Surface Preparation: Proper surface preparation is critical for adhesion. Ensure surfaces are clean, dry, and properly roughened.

• Mixing: Use gentle rolling or tumbling only—do not use propeller-type mixers as coating is shear-sensitive.

• Primer Selection: Select appropriate primer based on your application requirements and substrate.

• Curing: Do not exceed 750°F. Cure time depends on part mass and oven characteristics.

• Storage: Store in original, sealed containers in a cool, dry place away from direct sunlight. Prevent freezing.

• Shelf Life: 18 months in unopened, clean, dry storage.

Related Products

• Explore Teflon PTFE Coatings – Browse all Teflon industrial coating options

• 851G-214 Green – PTFE Topcoat – Standard film build, FDA compliant

• 851G-221 Grey – PTFE Topcoat – High film build, grey color

• 851G-224 Green – PTFE Topcoat – High film build, green color

• About Our Company – Learn more about our supply capabilities and quality assurance

Technical Documents

Request any document above by:

• Email: ruiqingchem@gmail.com

• Online form: Our contact page

We reply within one working business day. Please clearly state product (851G-255 Black) and document type you require.

FAQ

Q1: What is 851G-255 Black and what is it used for?
A: 851G-255 Black is a high film build PTFE (polytetrafluoroethylene) waterborne topcoat from the Teflon industrial coatings portfolio. It is designed for use in two-coat or three-coat systems to provide outstanding non-stick release, low friction, and excellent thermal stability at temperatures up to 260°C (500°F). It features antistatic properties, making it the preferred choice for aerospace components. It is also widely used in automotive, heat exchangers, automatic welding equipment, mold release, filters, and cryogenic applications.

Q2: What is the difference between 851G-255 Black and 851G-214 Green?
A: Both are PTFE waterborne topcoats with the same service temperature (260°C / 500°F). The key differences are: 851G-255 Black is a high film build grade (DFT up to 3.0 mils per coat, total up to 8.0 mils), not FDA compliant, with antistatic properties for aerospace applications. 851G-214 Green is a standard film build grade (DFT 0.5 – 1.5 mils per coat, total up to 3.0 mils) and is FDA compliant for food contact. Choose 851G-255 for heavy-duty aerospace and industrial applications requiring antistatic properties and thicker coatings; choose 851G-214 for food contact applications.

Q3: What is the difference between 851G-255 Black and 851G-224 Green?
A: Both are high film build grades with the same DFT specifications (0.8 – 3.0 mils per coat, total up to 8.0 mils). The key differences are: 851G-255 is black with antistatic properties, making it preferred for aerospace components. 851G-224 is green without antistatic properties. Choose 851G-255 when antistatic properties are required for static-sensitive applications.

Q4: What primers are compatible with 851G-255 Black?
A: Compatible primers include 850G-204, 850G-314, 850G-321 (mixed with 850-7799), as well as 855G-021, 857G-030, and 857G-040.

Q5: Is 851G-255 Black FDA compliant?
A: No. 851G-255 Black is not FDA compliant for food contact applications. For FDA compliant PTFE topcoats, consider 851G-214 (green) or 852G-201 (clear).

Q6: What is the maximum film build of 851G-255 Black?
A: The maximum total film build is 8.0 mils (203 microns) . Recommended DFT per coat is 0.8 – 3.0 mils (20 – 76 µm) .

Q7: What is the maximum service temperature?
A: The continuous service temperature is 260°C (500°F) . Cure temperature is 399°C (750°F) .

Q8: What is the recommended application method?
A: 851G-255 Black is applied via conventional or HVLP spray as part of a multi-coat system.

Q9: What is the shelf life of 851G-255 Black?
A: The shelf life is 18 months when stored in original, sealed containers in a cool, dry place (18-24°C). Prevent freezing.

Q10: What are the antistatic properties of 851G-255 Black?
A: 851G-255 Black features antistatic properties, making it particularly suitable for aerospace components and other static-sensitive applications where static charge dissipation is critical.

Q11: Can I purchase this product and what is lead‑time?
A: Yes. Submit your inquiry via our quick inquiry form or email ruiqingchem@gmail.com, specify quantity, application and delivery address. Regular orders ship within 7‑10 working days after payment confirmation. Large‑volume or urgent orders can be negotiated separately.

Q12: What are limitations?
A: PTFE coatings require proper surface preparation and primer application for optimal adhesion. This grade is not FDA compliant for food contact. Always verify compatibility with specific operating conditions before use.

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• Required quantity (kg)

• Destination port or delivery address

• Target application (aerospace, automotive, heat exchangers, mold release, etc.)

• Antistatic requirements (if applicable for aerospace/static-sensitive applications)

• Primer selection (850G-204, 850G-314, 850G-321, or others)

• Coating system requirement (2-coat or 3-coat system)

• Document requirement (TDS, SDS, COA, etc.)

Sample Policy:

• Samples are for laboratory validation tests only, not for production use.

• Buyer bears international sample‑shipping freight.

• If bulk‑product performance deviates from sample reference, Chemours official TDS serves as authoritative benchmark.

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Disclaimer

DISCLAIMER: All technical data is referenced from original Chemours typical values for 851G-255 Black. Our company acts as authorized distributor/trader rather than original manufacturer. Final performance depends on substrate preparation, application method, and curing conditions. Buyers shall independently validate product suitability for individual applications. Our firm bears no liability for coating failure caused by improper application or improper usage. Always reference latest Chemours official TDS of 851G-255 Black as definitive specification.