857G-40291 Black – PTFE Midcoat for Food Contact Systems

描述

857G-40291 Black is a waterborne 857G-40291 Black PTFE Midcoat 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. For more product options and company information, please visit our website at https://szrqchem.com/.

This 857G-40291 Black PTFE Midcoat is specifically engineered as the intermediate layer in three-coat food contact systems. It is designed to be applied over primers and under topcoats, forming a complete FDA-compliant nonstick coating system. The aqueous-based dispersion is part of the Chemours Teflon Industrial Coatings Specialty System, a series of high-performance coating systems that are special blends of fluoropolymers such as PTFE.

The 857G-40291 Black PTFE Midcoat provides enhanced film build and durability compared to two-coat systems, offering superior abrasion resistance and extended service life. Its black pigmented finish provides a consistent industrial appearance while contributing to the overall thickness and performance of the coating system. The waterborne formulation offers low VOC emissions, making it an environmentally responsible choice for modern industrial facilities.

The 857G-40291 is part of a three-coat system together with 857G-40191 primer and 857G-40301 topcoat, delivering exceptional nonstick properties, thermal stability to 500°F, and extended service life for demanding food contact applications.

With regular stock availability, we support both trial orders and large-volume bulk shipments for food processing equipment, industrial bakeware, and other demanding applications requiring FDA-compliant nonstick coatings.

Key Features of 857G-40291 Black PTFE Midcoat

• FDA Food Contact Compliant – Approved for food contact applications, suitable for food processing equipment and bakeware.

• Black Color – Provides consistent industrial appearance.

• High-Wear-Resistant Formulation – Enhanced durability for demanding applications.

• Enhanced Film Build – Adds thickness and durability to the overall three-coat system.

• Superior Abrasion Resistance – Provides superior abrasion resistance and extends service life.

• Waterborne Formulation – Low VOC emissions, environmentally friendly processing, and safer handling for operators.

• Three-Coat System Compatibility – Designed for use with 857G-40191 primer and 857G-40301 topcoat in three-coat food contact configurations.

• Specialty System – Part of the Chemours Teflon Industrial Coatings Specialty System, a special blend of fluoropolymers optimized for performance.

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

• Excellent Non-Stick Properties – PTFE-based formulation provides outstanding release properties.

• Excellent Chemical Resistance – Resists most acids, bases, and solvents encountered in food processing environments.

• Broad Substrate Compatibility – Can be applied to carbon steel, aluminum, stainless steel, alloy steel, brass, magnesium, as well as non-metallic materials including glass, fiberglass, and certain rubbers and plastics.

Typical Applications for 857G-40291 Black

Material Advantages

The 857G-40291 Black PTFE Midcoat is a waterborne PTFE midcoat that delivers:

• Enhanced System Durability – As an intermediate layer, it adds thickness and robustness to the overall three-coat system.

• High-Wear Resistance – Specially formulated for demanding applications requiring extended service life.

• Food Safety – FDA compliant for food contact, enabling use in food processing and bakeware applications.

• Specialty System Performance – Part of the Chemours Teflon Industrial Coatings Specialty System, a special blend of fluoropolymers optimized for performance.

• Thermal Stability – Maintains performance at continuous service temperatures up to 260°C (500°F), the highest of any fluoroplastic.

• Environmental Compliance – Waterborne carrier reduces VOC emissions compared to solvent-based alternatives.

• Broad Substrate Compatibility – Applicable to a wide range of metals and non-metals, offering design flexibility.

• Aesthetic Consistency – Black pigmented finish provides uniform appearance.

Chemours, as the inventor of Teflon, brings over 80 years of fluoro-polymer expertise, ensuring batch-to-batch consistency, reliable supply, and full technical support.

Typical Properties

Important Notes on Typical Data:

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

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

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

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

Processing Guidelines

Critical Processing Warnings:

• Surface Preparation: Proper surface preparation is critical for adhesion. Unless explicitly noted, most Teflon industrial coatings require primer application.

• System Integrity: 857G-40291 is the midcoat layer and must be used with compatible primer (857G-40191) and topcoat (857G-40301) systems.

• Primer as Foundation: The primer serves as the critical foundation for the entire coating system.

• Curing: Cure time depends on part mass and oven characteristics. Always verify with test pieces.

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

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

Related Products

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

• 850G-300 Clear – Teflon PTFE Acid Primer – Acid primer for PTFE, PFA, and FEP topcoat systems

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

External Reference

For authoritative information, please refer to the following official resources:

• Chemours Official Website – Corporate headquarters and product portfolio overview

• Teflon Industrial Coatings Product Center – Official technical literature and application guides

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 (857G-40291 Black) and document type you require.

FAQ

Q1: What is 857G-40291 Black and what is it used for?
A: 857G-40291 Black is a waterborne PTFE midcoat from the Teflon industrial coatings portfolio. It serves as the intermediate layer in three-coat food contact systems, providing enhanced film build and durability.

Q2: Is 857G-40291 Black FDA compliant?
A: Yes. 857G-40291 is FDA compliant for food contact applications.

Q3: What is the Specialty System?
A: The Chemours Teflon Industrial Coatings Specialty System is a series of high-performance coating systems that are special blends of fluoropolymers such as PTFE, designed to optimize performance for demanding applications.

Q4: What primer and topcoat are compatible with 857G-40291?
A: 857G-40291 is designed for use with 857G-40191 Black primer and 857G-40301 Clear topcoat in three-coat food contact systems.

Q5: What is the temperature range of 857G-40291 Black?
A: The continuous service temperature is 260°C (500°F) , the highest of any fluoroplastic.

Q6: What substrates can 857G-40291 Black be applied to?
A: It can be applied to carbon steel, aluminum, stainless steel, alloy steel, brass, magnesium, as well as non-metallic materials including glass, fiberglass, and certain rubbers and plastics.

Q7: What is the lead time for orders?
A: Regular orders ship within 7-10 working days after payment confirmation. Large-volume or urgent orders can be negotiated.

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• Required quantity (kg)

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• Target application (food processing, bakeware, office automation, etc.)

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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 the authoritative benchmark.

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Disclaimer

DISCLAIMER: All technical data is referenced from original Chemours typical values for 857G-40291 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 the latest Chemours official TDS of 857G-40291 Black as the definitive specification.