420G-70X Series – Solvent-Based FEP/PFA Primers for Industrial Coatings

描述

The 420G-70X Series is a family of solvent-based primers 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/.

The 420G-70X Series primers are specifically engineered as the foundational layer for FEP and PFA topcoat systems. These solvent-based primers are designed to work on any metallic substrate that can withstand the recommended curing temperature. Available in Black (420G-703) and Gray (420G-706) , these primers provide exceptional intercoat adhesion between the substrate and fluoropolymer topcoats, which inherently have weak adhesion to metal surfaces.

Primers effectively prepare surfaces before coating application, creating a protective layer over the substrate that decreases the porosity of the coating so that it is not absorbed by the substrate. The 420G-70X Series primers are FDA compliant for food contact applications per 21CFR, making them suitable for food processing equipment, industrial bakeware, and other food-contact uses. The solvent-based formulation provides excellent adhesion, increased durability, and additional protection to the substrate.

With regular stock availability, we support both trial orders and large-volume bulk shipments for food processing, mold release, industrial bakeware, automotive components, chemical processing equipment, and other demanding industrial applications.

Available Models in the 420G-70X Series

Key Features of 420G-70X Series Primers

• FDA Food Contact Compliant – Approved for food contact applications per 21CFR, suitable for food processing equipment, bakeware, and other food-contact uses.

• Solvent-Based Formulation – Provides excellent adhesion, increased durability, and additional protection to the substrate.

• Superior Intercoat Adhesion – Acts as a robust “bridge” between the substrate and FEP/PFA topcoats, fundamentally preventing coating delamination and ensuring long-term durability.

• Broad Substrate Compatibility – Designed to work on any metallic substrate that can withstand the recommended curing temperature.

• FEP and PFA Topcoat Compatibility – Suitable for use with FEP and PFA topcoats in both powder and liquid form.

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

• Enhanced Durability – By improving adhesion, the primer significantly extends the overall service life of the coating system.

• Optimized Surface Preparation – Creates a smooth, well-adhered layer that allows the topcoat to distribute evenly, resulting in better smoothness, nonstick properties, and appearance.

• Multiple Color Options – Available in Black (420G-703) and Gray (420G-706) to suit various application requirements.

Typical Applications for 420G-70X Series

Material Advantages

The 420G-70X Series solvent-based primers deliver:

• Superior Adhesion – Primers effectively prepare surfaces before coating application, creating a protective layer over the substrate that decreases porosity and prevents the coating from being absorbed.

• Food Safety – FDA compliant for food contact per 21CFR, enabling use in food processing and food-contact applications.

• Solvent-Based Performance – The solvent-based carrier provides excellent wetting, leveling, and adhesion properties for demanding industrial applications.

• Chemical Inertness – Fluoropolymer-based formulation provides excellent resistance to chemicals and corrosion.

• Thermal Stability – Maintains performance at continuous service temperatures up to 260°C (500°F), suitable for high-temperature applications.

• Broad Substrate Compatibility – Applicable to any metallic substrate that can withstand the recommended curing temperature.

• Enhanced Durability – Provides proper adhesion, increased durability, and additional protection to the substrate.

• Optimized Surface – A smooth, well-adhered primer layer allows the subsequent FEP/PFA topcoat to distribute more evenly, resulting in better smoothness, nonstick properties, and 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:

• Primer as Foundation: The primer serves as the critical foundation for the entire coating system. Proper application and curing are essential for optimal adhesion and durability.

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

• Topcoat Compatibility: 420G-70X primers are suitable for use with FEP and PFA topcoat systems in both powder and liquid form.

• Solvent Safety: Solvent-based primers require proper ventilation during application. Follow all safety guidelines in the SDS.

• Curing: Cure time and temperature depend 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 (420G-70X Series) and document type you require.

FAQ

Q1: What is the 420G-70X Series and what is it used for?
A: The 420G-70X Series is a family of solvent-based primers from the Teflon industrial coatings portfolio, available in Black (420G-703) and Gray (420G-706). These primers serve as the foundational layer for FEP and PFA topcoat systems, providing exceptional adhesion between the substrate and fluoropolymer topcoats.

Q2: Is the 420G-70X Series FDA compliant?
A: Yes. The 420G-70X Series primers are FDA compliant for food contact applications per 21CFR.

Q3: What is the difference between 420G-703 and 420G-706?
A: The primary difference is the color: 420G-703 is Black and 420G-706 is Gray. Both share similar performance characteristics as solvent-based primers for FEP and PFA systems, with FDA compliance for food contact applications.

Q4: What topcoats are compatible with the 420G-70X Series primers?
A: The 420G-70X primers are suitable for use with FEP and PFA topcoat systems in both powder and liquid form.

Q5: What is the maximum service temperature of the 420G-70X Series?
A: The maximum continuous service temperature is 260°C (500°F) .

Q6: What substrates can the 420G-70X Series primers be applied to?
A: These primers are designed to work on any metallic substrate that can withstand the recommended curing temperature.

Q7: What is the shelf life of the 420G-70X Series primers?
A: The shelf life is 18 months in unopened, proper storage.

Q8: 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.

CTA (Call to Action)

Ready to order 420G-70X Series Primer?

To get a precise quotation and professional technical support, please share:

• Required quantity (kg)

• Destination port or delivery address

• Desired color (Black 420G-703 or Gray 420G-706)

• Target application (food processing, bakeware, mold release, etc.)

• Topcoat requirement (FEP or PFA)

• Document requirement (TDS, SDS, FDA compliance, 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 the authoritative benchmark.

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After-Sales Support

Disclaimer

DISCLAIMER: All technical data is referenced from original Chemours typical values for the 420G-70X Series primers. 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 the 420G-70X Series primers as the definitive specification.