How a Home Appliance Company Achieved BPA-Free Compliance for Air Fryers in 30 Days

Meta Description: Discover how a leading air fryer exporter achieved EU (EU) 2024/3190 BPA-free compliance in just 30 days. Complete guide to coating replacement, pretreatment verification, and mass production.

Introduction

On July 20, 2026, EU Regulation (EU) 2024/3190 came into full effect, prohibiting the use of Bisphenol A (BPA) and its salts in food contact varnishes and coatings. The detection limit is as low as 1 microgram per kilogram (1 ppb).

A home appliance company exporting over 2 million air fryers annually initiated a supply chain switch just 30 days before the compliance deadline. This article documents how the company:

• Completed coating replacement

• Verified pretreatment processes

• Conducted BPA residue testing

• Achieved mass production

They became one of the first air fryer spraying suppliers to pass the EU BPA-free audit.

1. Compliance Background: Why Air Fryers Must Be BPA-Free

1.1 EU BPA Ban Timeline

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Air fryer inner pot coatings directly contact food. Under the new EU regulation, the detection limit is 600 times stricter than before. Companies must ensure all EU-bound air fryer coatings are BPA-free by July 20.

1.2 Sources of BPA in Spray Coatings

BPA mainly comes from three coating systems:

• Epoxy resin primers – BADGE-based epoxy is the most common

• Powder coatings – Epoxy-polyester hybrid powders

• Non-stick coatings – PTFE/PFA primers with BPA crosslinkers

The company's original coating system used BPA-type epoxy primer with BPA residue of 15-30 mg/kg, far exceeding the 1 ug/kg EU limit.

2. Achieving BPA-Free in 30 Days: A Five-Step Approach

Step 1: Coating Investigation and Selection (Days 1-7)

Key actions:

• Requested BPA Declaration of Compliance (DoC) from all suppliers

• Identified BPA-free alternative coatings

• Excluded BPF and BPAF (also banned under EU 2024/3190)

Selected solution: Waterborne acrylic primer + BPA-free fluorocarbon topcoat

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Step 2: Pretreatment Verification (Days 8-14)

The company switched from zinc phosphating to zirconium conversion (T ceramic) :

• Phosphate-free, chrome-free, BPA-free

• Film weight: 0.05-0.30 g/m²

• Adhesion: Grade 0 (GB/T 9286-2021)

• Salt spray: 1000 hours passed (GB/T 1771-2007)

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Step 3: Two-Primer-Two-Bake Process Parameter Solidification (Days 15-20)

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Key control point: Waterborne primer flash-off time ≥ 5 minutes to prevent blistering during topcoat baking.

Step 4: BPA Residue Testing Confirmation (Days 21-25)

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Third-party CNAS/CMA test report obtained – directly accepted by EU customers.

Step 5: Mass Production and Customer Audit (Days 26-30)

• 500 units trial production – 100% BPA residue inspection passed

• Declaration of Compliance (DoC) issued

• Submitted to EU customer with DoC + test report + coating supplier BPA-free declaration

• First order: 3,000 units delivered before July 20 deadline

3. Results Data

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4. Frequently Asked Questions

Q1: Which air fryer parts are affected by the EU BPA ban?

Inner pot coating, grill coating, and steam tray coating – all direct food contact surfaces. Non-food contact parts (outer shell, control panel) are not directly subject to this ban but must comply with REACH/RoHS.

Q2: Can BPF or BPAF replace BPA?

No. (EU) 2024/3190 bans all bisphenol substances including BPA, BPS, BPF, and BPAF. The correct alternatives are non-bisphenol film formers such as acrylic, polyurethane, and fluorocarbon systems.

Q3: What are the Chinese GB standards for BPA?

GB 4806.10-2025 reduces the BPA migration limit from 0.6 mg/kg to 0.05 mg/kg (effective September 2, 2026). However, the EU standard is still stricter (direct ban at 1 ug/kg detection limit).

Q4: How to test BPA-free coatings?

Use EN 13130-13 or GB 31604.5 with food simulants (3% acetic acid, 10% ethanol, vegetable oil). Analyze with GC-MS or LC-MS/MS. Detection limit: 1 ug/kg. Always use a CNAS/CMA-accredited third-party lab.

Q5: What are the advantages of zirconium conversion over phosphating?

• No phosphate discharge

• No heavy metal sludge

• Room temperature processing

• Lower energy consumption

• Wastewater treatment cost reduced by 60%+

Q6: Is the 30-day switch applicable to all products?

It applies to factories with existing zirconium conversion capability. If still using phosphating, the switch cycle extends to 45-60 days. Companies should establish a coating approval list and prioritize BPA inspection for food contact applications.

5. About DINGPRECISION

Foshan Dingyi Industrial Technology Co., Ltd. (DINGPRECISION) specializes in precision sheet metal fabrication from drawings to products, with a full non-subcontracting chain.

Core capabilities:

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Key testing methods (film thickness, adhesion, salt spray) are fully equivalent to ISO standards (IDT). Test reports are directly internationally recognized.

For the full "Metal Spray Coating Dual Compliance White Paper," contact the DINGPRECISION technical team.

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Contact DINGPRECISION for your metal spray painting needs. Our technical team is ready to support your product development, compliance verification, and quality assurance requirements.

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