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Product Overview
The Milk Yellow PVF (Food Grade) Coating Steel Drums produced by Wuxi Sifang Youxin Co., Ltd. represent the highest standard of safety, cleanliness, and durability for food-grade and high-purity industrial packaging. These drums are internally coated with polyvinyl fluoride (PVF) — a premium fluoropolymer lining recognized for its outstanding chemical resistance, purity, and non-stick properties.
The signature milk yellow interior coating ensures visual identification of food-grade quality, while offering superior protection against acids, alcohols, fats, and flavor compounds. Designed to meet strict international standards such as FDA, EU food contact regulations, and UN packaging codes, these steel drums are widely used for edible oils, flavorings, syrups, beverages, pharmaceutical ingredients, and other sensitive materials requiring contamination-free storage and transport.
Product Specifications
Type: Open-head or closed-head food-grade steel drums with PVF internal coating
Capacity Range: 50L – 230L (commonly 200L, 205L, 210L, 230L)
Material: High-quality cold-rolled or hot-rolled carbon steel sheets
Thickness: 0.6 – 1.2 mm (customized per product requirements)
Interior Coating
Type: Polyvinyl fluoride (PVF) fluoropolymer
Color: Milk yellow (food-grade identification color)
Thickness: 20–30 μm uniform coating
Properties: Excellent chemical inertness, non-toxic, anti-adhesive, and heat-resistant
Exterior Coating: Water-based or amino enamel finish (custom colors and branding available)
Sealing Type: Seamed or welded top and bottom ends, with optional 2” and ¾” threaded openings
Standards Compliance: FDA 21 CFR 175.300, EU Regulation (EC) No. 1935/2004, ISO, UN packaging
Key Product Advantages
1.Food-Grade Safety and Purity
The PVF coating is non-toxic, odorless, and free of BPA, heavy metals, and solvents, ensuring the purity of food or pharmaceutical contents. It prevents taste migration or contamination, making it ideal for flavor-sensitive and edible products.
2.Exceptional Chemical Resistance
PVF (Polyvinyl Fluoride) is known for its strong resistance to oils, acids, alcohols, and cleaning agents. The coating maintains structural integrity even under prolonged contact with complex or reactive materials.
3.Smooth and Non-Stick Surface
The milk yellow PVF coating provides a smooth, low-friction surface that minimizes residue retention and simplifies cleaning or reuse. This feature is particularly valuable for food, beverage, and cosmetic applications.
4.High Temperature and UV Resistance
The PVF lining withstands high curing temperatures and resists UV aging, ensuring long-term coating stability and consistent performance across various transport conditions.
5.Visual Identification and Aesthetic Appeal
The distinct milk yellow hue serves as a visual quality assurance marker for food-grade use, enabling quick differentiation from industrial chemical coatings.
6.Eco-Friendly and Recyclable
Manufactured with water-based paints and phosphorus-free pretreatment, these drums meet modern environmental protection requirements while remaining fully recyclable at end-of-life.
Product Composition and Structure
1.Each Milk Yellow PVF Coating Steel Drum consists of
Drum Body: Cylindrical steel shell formed from precision-rolled steel sheets.
Top & Bottom Ends: Seam-welded for leak-proof performance.
Internal Coating:
Material: PVF fluoropolymer lining.
Function: Prevents corrosion, contamination, and flavor migration.
External Coating: Water-based or amino baking enamel providing weather and corrosion protection.
Closures & Fittings:
Open-head type: Detachable lid with clamp ring and sealing gasket.
Closed-head type: Fixed top with dual threaded openings (2” & ¾”).
2.Manufacturing Process Steps
Surface Preparation: Phosphorus-free cleaning and activation.
Coating Application: Uniform PVF spray or film-lamination process under controlled temperature.
Thermal Curing: High-temperature baking for complete polymerization and adhesion.
Testing & Quality Inspection: Each drum undergoes thickness, adhesion, leakage, and food safety testing.
Applications
The Milk Yellow PVF Coating Steel Drums are engineered for food-grade and high-purity industrial applications, including:
Food & Beverage Industry: Edible oils, syrups, fruit concentrates, condiments, dairy ingredients, and flavorings.
Pharmaceuticals & Nutraceuticals: Active ingredients, intermediates, and sensitive raw materials requiring sterile conditions.
Cosmetics & Personal Care: Oils, emulsions, and fragrances sensitive to metal contact.
Fine Chemicals & Laboratory Use: Materials needing inert, contamination-free containment.
Export Packaging: Suitable for international shipping under food-grade safety regulations.
The PVF coating’s high chemical inertness ensures that the product’s taste, purity, and stability remain completely unaffected during storage or transportation.
Quality Assurance and Testing
Every PVF-coated steel drum from Sifang undergoes rigorous testing to guarantee compliance with food safety and quality standards:
Coating Adhesion & Thickness Test: Confirms strong bonding and uniform coverage.
Chemical Resistance Test: Validates performance against acids, alcohols, and oils.
Migration and Purity Test: Ensures compliance with FDA and EU food contact safety limits.
Salt Spray and Corrosion Test: Simulates environmental exposure for coating durability.
Leak & Pressure Test: Verifies 100% airtightness under hydraulic or pneumatic pressure.
Visual Inspection: Each drum is examined for coating smoothness, color uniformity, and finish quality.
All test data are recorded and traceable, providing complete quality transparency for international clients.
Frequently Asked Questions (FAQ)
Q1: Why is the PVF coating milk yellow in color?
The milk yellow tone indicates food-grade quality and ensures easy visual distinction from industrial coatings.
Q2: What makes PVF better than epoxy or phenolic coatings for food use?
PVF is a fluoropolymer with higher chemical inertness and purity, ensuring no odor, no contamination, and superior long-term stability for food applications.
Q3: Can the drums be reused after cleaning?
Yes. The non-stick PVF coating allows for easy cleaning and multiple reuse cycles without performance degradation.
Q4: Are these drums suitable for export to Europe or the U.S.?
Absolutely. They comply with FDA and EU food contact regulations and are widely accepted by international food and pharmaceutical companies.
Q5: Can customization (color, logo, labeling) be provided?
Yes. Sifang offers custom exterior colors, company logos, and printed markings upon request.
Conclusion
The Milk Yellow PVF (Food Grade) Coating Steel Drums by Wuxi Sifang Youxin Co., Ltd. are the ultimate solution for clean, safe, and sustainable food-grade packaging. Combining the purity of PVF fluoropolymer technology with Sifang’s precision manufacturing, these drums ensure maximum protection, zero contamination, and extended durability across global supply chains.
Ideal for food, pharmaceuticals, and high-purity industries, these PVF-coated drums embody Sifang’s commitment to quality, safety, and environmental responsibility. With their signature milk yellow interior and exceptional chemical stability, they offer a perfect blend of performance, compliance, and reliability — ensuring that every product you deliver maintains its original flavor, integrity, and safety.
