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MFGsourcing specializes in manufacturing high-quality custom silicone lids for bowls, designed to meet the exacting standards of global brand buyers. Our end-to-end solutions support every stage of product development, from Engineering Validation Test (EVT) and Design Validation Test (DVT) to Production Validation Test (PVT). We ensure superior performance, durability, and compliance with international safety standards, making our silicone lids ideal for food storage, meal prep, and retail applications.

Technical Manufacturing Process

1. Design and Prototyping:

   • Collaborative 3D modeling and DFM (Design for Manufacturability) analysis to optimize structure, ensuring uniform wall thickness (≥1 mm) and minimal draft angles (≥1°) for seamless demolding.

2. Material Selection:

   • FDA-grade and LFGB-certified silicone rubber with options for industrial-grade materials to reduce costs where applicable. Hardness tailored to shore hardness (20A-80A).

3. Molding and Vulcanization:

   • Precision steel molds (tolerance ±0.05 mm) for high-volume production (50,000+ cycles). Liquid Silicone Rubber (LSR) injection or compression molding at 160–180°C ensures consistent curing 710.

4. In-Process Quality Checks:

   • Real-time monitoring of temperature, pressure, and vulcanizing time (30–300 seconds) to prevent defects like bubbles or flow mark.

Post-Processing

• Deburring: Cryogenic freezing (-100°C) to remove micro-level flashes .

• Surface Treatment: Plasma coating for enhanced adhesion of prints or logos.

• Secondary Vulcanization: Heating at 200°C for 2–4 hours to eliminate volatiles and improve mechanical properties.

• 100% Inspection: Automated vision systems and tensile testing to verify dimensional accuracy (±0.1 mm) and seal integrity.

Value Analysis/Value Engineering (VAVE) for Cost Reduction

• Material Optimization: Using cost-effective fillers (e.g., calcium carbonate) for non-critical parts, reducing material costs by 15–30%.

• Modular Mold Design: Splitting complex designs into multi-component molds to cut tooling costs by 25% 2.

• Process Efficiency: Adopting compression molding for thicker lids (>2 mm), lowering energy consumption by 40%.

• Supply Chain Localization: Sourcing regional raw materials to reduce logistics costs to <3% of total expenses.

Quality Assurance

• Certifications: Compliant with ISO 9001 (general quality) and ISO 13485 (medical-grade safety) for biomedical and food-contact applications.

• Testing Protocols:

  • Physical tests: Tensile strength (≥8 MPa), tear resistance (≥25 kN/m), and compression set (≤20%).

  • Chemical tests: GC-MS analysis for VOC emissions (<50 μg/g) and heavy metal detection (lead <0.1 ppm).

• Traceability: Full batch-level tracking from raw materials to delivery, ensuring rapid issue resolution.

Why Choose MFGsourcing?

With decades of expertise in silicone manufacturing, we offer end-to-end customization, rigorous quality control, and cost-optimized solutions tailored to global brands. Our seamless integration of VAVE principles ensures competitive pricing without compromising on reliability or compliance.

Contact us today to prototype your silicone bowl lids with precision and efficiency!