Food-Contact Compliant UPR
Key Features
- Compliant with EU 10/2011 and FDA food contact regulations
- Passes aqueous, acidic, and fatty food simulant migration tests
- No heavy metals, restricted substances, or non-approved additives
- Mandatory post-cure minimizes residual styrene migration
- Certification documentation available for regulatory submissions
Food-Contact Compliant UPR is a specially purified and certified isophthalic unsaturated polyester resin formulated from monomers and additives that comply with food contact material regulations, including EU Regulation 10/2011 on plastic materials in contact with foodstuffs, and US FDA 21 CFR regulations applicable to food-processing equipment.
The resin is manufactured using high-purity raw materials with controlled residual monomer content, and uses only food-contact approved inhibitors and additives. Fully cured laminates pass migration testing to aqueous, acidic (3% acetic acid), and fatty food simulants. No heavy metal stabilizers, non-approved colorants, or restricted substances are used.
Viscosity at 25°C is 300-550 mPa·s, suitable for hand lay-up and filament winding. Cure systems must use approved peroxides (BPO is preferred over MEKP for food contact applications). Post-cure at 80°C for 2 hours is mandatory to reduce residual styrene migration below regulatory limits. Applications include food processing tanks, dairy equipment, wine vat linings, beverage pipework, and food grade FRP conveyor components.
Specifications
| Parameter | Value |
|---|---|
| Acid Value | 12-20 mg KOH/g |
| Appearance | Clear to pale liquid |
| Viscosity (25°C) | 300-550 mPa·s |
| Post-Cure Requirement | 80°C / 2h minimum |
| Regulatory Compliance | EU 10/2011, US FDA 21 CFR |
| Cure System (food contact) | BPO preferred |
| Residual Styrene (after post-cure) | <0.1% per test method |
Applications
FAQ
Without adequate post-cure, residual styrene monomer remains in the cured matrix and can migrate into food contact simulants at levels exceeding EU/FDA migration limits. Post-cure at 80°C for 2 hours increases conversion to >97%, reducing residual styrene to <0.1% and migration to within compliant limits. Do not use food contact FRP equipment without verified post-cure documentation.
Direct Contact
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