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Polypac FDA O-Ring Kits — Reliable Food‑Grade Sealing Solutions

Polypac FDA O-Ring Kits provide ready-to-use, food‑grade sealing solutions in multiple materials and sizes. Manufactured in our advanced facility, kits are FDA-compliant, factory-tested, and customizable for food, pharma, and beverage applications.

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Product Information

Polypac FDA O-Ring Kits — Food‑Grade, Ready-to-Use Seals

Polypac FDA O-Ring Kits are designed for engineers, maintenance teams, and OEMs who need dependable, food‑grade seals that meet strict sanitary standards. Each kit includes a broad size selection and multiple material options to cover common sealing needs in food, beverage, and pharmaceutical equipment.

Why choose Polypac FDA O-Ring Kits?

FDA-compliant materials: Available in silicone, FKM, NBR, EPDM and high‑performance FFKM for direct and indirect food contact.
Wide size range: Comprehensive selection for quick replacement and reduced downtime.
Factory tested: Manufactured in Polypac’s modern 8,000 m² facility with strict quality control and advanced testing equipment.
Custom options: Tailored compound development and special formulations for high-temperature, chemical or abrasive conditions.

Designed for real working conditions

Founded in 2008, Polypac combines decades of sealing expertise with ongoing research partnerships with universities and institutes. Our FDA O-Ring Kits are produced in a 10,000 m² site and follow rigorous production and testing protocols, ensuring consistent performance under frequent washdowns, steam cleaning, and contact with food-grade chemicals.

Key benefits

Safety and compliance: Meets FDA food contact requirements and industry hygiene expectations.
Durability: Materials like FFKM and FKM provide superior chemical and temperature resistance.
Cost-effective maintenance: Pre-packed kits reduce inventory complexity and speed repairs.
Expert support: Technical guidance for material selection and custom O-ring design.

How to use

Choose the kit by application (food, pharma, beverage), material preference, and common sizes. For specialized environments, request Polypac’s custom sealing solutions — from compound development to finished O-rings.

Order Polypac FDA O-Ring Kits today for reliable, food‑grade sealing that keeps production running and meets regulatory expectations.

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Question you may concern

When should I use a spring-energized seal instead of a standard elastomeric seal?

Consider a spring-energized seal (e.g., GSF, SPN types) for demanding applications involving: Extreme Temperatures (below -30°C or above +200°C) Aggressive Chemicals that elastomers can't handle Very Low Leakage or "Zero Leakage" requirements Poor Lubricity or dry running conditions The internal spring maintains constant sealing force, compensating for wear and system variables.

What does "AS568" mean?

AS568 is the Aerospace Standard that defines the dimensions for over 360 standard O-ring sizes. It is the most widely accepted sizing system in North America and globally. An AS568 number (e.g., AS568-214) specifies a precise inside diameter and cross-section.

How important is surface finish on the metal parts that contact the seal?

Extremely important. A rough surface will abrade and wear out the seal quickly, causing leaks. A finish that is too smooth can prevent a lubricating film from forming. A typical recommended surface finish for dynamic applications is 0.2 to 0.8 μm (8-32 μin) Ra.

What is the difference between a static seal and a dynamic seal?

A Static Seal is used between two surfaces that do not move relative to each other (e.g., pipe flanges, end caps). O-rings and gaskets are common static seals. A Dynamic Seal is used between surfaces that do move (e.g., piston and cylinder, rotating shaft). Rod seals, piston seals, and rotary shaft seals are designed for this purpose.

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PRODUCTS

dbde24e1-4012-47b6-8db4-e89ee4ca5a70

Polypac Industrial Technology Co.,Ltd

+86 189 2463 6168

rose@dmsseals.com

No. 5, Hegui Mid Road, Hegui Industrial Park, Lishui Town, Nanhai District, Foshan City, Guangdong Province, P.R. China.

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