Food Grade Silicone Seals

Food grade silicone seals: Industrial O Rings

Food grade silicone seals are an indispensable solution for the food industry, ensuring safety, hygiene and optimal performance. Larosi Srl, a leading wholesaler of technical components, offers over one million food grade O-Rings in stock, ready for shipment in just 24 hours. This page explores the features, materials, applications and benefits of O-Rings in food grade silicone, FKM (fluoroelastomer) and EPDM (ethylene propylene diene monomer), with a focus on regulatory compliance and certified quality. Find out how Larosi can support your company with customised sealing solutions.

Introduction to Food Grade Silicone Gaskets

Food-grade silicone seals are essential components for ensuring safety in food processes. Due to their toroidal shape, food-grade O-rings ensure a tight seal in static and dynamic applications. Larosi Srl offers a wide range of O-Rings in materials certified for food contact, such as silicone, FKM and EPDM. These materials meet international standards, preventing contamination and ensuring hygiene. With over one million variants in stock, Larosi is the ideal partner for the food industry.

Food grade O-rings are designed to withstand extreme conditions, such as high and low temperatures or aggressive cleaning agents. Their versatility makes them suitable for sectors such as dairy production, bottling and baking. Larosi ensures quick delivery and customised solutions, meeting the needs of each customer. Food grade silicone gaskets are characterised by their flexibility, stability and odourlessness, making them ideal for direct food contact.

Materiali per O-Ring Alimentari

Larosi’s food-grade silicone seals and O-rings are made from three main materials: silicone, FKM and EPDM. Each compound is selected for its unique properties, ensuring compliance with regulations such as FDA, EC 1935/2004 and 3-A. Below are the characteristics of each material.

Food grade silicone

Silicone is the material of choice for food-grade silicone gaskets. Its properties include:

• Heat resistance: works from -60°C to +250°C, perfect for refrigeration and sterilisation.
• Odourless and tasteless: does not alter the organoleptic properties of food.
• Flexibility: ideal for dynamic applications due to low deformation.
• Compliance: FDA 21 CFR 177.2600, CE 1935/2004, NSF 61 and 3-A certified.
• Customisation: available in colours (clear, white, red, black) and custom sizes.

Food-grade silicone seals are manufactured in clean rooms to ensure maximum hygiene. Larosi offers O-rings with an inner diameter of less than 50 mm and a cross-sectional area of 1 to 40 mm. This material is ideal for bottling lines and beverage production.

FKM (Fluoroelastomer)

FKM, also known as Viton®, is a premium material for food O-rings. Its characteristics include:

• High temperature resistance: up to +200°C, suitable for pasteurisation and sterilisation.
• Chemical resistance: withstands aggressive detergents and acids in CIP and SIP processes.
• Detectability: available in blue colour to reduce the risk of physical contamination.
• Compliance: FDA certified, CE 1935/2004 and conforms to DM 21/03/1973.
• Traceability: micro-marking to identify each O-Ring, improving management.

FKM food O-rings are perfect for the dairy and beverage industry. Larosi guarantees certified and customisable solutions for every requirement.

EPDM Food Grade

EPDM is a versatile elastomer for food-grade silicone seals and O-rings. Its properties include:

• Steam and hot water resistance: -50°C to +150°C, ideal for steam cleaning.
• Chemical resistance: compatible with aqueous fluids and detergents, not with oils.
• Low deformation: cross-linking with peroxide for long life.
• Compliance: FDA, CE 1935/2004, NSF 61, REACH and RoHS certified.
• Safety: free of ingredients of animal origin (ADI-free).

EPDM is ideal for drinking water treatment and dairy production. Larosi offers EPDM O-Rings in different sizes and colours.

Standards and Certifications for Food Seals

Food grade silicone seals and O-rings must comply with strict regulations to ensure safety and hygiene. Larosi ensures compliance with:

• FDA 21 CFR 177.2600: specifies safe materials for contact with food.
• EC 1935/2004: regulates food contact materials (MOCA), preventing harmful transfers.
• EC 2023/2006: defines good manufacturing practice (GMP) for hygiene.
• NSF 61: certifies safety for drinking water.
• 3-A Sanitary Standards: standards for the dairy industry.
• DM 21/03/1973: Italian standard on migration testing.

Larosi uses processes certified by bodies such as ICIM SPA and DNV-GL. Each production stage is monitored to ensure traceability and quality. Food-grade silicone gaskets are produced in clean rooms, eliminating contaminants such as dust or microbes. This ensures safe products for food contact.

Applications of Food Grade Silicone Gaskets

Larosi’s food-grade silicone seals and O-rings are used in various industrial applications. Here are the main sectors:

• Dairy production: O-Rings in EPDM and FKM for pasteurisation and cleaning.
• Beverage industry: food-grade silicone seals for filling and bottling machines.
• Bakery industry: silicone O-rings for high temperatures and dry food.
• Packaging: MOCA-certified lip seals and one-piece pistons.
• Drinking water treatment: EPDM O-Rings conforming to NSF 61.
• Packaging: bellows made of low-friction materials for greater efficiency.

Larosi offers customised solutions such as large seamless O-rings and metal-detectable seals. The latter, which can be detected by metal detector or X-ray, reduce the risk of contamination. With over one million products in stock, Larosi guarantees fast delivery.

Advantages of Larosi Seals

Larosi stands out in the food silicone gasket market for several reasons:

• Large stock: more than one million food grade O-rings available for shipment within 24 hours.
• Certified quality: compliance with FDA, EC 1935/2004, NSF 61 and 3-A.
• Customisation: customised sizes, colours and compounds for each application.
• Extreme resistance: materials suitable for aggressive temperatures and detergents.
• Traceability: micro-marking on FKM O-Rings to identify each part.
• Technical support: experts available to guide you in the choice of seals.
• Hygienic production: clean rooms to guarantee product purity.

These advantages make Larosi the ideal partner for the food industry, offering reliable and safe solutions.

How to Choose the Right Food Grade Silicone Gaskets

Choosing food grade silicone seals or food grade O-rings requires attention to several parameters:

• Hardness (Shore): food grade silicone has a hardness of 70 Shore A, while EPDM varies.
• Dimensions: Larosi offers O-rings with internal diameters up to 50 mm and cross-sections from 1 to 40 mm.
• Static or dynamic seals: static seals do not move, dynamic ones resist wear.
• Thermal resistance: silicone for low temperatures, FKM for high temperatures, EPDM for steam.

Larosi provides technical guides and dimension tables to simplify selection. O-rings are available in standard AS568, BS, metric or JIS.

Food Industry Challenges and Larosi’s Solutions

The food industry presents unique challenges for food silicone gaskets:

• Temperature extremes: -76°C (silicone) to +500°C (FFKM).
• Aggressive cleaning agents: FKM and encapsulated PTFE resist CIP/SIP processes.
• Mechanical wear: Peroxide-crosslinked EPDM offers low deformation.
• Physical contamination: metal-detectable and blue O-rings reduce risks.

Larosi offers innovative solutions, such as self-adaptive seals that compensate for eccentricity. Low-friction materials, such as SINTEK V1AL, extend service life. Bellows prevent fluid stagnation, reducing bacterial loads.

Certified Food Grade Silicone Gaskets for Industry

In the world of the food industry, the choice of food contact materials is a crucial aspect. Food grade silicone O-rings are the ideal solution to ensure safety, hygiene and durability. These components are designed to comply with stringent European and international regulations.

Larosi Srl is a reference point in Italy for the wholesale supply of more than one million technical articles and industrial seals, ready in stock for quick shipment throughout Europe. For over 50 years we have been supporting companies in the food & beverage sector with customised and certified O-rings.

Standards and Certifications for Food Seals

Seals used in the food industry must meet specific safety requirements. Food-grade silicone O-rings must be:

• Free of odour and taste
• Non-toxic and non-allergenic
• Compliant with regulations such as FDA 21 CFR 177.2600, BGA, KTW, 3A Sanitary and CE regulations

Each of our articles is certified to ASTM D2000 standards and manufactured to tolerances according to ISO3302 and ISO2768. The compounds are selected for organoleptic stability and chemical and thermal resistance.

Applications of Silicone Gaskets for Food Use

These O-rings are used in:

• Food processing plants
• Bottling and packaging machinery
• Production of beer, tea, coffee and beverages
• Pharmaceutical and cosmetics

Made-to-measure production: Colours, Sizes and Hardnesses

Larosi’s food-grade silicone O-rings can be manufactured:

• In various colours (transparent, red, white or colour-coded on request)
• With hardnesses from 30 to 95 Shore A
• With internal diameters from 0.5 mm to 1400 mm
• With thicknesses from 0.5 mm to 20 mm

Production is by mould vulcanisation, with materials such as silicone, NBR, EPDM, FKM (Viton) and HNBR. We also guarantee high quality for customised or large-volume orders.

Advantages of Silicone Rubber O-Rings

O-rings made of compact silicone rubber offer numerous technical advantages:

• Heat resistance up to +250°C
• Flexibility down to -60°C
• Excellent ageing and UV resistance
• High dimensional stability and elongation

They do not absorb odours or release residues. They are the ideal choice for critical environments and for ensuring the purity of foodstuffs during every stage of processing.

Depending on the fluid handled and the operating conditions, our technical department can recommend the most suitable compound. A wrong choice of material can compromise food safety and component life.

Red silicone is ideal for high temperature applications. Transparent silicone, on the other hand, is recommended where visual control or neutral aesthetics are required. Both solutions guarantee food compatibility and total safety.

Larosi’s food-grade silicone seals and O-rings offer safe and reliable solutions for the food industry. Materials such as silicone, FKM and EPDM guarantee regulatory compliance and resistance to extreme conditions. With a large stock and 24-hour delivery, Larosi is the ideal partner to improve the efficiency and safety of your processes. Explore our catalogue on larosi.com and request a quote today.

Why Choose Larosi for Food Grade Silicone Gaskets

Larosi Srl is the benchmark for food-grade silicone seals and O-rings. With over a million products in stock, Larosi guarantees:

• Fast shipping: orders processed within 24 hours.
• Superior quality: certified materials for food safety.
• Customised solutions: customised O-rings for every need.
• Expert support: technical advice to optimise applications.

Contact Larosi at +39 049 772533 or visit larosi.it to discover the complete range of food seals.

Larosi’s food-grade silicone seals and O-rings offer safe and reliable solutions for the food industry. Materials such as silicone, FKM and EPDM ensure regulatory compliance and resistance to extreme conditions. With a large stock and 24-hour delivery, Larosi is the ideal partner to improve the efficiency and safety of your processes. Explore our catalogue on larosi.com and request a quote today.