Silicone Sealant CX80 CX-020 NSF H1 500 g – for Plastics and Rubber

CX80 CX-020 NSF H1 500 g is a silicone sealant formulated for sealing and bonding plastic and rubber components where incidental food contact may occur. The neutral-cure silicone adheres to a range of substrates used in machinery, conveyor systems, gaskets and housings, providing a flexible, durable seal that resists moisture and environmental exposure. Packaged in a 500 g cartridge, this product is designed for maintenance, repair and preventive sealing in production areas adjacent to food processing where NSF H1 classification is required.

Advantages

The sealant cures at room temperature to form an elastic silicone rubber that maintains adhesion on many plastics and elastomers without aggressive corrosion to metal parts. Its NSF H1 classification ensures suitability for incidental food contact applications, and the neutral cure chemistry reduces the risk of damaging sensitive plastics or electronic components. The 500 g size offers a balance between coverage and ease of handling for repair tasks and routine maintenance.

Suitable for

• Sealing joints and seams on plastic housings and covers
• Repairing torn or worn rubber gaskets and seals
• Bonding rubber-to-plastic assemblies in equipment near food processing
• Maintenance of conveyor parts, pumps and fittings in food-adjacent zones
• Preventive sealing of enclosures to protect against moisture and contaminants

Key specifications

• Product type: Neutral-cure silicone sealant
• Volume/weight: 500 g cartridge
• Certifications: NSF H1 classification (suitable for incidental food contact)
• Primary substrates: Plastics and rubber (designed for adhesion to many elastomers and common plastics)
• Cured properties: Flexible, elastic silicone rubber with moisture resistance
• Operating environment: Suitable for use in food-adjacent maintenance and industrial environments

How to use

Ensure surfaces are clean, dry and free from oil, grease and loose material before application. Cut the cartridge tip to the desired bead size and apply using a compatible dispenser. Tool the joint within the skin time to achieve the required finish and remove excess material. Allow the sealant to cure at ambient temperature; cure time will vary with bead size, humidity and temperature. For best results, test adhesion on an inconspicuous area or sample part prior to full application.

Usage recommendations

Use appropriate personal protective equipment and follow site hygiene protocols in food-adjacent areas. Do not use on substrates where plasticiser migration is suspected without prior compatibility testing. Store the cartridge in a cool, dry place and use within the manufacturer’s recommended shelf life for optimal performance.