Hi-Rel Plastics & Molding Corp. provides contract filling and sealing services that can be integrated with plastic bottle and container manufacturing, assembly, labeling, decorating, inspection, and custom packaging for OEMs and product manufacturers throughout California and across the United States.
Our integrated manufacturing approach allows customers to combine the production of custom plastic containers with downstream filling, sealing, assembly, labeling, packaging, and other secondary operations through a single manufacturing partner.
As an ISO 9001, AS9100 and ISO 13485 certified manufacturer, Hi-Rel Plastics & Molding supports demanding manufacturing programs for medical, diagnostic, pharmaceutical related, industrial, automotive, consumer, cosmetic, laboratory, electronics, and other applications.
We also offer both Class 10,000 / ISO Class 7 cleanroom environments and Class 100,000 / ISO Class 8 cleanroom environments for qualifying manufacturing, assembly, filling, sealing, and packaging programs requiring controlled production environments.
Whether your project requires a custom blow molded bottle, molded closure, filled container, sealed package, labeled product, or a more complete manufacturing-to packaging solution, Hi-Rel Plastics & Molding can evaluate your specifications and production requirements.
Hi-Rel Plastics & Molding provides contract filling services for qualifying bottles, containers, and manufactured products based on customer-specified product and packaging requirements.
Filling programs can potentially be coordinated with:
The appropriate filling method depends on the product being filled, container design, fill volume, material compatibility, cleanliness requirements, closure system, production quantity, and customer specifications.
Our team reviews these factors before determining whether a filling program is appropriate for Hi-Rel Plastics & Molding’s manufacturing capabilities.
Provides added resistance to wear, corrosion, and environmental exposure.
Enhances conductivity, strength, and overall part functionality.
Delivers high-quality metallic finishes for a premium look.
Controlled processes ensure even plating across all surfaces.
A major advantage of working with Hi-Rel Plastics & Molding is the ability to combine plastic bottle manufacturing with filling and sealing services.
Our blow molding services manufacture custom hollow plastic products using processes including extrusion blow molding, injection blow molding, and injection stretch blow molding.
Blow molded products can include:
After manufacturing, qualifying products can move into appropriate secondary operations such as filling, sealing, labeling, printing, assembly, inspection, and custom packaging.
This integrated approach helps customers reduce the number of suppliers involved in producing a finished packaged product.
Customers requiring a finished bottle or container often need more than the empty plastic package.
Hi-Rel Plastics & Molding can support qualifying contract bottle filling programs where the filling operation can be incorporated into a broader manufacturing and packaging workflow.
Depending on project requirements, a program can involve:
Combining these manufacturing stages with one supplier can simplify purchasing, logistics, inventory management, and production coordination.
Our custom blow molding capabilities are particularly relevant to customers requiring filling and sealing because many blow molded products are ultimately used as bottles, containers, reservoirs, or fluid-handling products.
Hi-Rel Plastics & Molding’s blow molding capabilities support container sizes ranging from small precision products through larger hollow plastic components for medical, household, industrial, automotive, packaging, and other applications.
Secondary services available for qualifying blow molded products can include:
By integrating these operations with the primary molding process, customers can obtain a more complete production solution rather than purchasing an empty molded component and coordinating all finishing processes independently.
A properly sealed container can be critical for product protection, handling, transportation, storage, and end-use performance.
Hi-Rel Plastics & Molding can provide sealing operations for qualifying products depending on:
Seal design should be considered early in product development because the container, closure, materials, and downstream process all influence finished performance.
For customers developing new containers or closures, our engineering and tooling capabilities can help coordinate product design with manufacturing and secondary processing requirements.
Many contract filling programs involve multiple operations after the filling step.
Depending on the product and confirmed manufacturing requirements, Hi-Rel Plastics & Molding can coordinate filling with applicable operations such as:
Customers can combine these processes with our custom packaging services to move products from manufacturing through final packaging within a coordinated production program.
Product labels may provide branding, identification, instructions, warnings, traceability information, barcodes, lot information, or other customer-required data.
Hi-Rel Plastics & Molding provides label application services that can be integrated into appropriate filling and packaging programs.
Labels can be applied after container manufacturing and filling according to the approved production sequence and customer requirements.
Combining filling, sealing, and labeling reduces the need to transport products to multiple outside suppliers before final shipment.
Some bottles, containers, closures, or product components require permanent graphics or identification directly on the manufactured surface rather than a separate label.
Our pad printing services can be incorporated into qualifying filling, sealing, and packaging programs.
Pad printing can support logos, text, symbols, indicators, product identification, instructions, and other graphics depending on part material, geometry, ink system, and application requirements.
Many bottle and container systems incorporate injection molded components such as:
Our plastic injection molding services allow Hi-Rel Plastics & Molding to manufacture qualifying plastic components that can be integrated with blow molded containers, filling, assembly, sealing, and final packaging.
This provides another opportunity to consolidate multiple components and processes with one manufacturing partner.
New bottle, container, closure, or component programs may require custom tooling before production begins.
Hi-Rel Plastics & Molding provides mold and tooling manufacturing to support custom plastic products from initial development through production.
Our integrated capabilities allow customers to coordinate:
This prototype-to-production approach reduces the number of separate vendors needed as a new packaging or container program moves toward commercial manufacturing.
Container design affects filling efficiency, sealing, closure performance, handling, packaging, and shipping.
Hi-Rel Plastics & Molding provides engineering support and 3D printing / rapid prototyping to help customers evaluate product concepts before committing to production tooling.
Important design considerations can include:
Evaluating these factors early can help improve manufacturability and downstream production efficiency.
Medical, diagnostic, pharmaceutical-related, laboratory, biotechnology, and other contamination-sensitive products may require manufacturing and secondary operations within controlled environments.
Hi-Rel Plastics & Molding offers both Class 10,000 / ISO Class 7 cleanroom environments and Class 100,000 / ISO Class 8 cleanroom environments for qualifying programs.
Our cleanroom capabilities can potentially support coordinated manufacturing programs involving:
Cleanroom requirements vary significantly by product, process, and regulatory requirements. Hi-Rel Plastics & Molding evaluates each program individually to determine the appropriate manufacturing environment.
Hi-Rel Plastics & Molding is ISO 13485 certified and supports medical-device, diagnostic, healthcare, laboratory, and pharmaceutical-related manufacturing programs.
Our cleanroom medical injection molding services can be integrated with appropriate secondary manufacturing and assembly operations.
Potential products can include:
Hi-Rel Plastics & Molding can coordinate molding, secondary processing, clean room assembly, filling, sealing, labeling, inspection, and packaging where appropriate for the specific program.
We do not assume that every medical filling application requires the same process. Product requirements, cleanliness specifications, intended use, and applicable customer or regulatory requirements must be evaluated individually.
Our liquid silicone rubber molding capabilities can support custom seals, gaskets, diaphragms, valves, flexible components, and other silicone products used within dispensing, fluid-handling, medical, and industrial assemblies.
These components can potentially be integrated with injection molded and blow molded parts as part of a larger container, dispensing, or fluid-management assembly.
Combining thermoplastic and LSR molding with secondary operations allows Hi-Rel Plastics & Molding to support more complex multi-component product programs.
Some products require multiple components to be installed before or after the filling operation.
Our assembly services can support qualifying products requiring:
Products can then move through filling, sealing, labeling, inspection, and packaging depending on the approved manufacturing sequence.
Certain products may require components to be bonded as part of their finished assembly.
Our adhesive bonding services can support appropriate plastic-to-plastic, plastic-to-metal, or multi-material assemblies.
Adhesive compatibility must be evaluated according to the substrate materials, product contents, operating environment, bonding surfaces, and customer specifications.
For compatible thermoplastic components, ultrasonic welding may provide another method for creating permanently joined assemblies.
Our ultrasonic welding services can be incorporated into qualifying container or product assemblies before final packaging.
The correct joining or sealing method depends on product design, material compatibility, required joint performance, production quantity, and end-use requirements.
Industrial customers may require bottles, reservoirs, containers, dispensing products, and fluid-handling components for a wide variety of applications.
Potential applications can include:
Actual fill-product compatibility must be reviewed before production because certain materials or products may require specialized handling or regulatory controls.
The automotive and electric-vehicle industries use numerous plastic bottles, reservoirs, containers, and fluid-management components.
Our blow molding and injection molding capabilities can manufacture products such as:
Qualifying programs can incorporate secondary processes such as leak testing, assembly, labeling, filling, sealing, and packaging depending on customer requirements.
Consumer and household products represent another important application area for plastic container manufacturing and filling.
Potential applications can include:
Bottle design, resin selection, closure design, product compatibility, and labeling requirements should all be reviewed together during development.
Cosmetic and personal-care products often require attractive bottles and containers combined with consistent finishing, labeling, filling, and packaging.
Hi-Rel Plastics & Molding’s manufacturing capabilities can support qualifying programs involving custom blow molded containers, injection molded closures, decorated components, labeling, filling, sealing, and packaging.
Our integrated capabilities can help OEMs coordinate both the manufactured package and downstream secondary operations.
Research and laboratory applications often require small bottles, containers, closures, fluid-handling products, housings, and other precision plastic components.
Hi-Rel Plastics & Molding can support laboratory and diagnostic customers with plastic molding, cleanroom manufacturing, assembly, filling, sealing, labeling, and custom packaging depending on project requirements.
Hi-Rel Plastics & Molding operates under established quality management systems supporting demanding manufacturing programs.
Our certifications include:
Customer-specific filling and sealing programs may include documented work instructions, inspection requirements, product identification, traceability, labeling requirements, quantity verification, and other quality controls as required by the project.
Process controls should be developed around the actual product, container, fill material, closure system, and customer specifications.
Using one supplier for container manufacturing and downstream operations can provide several potential advantages.
Reduced Supplier Complexity
Customers can reduce the number of separate vendors required for molding, filling, assembly, labeling, and packaging.
Less Transportation
Containers can move directly from manufacturing into secondary production operations without unnecessary shipments between suppliers.
Reduced Handling
Fewer transfers can reduce component handling and simplify inventory control.
Improved Production Coordination
Container molding, secondary operations, filling, sealing, and packaging can be scheduled as parts of the same production program.
One Point of Responsibility
Customers gain a manufacturing partner with visibility across multiple stages of production rather than managing individual suppliers for each step.
Turnkey Manufacturing Potential
Appropriate programs can progress from product design through tooling, molding, filling, sealing, assembly, labeling, and packaging.
Hi-Rel Plastics & Molding offers more than a standalone filling operation. Our capabilities include:
This combination allows Hi-Rel Plastics & Molding to support customers from concept and tooling through container production, filling, sealing, assembly, labeling, packaging, and shipment preparation.
Hi-Rel Plastics & Molding is located in Riverside, California and serves customers throughout Riverside, San Bernardino, the Inland Empire, Los Angeles, Orange County, San Diego, Ventura, Southern California, Northern California, and across the United States.
Whether you require contract filling services, bottle filling, plastic container filling, filling and sealing, custom bottle manufacturing, filling and packaging, container assembly, labeling, or an integrated molding-to-packaging manufacturing program, our team can review your application and production requirements.
Need a manufacturing partner capable of producing your bottle or container and supporting downstream filling, sealing, labeling, assembly, and packaging?
Contact Hi-Rel Plastics & Molding to discuss your project.
For the most accurate review, provide available CAD files or drawings, container dimensions, desired plastic material, product or fill-material information, fill volume, closure and sealing requirements, estimated order quantity, annual usage, labeling requirements, cleanliness requirements, packaging specifications, and any customer specific quality requirements.
Our team can evaluate your application and determine how Hi-Rel Plastics & Molding’s manufacturing and secondary-service capabilities can support your program.
Hi-Rel Plastics provides filling and sealing services for products requiring accurate dispensing and secure package closure across industrial, consumer, medical, and specialty product applications.
The filling and sealing process involves accurately dispensing liquids, powders, gels, or other materials into containers or packaging, followed by sealing to help protect product quality and maintain containment during handling and transportation. Hi-Rel Plastics supports a range of packaging formats and sealing methods based on product and application requirements.
With integrated manufacturing, assembly, and packaging capabilities, we help customers streamline production while maintaining consistent quality, clean presentation, and dependable sealing performance.
Hi-Rel Plastics offers metal plating services to enhance the appearance, durability, and performance of plastic components. This process applies a thin metallic coating to parts, providing both functional and decorative benefits.
Metal plating improves surface properties such as wear resistance, corrosion protection, and electrical conductivity while delivering a high-end metallic appearance. Hi-Rel Plastics utilizes controlled plating processes to ensure uniform coverage, strong adhesion, and consistent quality.
With experience across a range of applications, we help manufacturers produce components that combine visual appeal with enhanced performance.
Provides added resistance to wear, corrosion, and environmental exposure.
Enhances conductivity, strength, and overall part functionality.
Delivers high-quality metallic finishes for a premium look.
Controlled processes ensure even plating across all surfaces.
Provides added resistance to wear, corrosion, and environmental exposure.
Enhances conductivity, strength, and overall part functionality.
Delivers high-quality metallic finishes for a premium look.
Controlled processes ensure even plating across all surfaces.
