Hi-Rel Plastics & Molding Corp. provides custom plastic molding, mold and tooling manufacturing, engineering, prototyping, custom plastic and metal parts manufacturing, assembly and secondary manufacturing services for household products, housewares, consumer goods, appliances and consumer product OEMs throughout California and across the United States.
With more than 40 years of manufacturing experience, Hi-Rel Plastics & Molding supports consumer product manufacturers from initial product development and 3D printing / rapid prototyping through mold and tool manufacturing, production molding, decorating, assembly, packaging and ongoing production.
Our broad manufacturing capabilities include plastic injection molding, blow molding, liquid silicone rubber (LSR) molding, thermoforming and vacuum forming, rotational molding, precision tooling, plastic and metal CNC machining, mechanical assembly, cable assembly, ultrasonic welding, pad printing and other secondary manufacturing services.
This broad range of capabilities allows household and consumer product companies to consolidate multiple manufacturing requirements with one experienced manufacturing partner.
Successful consumer products must combine function, durability, appearance, ergonomics and competitive manufacturing costs.
Hi-Rel Plastics & Molding works with product developers, engineers, purchasing teams, established consumer brands and OEM manufacturers to transform product concepts into manufacturable components and finished assemblies.
Our manufacturing support can include:
Product Concept → Engineering Review → DFM → Material Selection → 3D Printing / Rapid Prototyping → Mold & Tool Manufacturing → Mold Sampling → Production Molding → Decorating & Secondary Operations → Assembly → Inspection → Packaging & Delivery
By supporting multiple stages of the manufacturing process, Hi-Rel Plastics & Molding can help customers simplify their supply chain while improving coordination between product design, tooling, molding and final assembly.
Precision molding ensures uniform parts with clean finishes and reliable performance.
Wide range of resins and design capabilities to support both function and aesthetics.
Efficient processes designed for large-scale consumer product manufacturing.
Optimized production methods to balance quality with competitive pricing.
Custom plastic injection molding is one of the most widely used manufacturing processes for producing repeatable, durable and aesthetically appealing consumer products and components.
Hi-Rel Plastics & Molding provides prototype, low-, medium- and high-volume plastic injection molding for consumer product manufacturers and OEMs.
Potential applications include:
Our injection molding capabilities can also incorporate insert molding, overmolding, multi-material molding and soft-touch features for products requiring enhanced functionality, ergonomics or appearance.
Custom blow molding is particularly valuable for producing lightweight hollow consumer products, bottles, containers and reservoirs.
Hi-Rel Plastics & Molding supports extrusion blow molding (EBM), injection blow molding (IBM) and injection stretch blow molding (ISBM).
Consumer and household applications may include:
Hi-Rel Plastics & Molding can complement blow molding with secondary services such as trimming, leak testing, pad printing, label application, assembly, packaging and other value-added operations.
Liquid silicone rubber molding provides design flexibility for consumer products requiring flexibility, sealing, temperature resistance, soft-touch characteristics or durable elastomeric performance.
LSR consumer product applications may include:
LSR can also be integrated with rigid plastic components for applications requiring multiple materials or functional surfaces.
Thermoforming and vacuum forming can provide cost-effective solutions for larger consumer components, trays, housings, covers and packaging applications.
Potential applications include:
Thermoforming can be particularly attractive for larger components or production programs where injection molding tooling may not provide the optimal economic solution.
Rotational molding provides a versatile solution for manufacturing larger hollow products requiring durability, impact resistance and seamless construction.
Potential household and consumer applications include:
Rotational molding can provide excellent design flexibility for large components that may be impractical to manufacture using conventional injection molding.
The quality, consistency, appearance and production economics of a molded consumer product begin with properly designed tooling.
Hi-Rel Plastics & Molding provides mold and tool manufacturing support for injection molding, blow molding, LSR molding, thermoforming, vacuum forming and rotational molding programs.
Tooling support can include:
Combining tooling and production support can help consumer product companies improve communication, accelerate product development and reduce manufacturing risk when transitioning from prototype to production.
Products Time-to-market is extremely important in the consumer products industry.
Hi-Rel Plastics & Molding supports product development through engineering assistance and 3D printing / rapid prototyping so customers can evaluate fit, form, function, assembly and design concepts before committing to production tooling.
Early manufacturing involvement can help identify potential issues involving:
Design for Manufacturability can help simplify tooling, improve molded-part quality and reduce unnecessary manufacturing costs.
Unlike many internal industrial components, consumer products are frequently visible and handled directly by the end user.
Appearance therefore matters.
Hi-Rel Plastics & Molding can support consumer products requiring attractive molded surfaces, textures, colors, branding and decorative features.
Available value-added capabilities include pad printing, hot stamping, label application, heat transfer decoration, painting, coating and surface treatment and enhancements.
These processes can be used for:
Product requirements determine the appropriate resin, molding finish and decorating method.
Many consumer products contain more than molded plastic components.
Hi-Rel Plastics & Molding can support custom plastic and metal parts manufacturing, including plastic and metal CNC machining, to help customers source components required for more complete product assemblies.
Applications can include plastic housings combined with metal brackets, inserts, fasteners, shafts, hardware, electrical components, cables and other mechanical parts.
Consolidating component manufacturing and assembly can reduce supplier complexity and simplify purchasing for consumer product OEMs.
Hi-Rel Plastics & Molding offers assembly services to convert individual molded components into subassemblies and more complete consumer products.
Capabilities can include:
By integrating molding, secondary operations and assembly, Hi-Rel Plastics & Molding can provide consumer product companies with a more complete contract manufacturing solution.
Consumer products frequently require additional operations after molding to achieve the desired function, appearance and retail presentation.
Hi-Rel Plastics & Molding offers a broad selection of secondary manufacturing services, including:
These services allow customers to source finished or near-finished components rather than coordinating molding, decoration and assembly through multiple suppliers.
Material selection affects product appearance, durability, chemical resistance, impact performance, flexibility, heat resistance and overall manufacturing cost.
Depending on the product requirements and manufacturing process, Hi-Rel Plastics & Molding works with a broad range of commodity and engineering-grade materials, including:
Material selection should be based on the individual product’s intended use, mechanical requirements, regulatory considerations, environmental exposure and production requirements.
Some consumer and household products require greater contamination control than conventional manufacturing environments can provide.
Hi-Rel Plastics & Molding offers cleanroom molding and clean room manufacturing capabilities with both Class 10,000 / ISO Class 7 cleanroom environments and Class 100,000 / ISO Class 8 cleanroom environments.
These controlled environments can support appropriate consumer, personal care, high purity or other specialized products requiring enhanced contamination control.
Hi-Rel Plastics & Molding can also provide clean room assembly for qualifying products and components.
Consumer products may be manufactured at substantial volumes, making repeatability and process control essential.
Hi-Rel Plastics & Molding Corp. maintains ISO 9001:2015, AS9100 Rev D and ISO 13485:2016 certifications, supporting disciplined manufacturing and quality management processes.
Our quality systems support consistent manufacturing, inspection, documentation and process control for demanding OEM programs.
These quality systems, combined with decades of plastics manufacturing experience, allow Hi-Rel Plastics & Molding to support consumer product companies requiring dependable long-term production.
Headquartered in Riverside, California, Hi-Rel Plastics & Molding Corp. supports household products, housewares and consumer product manufacturers throughout Southern California, Northern California and across the United States.
Our California location provides convenient manufacturing support for companies throughout:
Companies searching for a consumer products injection molding company in California, housewares plastic manufacturer, household products contract manufacturer or custom plastic parts manufacturer in the USA can work with Hi-Rel Plastics & Molding from initial product development through ongoing production.
40+ Years of Manufacturing Experience
Decades of plastics manufacturing experience support both straightforward and technically demanding consumer products.
Multiple Plastic Manufacturing Processes
Injection molding, blow molding, LSR molding, thermoforming, vacuum forming and rotational molding provide manufacturing flexibility across diverse product geometries and volumes.
Prototype Through Production
Engineering, rapid prototyping, mold manufacturing, molding, finishing and assembly support the complete product-development cycle.
Mold & Tool Manufacturing
Tooling support for multiple molding processes allows customers to coordinate tool development and production with one manufacturing partner.
Plastic & Metal Components
Custom plastic and metal manufacturing capabilities support multi-component consumer product assemblies.
Decorating & Secondary Operations
Pad printing, hot stamping, labeling, ultrasonic welding, surface finishing and other operations can transform molded components into finished or near-finished products.
Assembly Capabilities
Mechanical assembly, cable assembly, ultrasonic welding and other integration services can reduce the need for multiple vendors.
ISO-Certified Quality Systems
ISO 9001:2015, AS9100 Rev D and ISO 13485:2016 certifications demonstrate an established commitment to controlled manufacturing and quality.
Cleanroom Capabilities
Class 10,000 / ISO Class 7 and Class 100,000 / ISO Class 8 cleanroom environments provide additional manufacturing options for appropriate specialized products.
California Manufacturing Partner Serving the USA
Hi-Rel Plastics & Molding supports OEMs and product manufacturers throughout California and nationwide.
What consumer products can be manufactured with injection molding?
Plastic injection molding can manufacture appliance housings, handles, knobs, storage products, kitchen components, closures, dispensers, electronic housings, personal care components, sporting goods, tools and many other household and consumer products.
Can Hi-Rel Plastics & Molding help develop a new consumer product?
Yes. Hi-Rel Plastics & Molding can support engineering review, Design for Manufacturability, material selection, rapid prototyping, mold and tooling manufacturing, production molding, secondary operations and assembly.
Does Hi-Rel Plastics & Molding manufacture molds and tooling?
Yes. Hi-Rel Plastics & Molding supports mold and tooling manufacturing for injection molding, blow molding, LSR molding, thermoforming, vacuum forming and rotational molding programs.
Can consumer products include soft-touch components?
Yes. Depending on the application, overmolding, TPE/TPU materials or liquid silicone rubber molding can be considered for soft-touch grips, seals, flexible surfaces and ergonomic features.
Can you print logos or graphics on molded consumer products?
Yes. Hi-Rel Plastics & Molding offers pad printing, hot stamping, label application, heat transfer decoration and other surface treatment and enhancement options depending on the component and material.
Can Hi-Rel Plastics & Molding assemble the finished product?
Yes. Assembly capabilities include mechanical assembly, cable assembly, ultrasonic welding, heat staking, adhesive bonding, hardware installation, component integration and other secondary operations.
Does Hi-Rel Plastics & Molding provide consumer product manufacturing outside California?
Yes. Hi-Rel Plastics & Molding is headquartered in Riverside, California and supports customers throughout California and across the United States.
Whether you need a prototype, new production mold, injection molded component, blow molded container, LSR component, thermoformed part, rotational molded product, custom plastic or metal component, decorated part or complete assembly, Hi-Rel Plastics & Molding Corp. can support your project from product development through production.
Contact Hi-Rel Plastics & Molding Corp. to discuss your household or consumer product requirements, drawings, 3D CAD files, materials, tooling and estimated production quantities.
Household and consumer product components require durability, consistency, and cost-effective production to support everyday use across a wide range of applications. Hi-Rel Plastics produces precision-molded parts designed to deliver reliable performance, attractive finishes, dimensional consistency, and long-term functionality for household and consumer products ranging from storage solutions, appliance components to personal care and everyday-use items.
With experience in advanced engineering resins and quality-driven manufacturing, we help consumer product manufacturers and OEMs produce reliable molded components that meet both functional and high-volume production requirements.
Injection Molding
Blow Molding
Liquid Silicone Rubber (LSR) Molding
Thermoforming / Vacuum Forming
Rotational Molding
Precision molding ensures uniform parts with clean finishes and reliable performance.
Wide range of resins and design capabilities to support both function and aesthetics.
Efficient processes designed for large-scale consumer product manufacturing.
Optimized production methods to balance quality with competitive pricing.
