Hi-Rel Plastics & Molding Corp. provides precision adhesive bonding services for plastic, metal, silicone, and multi-material components for OEMs and manufacturers throughout California and across the United States. Adhesive bonding provides an effective method for joining components where mechanical fasteners, ultrasonic welding, heat staking, or other conventional joining processes may not be suitable.
As an ISO 9001, AS9100 and ISO 13485 certified manufacturer, Hi-Rel Plastics & Molding combines adhesive bonding with plastic molding, engineering, tooling, machining, assembly, decorating, packaging, and other secondary operations to provide customers with complete contract manufacturing solutions.
Our adhesive bonding capabilities support customers requiring plastic-to-plastic bonding, plastic-to-metal bonding, dissimilar material bonding, component assembly, structural bonding, and precision adhesive assembly for medical, aerospace and defense, automotive, electronics, industrial, consumer, laboratory, pharmaceutical, and other demanding applications.
Adhesive bonding joins two or more components through an adhesive system selected according to the materials, part geometry, operating environment, and performance requirements of the finished assembly.
Unlike mechanical fasteners, adhesive bonding can distribute loads across a larger surface area while minimizing additional holes, hardware, or visible fastening features. The process can also provide clean cosmetic surfaces and make it possible to join components with complex geometries or dissimilar materials.
Hi-Rel Plastics & Molding evaluates the complete assembly when developing a bonding process, including substrate compatibility, joint design, surface condition, adhesive selection, application requirements, curing requirements, production volume, and end use environment.
Our adhesive bonding services can be incorporated into complete plastic injection molding, blow molding, thermoforming, rotational molding, machining, and assembly programs, helping customers consolidate manufacturing and secondary operations with a single supplier.
Modern products frequently combine multiple materials to achieve specific mechanical, electrical, cosmetic, weight, chemical-resistance, or performance requirements.
Hi-Rel Plastics & Molding supports adhesive bonding applications involving compatible combinations such as:
Material and adhesive compatibility must be evaluated for each application. Bond performance can depend on the specific resin or substrate, surface energy, adhesive chemistry, joint configuration, preparation process, curing conditions, temperature exposure, chemicals, moisture, vibration, and expected mechanical loads.
Adhesives selected to provide long-lasting strength and durability.
Eliminates the need for visible fasteners or weld marks.
Effective for bonding plastics, metals, and other materials.
Supports a variety of bonding techniques for different product requirements.
Reliable adhesive bonding requires more than simply applying an adhesive between two components. Proper adhesive selection, surface preparation, application control, fixturing, curing, and inspection can significantly affect finished assembly performance.
Depending on the application and customer specifications, our team can evaluate important manufacturing considerations such as:
Substrate Compatibility
Different thermoplastics, metals, elastomers, and other substrates can require different adhesive systems and preparation methods.
Surface Preparation
Proper cleaning and preparation help remove contaminants and improve conditions for consistent adhesive performance.
Joint Design
Bond-line geometry and available bonding surface can influence load distribution and finished assembly strength.
Adhesive Application
Controlled adhesive placement helps improve repeatability while minimizing excess adhesive and cosmetic defects.
Fixturing & Alignment
Components may require controlled positioning during assembly and curing to maintain dimensional requirements.
Curing Requirements
Cure time and process conditions depend on the selected adhesive chemistry and application requirements.
For applications requiring additional surface preparation or finishing, adhesive bonding can be combined with our surface treatment and enhancement services.
Medical devices, diagnostic products, pharmaceutical components, laboratory equipment, and other contamination-sensitive products may require assembly in controlled manufacturing 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 manufacturing and assembly programs.
Our ISO 13485 quality management system and cleanroom capabilities allow adhesive bonding to be integrated with cleanroom medical injection molding, clean room assembly, inspection, packaging, and other secondary operations for appropriate medical and life science applications.
Potential applications include diagnostic device components, medical equipment housings, laboratory assemblies, fluid-management components, disposable device components, pharmaceutical-related components, and other products requiring controlled manufacturing environments.
Hi-Rel Plastics & Molding is AS9100 certified and supports aerospace and defense manufacturers requiring tightly controlled manufacturing and secondary operations.
Adhesive bonding can provide advantages for aerospace components where minimizing hardware, joining dissimilar materials, maintaining cosmetic surfaces, or distributing loads across a bonded area is desirable.
Our aerospace and defense manufacturing capabilities can combine precision plastic manufacturing, tooling, machining, adhesive bonding, assembly, inspection, and other value-added operations within a coordinated manufacturing program.
As a full-service custom plastic injection molding company, Hi-Rel Plastics & Molding can manufacture molded components and perform adhesive bonding and assembly as part of the same production program.
This integrated approach can reduce the number of suppliers involved in a project and simplify transportation, purchasing, production coordination, inspection, inventory management, and final assembly.
Our manufacturing capabilities include prototype, low-volume, medium-volume, and high volume production programs using commodity, engineering-grade, and specialty thermoplastics.
Customers can also combine adhesive bonding with mold and tooling manufacturing, engineering, prototyping, CNC machining, printing, labeling, welding, assembly, packaging, and other secondary operations.
The appropriate plastic joining process depends on part materials, geometry, production quantities, cosmetic requirements, joint design, and end-use performance.
Adhesive bonding can be particularly useful when joining dissimilar materials or components that are not well suited to a thermal or ultrasonic joining process.
Ultrasonic welding can provide fast joining of compatible thermoplastic components without introducing an adhesive into the assembly.
Hi-Rel Plastics & Molding can evaluate the overall product design and manufacturing requirements to determine which available joining and assembly process is most appropriate for the application.
Adhesive bonding is only one part of our comprehensive secondary manufacturing capabilities.
Hi-Rel Plastics & Molding can combine adhesive bonding with assembly services, mechanical assembly, cable assembly, ultrasonic welding, heat staking, heat insertion, CNC machining, pad printing, labeling, hot stamping, surface treatment, packaging, inspection, and other value-added manufacturing operations.
Available complementary services include:
By integrating primary manufacturing and secondary operations, customers can reduce supplier complexity and move components from molding through assembly and finishing within a coordinated manufacturing program.
Our adhesive bonding and assembly capabilities can support components manufactured using multiple processes.
Injection Molded Components
Our injection molding services manufacture precision thermoplastic components that can subsequently undergo bonding, welding, decorating, machining, inspection, and assembly.
Blow Molded Components
Our blow molding services manufacture hollow plastic products and components that can be integrated with trimming, leak testing, labeling, printing, bonding, assembly, packaging, and other finishing operations.
Liquid Silicone Rubber Components
Our liquid silicone rubber molding capabilities support flexible seals, gaskets, diaphragms, and precision silicone components for medical, electronics, automotive, consumer, and industrial applications.
Thermoformed & Vacuum-Formed Components
Large housings, covers, trays, panels, and other formed plastic components may require secondary bonding, hardware installation, machining, printing, or final assembly.
Rotationally Molded Components
Large hollow components produced through rotational molding can be combined with secondary operations and assembly depending on product requirements.
Hi-Rel Plastics & Molding provides adhesive bonding and complete manufacturing solutions for customers across numerous industries, including:
Medical & Medical Devices – Precision bonded assemblies, diagnostic components, device housings, laboratory components, and other products requiring controlled manufacturing processes.
Aerospace & Defense – Plastic and mixed-material components requiring dependable manufacturing processes supported by an AS9100-certified quality system.
Automotive & Electric Vehicles – Housings, electronic components, interior assemblies, sensor components, brackets, covers, and other bonded assemblies.
Electronics & Electrical – Enclosures, housings, connectors, insulating components, sensor assemblies, and other precision components.
Research & Laboratory Equipment – Diagnostic housings, instrument components, laboratory assemblies, fluid-handling components, and equipment parts.
Pharmaceutical – Components and assemblies requiring controlled manufacturing and quality-focused production.
Industrial Equipment – Equipment housings, covers, controls, brackets, protective assemblies, and multi-component products.
Consumer & Household Products – Cosmetic assemblies, housings, handles, appliance components, dispensing products, and other finished consumer components.
Hi-Rel Plastics & Molding provides much more than a stand-alone adhesive bonding operation. Customers can consolidate product development, manufacturing, secondary operations, and assembly through an experienced California contract manufacturing partner.
Our capabilities include:
From prototype development through production, bonding, assembly, and packaging, Hi Rel Plastics & Molding helps OEMs consolidate manufacturing operations while maintaining quality, consistency, and dependable project support.
Located in Riverside, California, Hi-Rel Plastics & Molding supports OEMs and manufacturers throughout Los Angeles, Orange County, San Diego, Riverside, San Bernardino, the Inland Empire, Southern California, Northern California, and across the United States.
Whether your project requires plastic adhesive bonding, plastic-to-metal bonding, multi-material assembly, cleanroom adhesive bonding, medical device assembly, aerospace component bonding, or complete contract manufacturing, our team can evaluate your drawings, materials, quantities, and performance requirements to develop an appropriate manufacturing solution.
Looking for an experienced adhesive bonding company in California or a contract manufacturer capable of molding, bonding, finishing, and assembling your components?
Contact Hi-Rel Plastics & Molding Corp. with your CAD files, drawings, materials, estimated annual quantities, bonding specifications, and application requirements.
Our team can review your project and determine how our adhesive bonding, molding, assembly, and secondary manufacturing capabilities can support your production requirements.
Hi-Rel Plastics & Molding Corp. offers adhesive bonding services to securely join plastic and mixed-material components for a wide range of industrial applications. Adhesive bonding uses specially selected adhesives to create strong, durable connections between components without the need for mechanical fasteners or welding.
This process is ideal for assembling dissimilar materials, intricate geometries, and applications requiring clean finishes and reliable structural performance. Hi-Rel Plastics & Molding Corp. utilizes proven bonding methods, proper surface preparation, and material-compatible adhesive systems to help ensure consistent adhesion, durability, and long-term reliability.
With experience of a variety of materials and product applications, we support manufacturers with dependable bonding solutions for both simple and complex assemblies.
Hi-Rel Plastics offers adhesive bonding services to securely join plastic and mixed-material components. This process provides strong, reliable bonds for applications where mechanical fastening or welding may not be suitable.
Adhesive bonding allows for the joining of dissimilar materials while maintaining clean finishes and structural integrity. Hi-Rel Plastics utilizes proven bonding techniques and material selection to ensure strong adhesion, durability, and consistent performance.
With experience across a range of materials and applications, we help manufacturers achieve dependable assembly solutions for complex components.
Adhesives selected to provide long-lasting strength and durability.
Eliminates the need for visible fasteners or weld marks.
Effective for bonding plastics, metals, and other materials.
Supports a variety of bonding techniques for different product requirements.
Adhesives selected to provide long-lasting strength and durability.
Eliminates the need for visible fasteners or weld marks.
Effective for bonding plastics, metals, and other materials.
Supports a variety of bonding techniques for different product requirements.
