Insulating and Conductive Components for Precision Assemblies

PP Shim supplies precision-cut shims and packers for the electrical and electronics industries – both non-conductive plastic for insulation applications and conductive metals for grounding, spacing and alignment. We work with design engineers, OEM manufacturers, electronics assemblers and repair technicians across Australia.

Our electrical shims are available in engineering plastics, copper, brass and stainless steel, supplied as standard sizes, custom cuts or pre-sorted kits. PP Shim also supplies precision shims across a wide range of other industries.

Why Electrical Engineers Trust PP Shim

Non-Conductive and Conductive Options

Plastic shims for electrical insulation and isolation alongside copper, brass and stainless steel for conductive, grounding and structural applications.

Precision-Cut to Tolerance

Manufactured to tight dimensional tolerances for use in compact assemblies, fine-pitch component layouts and clearance-critical installations.

Bulk Supply for Manufacturing

Consistent quality across high-volume production runs for OEM lines, contract manufacturers and panel builders. Batch traceability is maintained.

Custom Sizes & Specifications

Shims cut to your drawings and specifications for OEM production, prototype development or repair applications. Any stocked material, any profile.

Fast Turnaround, Australia-Wide

Short lead times with reliable nationwide shipping. From inner-city commercial sites to remote regional projects, we keep your programme moving.

View our Full Shim Product Range

Where Electrical and Electronics Shims Are Used

Shims control spacing, insulation clearances and alignment in electrical systems where precision directly affects safety and performance. Common applications include:

- PCB Assembly and Spacing: Maintaining clearances between circuit board layers, component stacks and heat sinks. Plastic shims specified for insulation; thin-gauge metal shims for grounding and EMI shielding.
- Switchgear and Panel Insulation: Non-conductive plastic shims isolating live components and busbars within switchboards, distribution panels and high-voltage enclosures to prevent short circuits and maintain safe clearances.
- Motor and Generator Alignment: Shimming rotor-to-stator air gaps, bearing housings and mounting feet to reduce vibration, correct alignment and maintain operating clearances during assembly and repair.
- Connector and Terminal Alignment: Controlling spacing and contact pressure in electrical connectors, terminal blocks and relay assemblies where consistent contact is required.
- Prototyping and Custom Electronics: Aligning components and fine-tuning tolerances during design validation, prototype assembly and short-run production.

Types of Shims for Electrical & Electronics Applications

Shim Type	Materials	Use Case	Features
Flat Precision Shims	Stainless steel, brass, plastic	PCB spacing, switchboard builds	Ultra-thin, custom cut, non-conductive or metal
Slotted Shims	Stainless steel, mild steel	Quick installs in tight assemblies	Easy to fit around fasteners or bolts
Thin Gauge Shims	Plastic, stainless, brass	Delicate components, low-clearance assemblies	Fine tolerances, flexible or rigid materials
Tab Washers	Mild steel, stainless	Locking electrical components in position	Prevents loosening in vibration-heavy systems
Shim Kits	Mixed materials	Field repairs, workshops, electronics assembly	Pre-packed, ready for service use

Not too sure about which shim product is right for you? Reach out to our team, and we’ll guide you in selecting the right material, thickness, and format for your electrical project.

Find The Right Shim

Compliance and Quality Assurance

PP Shim supplies electrical and electronics shims manufactured under ISO 9001 quality management systems. Our products align with relevant Australian and international standards including:

- AS/NZS 3000:2018 – Wiring Rules
- IEC standards where applicable to component-level electrical assemblies

All shims are dimensionally inspected before dispatch to ensure consistent sizing and material integrity. For applications requiring specific material certifications or test reports, contact our team to discuss your compliance requirements.

Order Electrical and Electronics Shims

Speak to our technical team about your electrical shim requirements. Whether you need insulating plastic packers for panel work, copper shim stock for conductive applications or custom-cut shims for an OEM production line, we’ll confirm the right material, thickness and quantity.

Frequently Asked Questions

What materials are suitable for insulating shims?

We supply non-conductive engineering plastic shims in a range of grades for insulating and spacing live components. Material selection depends on the voltage rating, operating temperature and mechanical load of your application. Contact our team if you need help specifying the right grade.