What is P1 Paper Bakelite made from?

It is a thermoset composite made from layers of high-grade cellulose paper impregnated with phenolic resin, hot-pressed into a dense, rigid sheet.

What is the difference between P1 and F2 Bakelite?

P1 is paper-reinforced, offering excellent electrical insulation and smooth surface finish at a lower cost. F2 is fabric-reinforced, providing higher mechanical strength and impact resistance, making it better for structural or heavy-duty applications.

What voltage rating does P1 Paper Bakelite suit?

It performs well in low- to medium-voltage systems up to approximately 600 V. For higher voltages, use G10, G11, or F2 grades.

Is P1 Paper Bakelite flame-retardant?

Standard P1 is not flame-retardant. It has an HB flammability rating and should not be used where UL 94 V-0 compliance is required.

Is P1 Paper Bakelite waterproof?

No. It is not suitable for continuous moisture or outdoor exposure. Moisture ingress can reduce dielectric strength and cause dimensional change.

Is P1 Paper Bakelite conductive?

No. It is electrically non-conductive, making it ideal for isolating and insulating components in electrical assemblies.

Is it suitable for transformer or motor insulation?

Yes, when used in dry, internal environments such as spacers, supports, and coil formers.

Is P1 Paper Bakelite environmentally compliant?

Yes. It is asbestos-free, halogen-free, and compliant with RoHS 3, REACH, and WHS regulations.

What is the expected service life of P1 Paper Bakelite?

When properly installed in a dry, stable environment, P1 can last decades without degradation or loss of performance.

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P1 PAPER BAKELITE

P1 Paper Bakelite is a paper-reinforced phenolic thermoset composite designed for low-voltage electrical insulation, mechanical support, and general-purpose industrial applications. Manufactured from high-quality cellulose paper impregnated with phenolic resin, P1 delivers a strong balance of dielectric performance, moderate mechanical strength, and stable machinability at an economical price point.

Lightweight, rigid, and naturally flame-resistant, P1 Paper Bakelite is ideal for components that require good electrical isolation, dimensional stability, and clean fabrication without the need for high structural load capacity. It machines easily on CNC routers, mills, and saws, offering smooth edges and precise dimensional control for insulating plates, gaskets, supports, spacers, and terminal board components.

P1 Paper Bakelite remains one of the most widely used phenolic grades for electrical and mechanical fabrication across commercial, industrial, and OEM environments.

SPECIFICATIONS

Product Form

Sheets, rods, tubes, machined components,

and custom profiles

Standard Colours

Brown

Sheet Sizes

2440 × 1220 (Nominal size)

Thickness Range

0.8 mm – 25 mm

(up to ~50 mm – Larger thickness are to order)

Compliance

RoHS 3 Compliant – free from restricted substances (lead, mercury, cadmium, Cr VI, PBB, PBDE)
REACH Compliant – no Substances of Very High Concern (SVHC)
HCIS Aligned – compliant with Safe Work Australia’s Hazardous Chemicals Information System
WHS Aligned – meets Australian Model Work Health and Safety Regulations
Asbestos-Free
Halogen-Free
Non-toxic in solid form
Non-reactive under normal conditions
No ozone-depleting substances used in manufacture
IEC 60893 – Industrial Rigid Insulating Laminates
NEMA LI-1 Grade X – Paper Phenolic Insulation Standard
MIL-I-24768/11 Type PBM – U.S. Military Specification
GHS / WHS / HCIS Aligned for labelling and SDS compliance
UL File – Available on Request
Not biodegradable or recyclable through conventional means
Long service life minimises waste and replacement frequency
Safe industrial disposal by landfill or high-temperature incineration
Low emission in use – stable and non-volatile
Environmentally responsible production in line with RoHS and REACH

MECHANICAL PROPERTIES

ELECTRICAL PROPERTIES

THERMAL PROPERTIES

Exceptional Mechanical Strength
High compressive, flexural, and tensile strength suitable for structural insulation, load-bearing plates, and mechanically stressed components.
Superior Rigidity and Dimensional Stability
Maintains accuracy under load, heat, vibration, and machining—ideal for precision-cut electrical insulation parts.
Reliable Electrical Insulation
Strong dielectric performance for low- and medium-voltage assemblies, terminal boards, and switchboard components.
Excellent Heat Resistance
Performs consistently up to 120°C continuous and 150°C short-term, without loss of mechanical or electrical integrity.
High Wear and Impact Resistance
Withstands vibration, friction, and moderate mechanical shock to deliver long-service performance in industrial environments.
Good Machinability
Cuts, drills, mills, taps, and profiles cleanly on manual and CNC equipment with minimal risk of splintering or chipping.
Smooth, Professional Surface Finish
Produces clean, uniform edges suitable for switchboard interiors, control panels, and visible equipment panels.
Cost-Effective Engineering Solution
Strong performance-to-cost ratio makes it ideal for large-volume production and general electrical insulation applications.
Moisture and Chemical Resistance
Resists oils, greases, coolants, mild acids, and solvents; maintains stability even in humid environments.
Thermal and Electrical Consistency
Low thermal expansion combined with stable dielectric strength across a wide service temperature range.
Safe, Non-Conductive Material
Supports electrical isolation, reducing risk of arcing, tracking, and conductive failure.
Lightweight and Easy to Handle
Simplifies fabrication and assembly without compromising overall strength or reliability.
Low Maintenance, Long Service Life
Durable phenolic structure resists ageing, creep, and environmental stress, reducing replacement frequency.
Environmentally Compliant
RoHS 3 and REACH compliant, halogen-free, asbestos-free, and suitable for modern WHS and environmental standards.
Versatile Across Industries
Suitable for electrical, mechanical, tooling, pattern-making, and general industrial fabrication.

Switchboards and Electrical Panels
Backboards, partitions, arc barriers, equipment mounting plates, and structural insulation in low-voltage switchboards and control panels.
Transformers and Electrical Equipment
Terminal boards, spacers, coil supports, phase insulation, and general-purpose electrical insulating components.
Tooling, Fixtures and Jigs
Jig bases, templates, fixture plates, drill guides, and precision tooling surfaces requiring rigidity and dimensional accuracy.
Industrial Machinery and Equipment Insulation
Insulating spacers, wear plates, protective covers, and non-conductive support plates for machinery and process equipment.
Automotive, EV and Rail Components
Insulating gaskets, brackets, electrical mounts, and vibration-resistant components exposed to heat and mechanical stress.
Control and Relay Panels
Substrates and insulating plates for contractors, relays, PLCs, and automation assemblies.
Motor Rewind and Repair
Slot wedges, phase barriers, insulating supports, and structural plates used during rewinds, rebuilds, and refurbishment.
Power Generation and Distribution
Insulating supports, structural panels, and safety-critical insulation within switch gear, generator assemblies, and distribution equipment.
Prototype, Pattern and Model Making
Durable templates, forming plates, and pattern-making substrates used in tool rooms and fabrication workshops.
Mechanical Fabrication & CNC Machining
Precision-machined insulating housings, enclosures, brackets, cleats, and structural isolation components.
Educational, Testing & Training Boards
Reliable substrate material for lab boards, test rigs, demonstration panels, and vocational training equipment.
General Industrial Insulation
Suitable anywhere strong, rigid, non-conductive, dimensionally stable insulation is required in industrial or OEM environments.

Switchboard Builders & Electrical Panel Manufacturers
Back panels, mounting plates, insulating barriers, and internal switchboard components for LV assemblies.
Transformer Manufacturers
Terminal supports, coil spacers, insulation plates, and structural phenolic components for distribution and control transformers.
Motor Rewind & Repair Workshops
Slot wedges, phase barriers, insulating spacers, and mechanical supports for motor and generator refurbishment.
Electrical & Electronics Industries
Insulation plates, circuit backboards, terminal blocks, component spacers, and low-voltage insulating hardware.
Automotive, EV & Transport Equipment
Non-conductive housings, ignition insulation components, brackets, gaskets, and vibration-resistant insulating parts.
Rail, Rolling Stock & Infrastructure
Insulating panels for control cabinets, junction boxes, electrical housings, and protection systems in rail networks.
Power Generation & Electrical Distribution
Structural insulation and separation components in switch gear, generator assemblies, and power distribution systems.
Industrial Machinery & Fabrication Workshops
Jigs, fixtures, machine spacers, non-conductive tooling, and CNC machined insulating components.
Construction, HVAC & Engineering Services
Control panel backing boards, motor housings, insulation plates, and service tooling.
Defence, Military & Aerospace
Heat-resistant insulating components for ruggedised equipment, control systems, and field-grade electrical assemblies.
Renewable Energy & Battery Storage
Non-conductive supports and insulation plates for solar inverters, wind turbine equipment, and battery storage systems.

Proven Reliability
A long-established insulating material with a strong performance record in Australian electrical, industrial, and manufacturing environments.
Cost-Effective Engineering Solution
Provides an excellent balance between mechanical strength, electrical performance, and overall affordability—ideal for production-scale fabrication.
Ease of Machining
Cuts, drills, routs, and profiles cleanly on CNC, router, or manual machines, reducing fabrication time and minimising tool wear.
High Dimensional Stability
Retains thickness, alignment, and structural accuracy under machining pressure, thermal load, and moderate mechanical stress.
Reduced Maintenance and Downtime
Durable material with long service life, lowering the frequency of replacements in demanding installations.
Thermal and Electrical Safety
Consistent dielectric performance helps prevent tracking, arcing, and short-circuit risks across low- and medium-voltage systems.
Lightweight but Strong
Offers rigid mechanical support while keeping component weight low, simplifying handling and installation.
Chemical and Moisture Resistance
Performs reliably in oily, humid, and industrial conditions where many commodity plastics degrade or absorb moisture.
Environmentally Compliant
Asbestos-free, halogen-free, and fully compliant with RoHS 3 and REACH requirements.
Versatile Across Applications
Suitable for electrical, mechanical, tooling, jig-making, and pattern applications, enabling broad usage across industries.
Customisable and Fabrication-Friendly
Available in sheets, rods, blocks, and fully CNC machined components to customer drawings for seamless integration into production lines.

Downloads

All supporting documents for this material are available for download, including the latest technical data sheet, safety data sheet, machining and processing guidance, compliance information, and relevant product brochures.

These controlled documents provide specifications, performance data, handling requirements, and application notes to assist with design, material selection, and fabrication.

Each file is maintained by MISCO Australia to ensure current, reliable information for switchboard, transformer, industrial, and defence grade applications.

Frequently Asked Questions

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