Polycarbonate (PC)

Custom Polyethylene Fabrication Services

Polycarbonate (PC) is a premier engineering-grade thermoplastic celebrated for its unparalleled impact resistance and exceptional thermal stability. Often referred to as “virtually unbreakable,” it is the material of choice for high-stress industrial and safety-critical applications. At Dipec, our fabrication expertise allows us to harness these robust properties through precision CNC routing, cold bending, and advanced thermoforming to produce parts that remain dimensionally stable even in demanding environments.
 
Whether your project requires high-clarity machine guards, ballistic-resistant glazing, or heat-resistant electronic enclosures, our technicians deliver high-performance solutions tailored to survive the rigours of heavy-duty industrial use.

Advantages of Polycarbonate

Polycarbonate is engineered for extreme environments where safety and longevity are non-negotiable. Its unique molecular structure provides a level of resilience that far exceeds standard clear plastics, making it the industry standard for high-risk protective applications.

Core Attributes of Polycarbonate (PC)

  • Extreme Impact Strength: Over 200 times stronger than glass and significantly tougher than PETG.
  • Optically Superior Clarity: Provides high light transmission with a crystal-clear visual finish.
  • High Thermal Resistance: Maintains physical properties at temperatures where other plastics soften.
  • Cold-Forming Capability: Can be curved or bent at room temperature without cracking or crazing.
  • Shatter-Proof Performance: Does not splinter or fragment, ensuring maximum safety for operators.
  • Precision Machinability: Ideal for intricate CNC drilling, milling, and edge finishing.
  • UV and Weather Resistance: Available in grades specifically treated to resist yellowing and outdoor degradation.
  • Flame Retardancy: Naturally high resistance to ignition, with various UL-rated grades available.

These superior characteristics establish Polycarbonate as the definitive material for high-performance fabrication where structural failure is not an option.

Polycarbonate Fabrication Expertise at Dipec

Leveraging decades of engineering experience and a suite of high-performance machinery, Dipec provides precision-engineered Polycarbonate solutions designed for the most demanding environments.

Advanced CNC Machining

Utilising high-speed routing and milling, we produce intricate Polycarbonate components with exceptional dimensional stability. Our process ensures burr-free edges and tight tolerances for safety glazing and industrial shields.

Cold Curving & Heat Forming

Unlike many plastics, Polycarbonate can be cold-bent or curved under tension without compromising its integrity. For more complex geometries, our controlled thermoforming processes create robust, three-dimensional parts that outperform PETG in high-heat applications.

Structural Bonding & Mechanical Fastening

We employ industrial-grade solvent bonding and mechanical assembly techniques to create high-strength joints. This ensures that housings and protective enclosures maintain their “unbreakable” status even at the seams.

Precision Sawing & Material Preparation

Using specialised triple-chip blades and CNC beam saws, we provide accurate panel sizing. Our cutting process is optimised to prevent the micro-cracking often seen in lower-quality fabrication, ensuring every panel is structurally sound.

Specialist Edge Polishing

To match the superior optical clarity of the material, we offer various edge-finishing services. From clean-sawn edges for industrial guards to high-clarity polished finishes for architectural glazing, we ensure a premium look and feel.

Technical Prototyping & Scaled Manufacturing

Our facility is equipped to handle everything from one-off safety prototypes to high-volume industrial runs, ensuring every Polycarbonate component meets rigorous quality control standards and safety certifications.

Industrial Applications for Polycarbonate

The extreme durability and thermal resilience of Polycarbonate make it the primary choice for mission-critical components across the security, engineering, and transport sectors.

Typical applications include:

  • High-Impact Machine Guarding: Heavy-duty safety screens that protect operators from high-speed debris.
  • Security Glazing & Ballistic Barriers: Impact-resistant panels for kiosks, banks, and high-security partitions.
  • Vandal-Resistant Signage: Durable outdoor covers and public-facing displays designed to withstand intentional damage.
  • Aviation & Automotive Components: Lightweight, heat-stable interior parts and transparent exterior fairings.
  • Electrical Enclosures & Insulators: Heat-resistant housings for sensitive electronics and power distribution.
  • Architectural Skylights & Canopies: Weather-resistant overhead glazing that offers superior safety over glass.
  • High-Pressure Inspection Windows: Clear viewports for industrial tanks and vacuum systems.
Polycarbonate is the preferred specification when Acrylic lacks the necessary impact strength or when PETG cannot meet the required thermal or structural safety ratings.

Polycarbonate Grades & Specification Options

To ensure the best performance for your specific environment, we offer Polycarbonate in a diverse range of technical grades and thicknesses.
 
Our common PC specifications include:
  • Standard High-Clarity PC: The “all-rounder” for general industrial glazing and shielding.
  • Abrasion-Resistant (Hard-Coated): Features a specialist coating to protect against scratches and chemical wear.
  • UV-Protected Grades: Specifically engineered for outdoor longevity, preventing yellowing and surface hazing.
  • Flame-Retardant (FR) Polycarbonate: UL-rated options for use in electrical assemblies and public transport.
  • Multi-wall & Structured Sheets: Lightweight, thermally efficient options for roofing and cladding.
  • Bullet-Resistant & Security Grade: Laminates designed for high-risk ballistic or containment applications.
Stock Thicknesses:

Standard sheets typically range from 1mm to 15mm, though we can source and fabricate heavy-gauge slabs or ultra-thin films for bespoke engineering requirements.

Your Professional Partner for Precision Polycarbonate Fabrication

With decades of technical expertise across the engineering and manufacturing sectors, Dipec provides:

✔ Advanced CNC Routing & Cold-Bending Mastery – Specialist techniques for the most durable thermoplastic.
✔ Expert Technical Fabricators – Decades of hands-on experience with high-impact Polycarbonate projects.
✔ Rapid Lead Times & Scalable Solutions – Efficient production from one-off prototypes to high-volume runs.
✔ End-to-End Project Management – Comprehensive support from initial material selection to final delivery.
✔ Rigorous Quality Standards – Every component is inspected for structural integrity and optical clarity.
✔ Sector-Wide Experience – A proven track record in the security, aerospace, and heavy-industry markets.

We deliver Polycarbonate components that are engineered to excel in the most challenging and high-risk environments.

Need Expert Polycarbonate Plastic Fabrication? 
Contact Dipec Today for a Quote.

POLYCARBONATE FAQs

Polycarbonate is highly heat-resistant, typically maintaining its structural integrity up to approximately 115°C to 130°C, far exceeding the thermal limits of many other transparent plastics.

While no material is literally indestructible, Polycarbonate has an impact strength roughly 250 times that of glass, making it virtually shatter-proof under extreme physical force or ballistics.

Standard PC can degrade under UV light; however, we specifically use UV-stabilised grades or “Long-Life” sheets for outdoor fabrication to prevent discolouration and brittleness.

It offers moderate chemical resistance but can be sensitive to strong alkalis and certain solvents. For harsh environments, we recommend a hard-coated (abrasion-resistant) grade for enhanced chemical protection.

The main trade-off is strength vs. aesthetics. Polycarbonate is significantly tougher and more flexible, whereas Acrylic is more scratch-resistant and has a slightly higher light transmission.

Yes. One of its greatest advantages is the ability to be cold-curved or brake-pressed at room temperature without the risk of stress fractures, which is not possible with most other rigid plastics.

Most Polycarbonate sheets are self-extinguishing and carry excellent fire ratings, such as Class 1 (BS 476 Part 7) or UL94 V-0, making them suitable for regulated commercial environments.

Because it is a “softer” engineering plastic, it can be prone to surface scratching. To combat this, we can fabricate using hard-coated sheets that offer glass-like surface hardness.

Yes, specific FDA-compliant and medical-grade Polycarbonates are available that meet strict hygiene and safety regulations for food processing and healthcare equipment.

You should use lukewarm water with a mild household detergent and a soft microfibre cloth. Avoid abrasive cleaners or “glass sprays” containing ammonia, which can cause “crazing.”

While it can be laser cut, it often leaves a discoloured, charred edge. For a professional, clean finish, we recommend our CNC routing and diamond polishing services instead.

Polycarbonate provides excellent sound insulation, often used in sound barriers and acoustic enclosures to reduce decibel levels in noisy industrial settings.

Absolutely. Its high dielectric strength and heat resistance make it a staple material for electrical spacers, covers, and switchgear components.

Polycarbonate is approximately 50% lighter than glass, allowing for easier installation and less substantial support structures in architectural projects.

Yes, we use specialist solvent cements or structural adhesives to create high-strength, transparent bonds between PC parts or other compatible substrates.

Crazing is the appearance of tiny cracks caused by internal stress or chemical exposure. We prevent this through precision machining and ensuring the material is not exposed to incompatible cleaning agents.

Yes, it is an excellent candidate for thermoforming and vacuum forming, though it must be “pre-dried” in an oven to remove moisture before the heating process to prevent bubbles.

At Dipec, our advanced CNC equipment allows us to maintain tight tolerances, typically within +/- 0.1mm to 0.5mm depending on the part geometry and material thickness.

Yes, it has a higher thermal expansion coefficient than metal or glass. We design our fabricated assemblies with “slotted holes” or expansion gaps to account for this movement.

Yes, Polycarbonate is a Category 7 plastic and can be reground and recycled into lower-grade applications, helping businesses meet their sustainability targets.