Custom Plastic PETG Thermoforming Services

PETG thermoforming is a manufacturing process where PETG plastic sheets are heated to a specific forming temperature, then shaped over a mold using vacuum pressure to remove air between the material and the mold surface. The formed part is then trimmed to precise specifications. PETG (Polyethylene Terephthalate Glycol) is valued for its excellent clarity, impact resistance, chemical stability, and ease of thermoforming. This process is ideal for producing custom enclosures, radomes, medical components, and industrial parts with complex geometries at lower tooling costs compared to injection molding.

PETG offers exceptional clarity similar to acrylic, superior impact resistance compared to polystyrene, excellent chemical resistance, and good dimensional stability. It thermoforms easily with minimal shrinkage, accepts printing and fabrication well, and maintains durability across a wide temperature range. PETG is FDA-compliant for food contact and medical applications, making it ideal for healthcare enclosures, protective covers, retail displays, and telecommunications radomes. Its combination of optical clarity, toughness, and processability makes PETG a versatile choice for both functional and aesthetic custom plastic components.

PETG thermoforming costs depend on part size, complexity, tooling requirements, production volume, and finishing operations. Prototyping with low-cost wood or polyurethane molds minimizes upfront investment, while aluminum production tooling ensures precision for high-volume runs. Thermoforming generally offers 40-60% cost savings over injection molding for medium to large parts and lower production quantities. Hill Plastics provides competitive pricing tailored to your specifications, balancing material selection, tooling design, and production methods to deliver cost-effective PETG parts. Request a detailed quote based on your drawings and volume requirements for accurate project costing.

Lead times vary based on project complexity and production volume. For prototyping, a CNC-milled wood master pattern can often be produced in just a few weeks, with formed prototypes following shortly after. Production tooling using aluminum castings typically takes 4-6 weeks depending on part complexity. Once tooling is complete, production runs are scheduled based on volume—small batches can be produced within days, while high-volume orders are efficiently managed using our rotary thermoforming equipment with 2.5x faster cycle times. We prioritize quick turnaround times to help you stay on schedule.

Yes, our sales and engineering team, including Brad Hill and Cody Hill, provides comprehensive assistance with PETG material selection and product design optimization. We evaluate your application requirements—including impact resistance, chemical exposure, temperature range, UV resistance, clarity needs, and budget—to confirm PETG is the optimal choice or recommend alternatives. We also advise on tooling design, draft angles, wall thickness, undercuts, and feature integration to ensure successful thermoforming and cost-effective production. Using SolidWorks CAD, we can refine designs and create prototypes for functional testing before committing to production tooling.

Hill Plastics offers comprehensive secondary operations to deliver finished PETG components ready for installation or assembly. Services include precision CNC trimming and cutting using two 5'x10' trimming centers, precision drilling for fasteners and mounting holes, heat bending for additional forming or edge details, bonding and welding for multi-piece assemblies, riveting and fastener installation, threaded insert installation for secure attachments, and custom edge finishing. Our fabrication capabilities allow us to apply multiple operations in-house, ensuring tight tolerances, consistent quality, and streamlined production from forming through final assembly.

Absolutely. We strongly recommend prototyping to validate design fit, function, and appearance before investing in production tooling. We produce PETG prototypes using low-cost wood or polyurethane molds CNC-milled to your print specifications. This allows you to physically review the part, test functionality, and make design adjustments easily and affordably. Once the prototype is approved, the master pattern is used in the aluminum casting process to create durable production molds. This staged approach minimizes risk, accelerates time-to-market, and ensures the final PETG parts meet all performance and aesthetic requirements.

PETG thermoforming serves a wide range of industries due to the material's versatility and performance characteristics. Key sectors include aerospace and aviation (radomes, interior panels, protective covers), telecommunications (antenna enclosures, equipment housings), medical devices and healthcare (instrument covers, protective shields, sterile enclosures), industrial equipment and OEM manufacturing (machine guards, control panels, custom housings), point-of-purchase and retail display (product showcases, signage), marine (enclosures, protective covers), electronics and electrical equipment (component housings), and defense applications. Hill Plastics has served these industries for 45 years with precision PETG solutions.