If you specify High Density Polyethylene (HDPE) for thick gauge thermoformed machine housings, a handful of properties decide whether the part survives forming and service. These are the values worth checking on every data sheet.
Everything here can be checked on a real sample before you commit to a production order.
This category covers a family of products rather than a single item. In practice a buyer defines thick gauge thermoformed machine housings by three things: the base resin, the format or dimension, and the performance or certification level it has to meet. Typical options in this category include gauge 2.0 to 10.0 mm; panel sizes over 2000 mm; moulded in colour and post painted. Materials most often specified are PC/ABS Alloy, High Density Polyethylene, Acrylonitrile Butadiene Styrene, Polycarbonate, and the choice between them changes stiffness, temperature resistance, chemical behaviour and price.
In the home appliance sector the decision is usually driven by deep draw capability and chemical resistance to insulation foam, with surface quality as a secondary requirement. Typical end uses include freezer interiors, door panels, control panel surrounds.
The table below summarises the values that usually decide the material choice.
| Material | Density | Tensile strength | Service temperature |
|---|---|---|---|
| Polycarbonate | 1.20 g/cm³ | 55-70 MPa | -40°C to 120°C |
| High Density Polyethylene | 0.94-0.97 g/cm³ | 20-32 MPa | -50°C to 80°C |
| PC/ABS Alloy | 1.13-1.15 g/cm³ | 45-60 MPa | -30°C to 110°C |
High Density Polyethylene is frequently the default selection here: HDPE combines toughness with chemical inertness, which is why it dominates pipe and tank markets.
Typical values for a general purpose grade are listed below; filled, stabilised and speciality compounds will differ.
Density 0.94-0.97 g/cm³, tensile strength 20-32 MPa, continuous service temperature -50°C to 80°C and melt range 130-137°C are the four values to circle on the data sheet. Everything else is secondary for most home appliance projects.
Beyond the base resin, most suppliers offer UV stabilised, food contact, flame retardant, anti-static and recycled content versions of the same product. Ask which additive package is included, because it is often the difference between a part that lasts three years and one that lasts ten.
Each step below has its own control points, and skipping one of them is where most defects start.
Secondary operations such as printing, welding, machining and assembly are often cheaper to do in the same factory, and they reduce the risk of mismatch between components.
Use this checklist when comparing two or three supplier quotations.
Send this list to your supplier with the drawing and you will receive comparable quotations from every factory you contact.
Standard production tolerance follows the relevant ISO or DIN tolerance class for the process; tighter tolerances are possible after machining or grinding, but they add cost. Define the tolerance only on the functional dimensions.
We can provide ISO 9001 quality system documentation, material certificates, RoHS and REACH statements, and where applicable food contact, flame retardancy or drinking water approvals. Tell us your target market and we will match the document set.
Colour is controlled with a masterbatch reference approved by the customer, and every production lot is checked against the approved sample under standard lighting before shipment.
Standard packing is export cartons on fumigation-free pallets, with custom labelling, barcode and retail packing available. We also handle consolidated containers and door to door delivery.
For standard sizes and colours the minimum is usually one pallet or one production run; for custom tooling the economic minimum depends on the tooling cost amortised over the expected volume. Send us your annual volume and we will calculate the break even point.
Our team supplies thick gauge thermoformed machine housings to home appliance customers worldwide, with samples, material certificates and full inspection reports available before mass production.
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