Common Defects in ABS Returnable and Reusable Thermoformed Trays for automotive and mobility and How to Prevent Them

Most quality claims on thermoformed parts trace back to a handful of root causes. Learn to recognise them on the drawing, in the tool and on the finished part.

The notes below come from day to day production and export work with overseas buyers.

Product Overview

This category covers a family of products rather than a single item. In practice a buyer defines returnable and reusable thermoformed trays 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 RFID and barcode options; washable designs; stack and nest configurations. Materials most often specified are Polycarbonate, Polyethylene Terephthalate, Acrylonitrile Butadiene Styrene, High Density Polyethylene, and the choice between them changes stiffness, temperature resistance, chemical behaviour and price.

In the automotive and mobility sector the decision is usually driven by dimensional stability and heat resistance, with impact strength as a secondary requirement. Typical end uses include interior panels, line side trays, dunnage trays.

Key Material Properties

The table below summarises the values that usually decide the material choice.

Acrylonitrile Butadiene Styrene is frequently the default selection here: ABS is the default choice when a part needs a glossy, paintable, impact-resistant surface.

Failure Modes and Prevention

Each defect below has a root cause that can be removed at the design or tooling stage.

• loss of stiffness – usually caused by gate position; prevent it by controlling incoming inspection.
• warpage in drying ovens – usually caused by melt temperature; prevent it by controlling cycle parameters.
• stack height growth over time – usually caused by cooling rate; prevent it by controlling tool design.
• label wear – usually caused by tool wear; prevent it by controlling incoming inspection.
• cracking after repeated washing – usually caused by material moisture; prevent it by controlling tool design.

Common Grades and Variants

• Acrylonitrile Butadiene Styrene based: high impact toughness
• Polyethylene Terephthalate based: excellent barrier to CO2 and moisture
• High Density Polyethylene based: high impact strength even at low temperature
• Polycarbonate based: outstanding impact strength (250x glass)

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.

Processing and Finishing Options

Processing method drives both cost and performance, so it should be fixed early in the design.

• Thick gauge forming
• Welding
• Barcode labelling
• Twin sheet forming

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.

How to Specify Returnable and reusable thermoformed trays Correctly

These are the criteria that actually predict whether the part will perform in service.

1. check washing temperature compatibility
2. validate stack height over the full pool size
3. define the expected number of trips and the payback
4. specify identification method for tracking
5. plan a repair and replacement policy

Send this list to your supplier with the drawing and you will receive comparable quotations from every factory you contact.

Frequently Asked Questions

Which certifications can you provide?

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.

Do you offer samples?

Yes. Standard samples are normally free of charge and shipped within three working days; custom samples are charged at cost and credited against the first production order.

How do you control colour consistency?

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.

Can you produce returnable and reusable thermoformed trays in Acrylonitrile Butadiene Styrene?

Yes. {mat1} is one of our regular materials for this item, and we can supply virgin, modified and certified grades with full traceability. Material certificates and test reports are issued per batch.

What packing and shipping options are available?

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.

Conclusion

If you are planning a new automotive and mobility project, send us your drawing, annual volume and target properties, and we will come back with a material proposal, a tooling plan and a budget quotation.