How to Choose the Right Material for Custom Thermoformed Trays

Choosing the right material is one of the most important steps in a custom thermoformed tray project. The material you choose can affect product protection, appearance, cost, shipping performance, and whether the tray can meet food, medical, electronics, or industrial application requirements.

For many buyers, the first question is often:

“How much does a custom tray cost?”

But before calculating the final price, it is more important to understand what material is suitable for your product.

Different plastic materials have different strengths. Some are better for clear retail display. Some are better for food packaging. Some are more suitable for electronic components, medical devices, or heavy-duty industrial parts.

In this guide, we will compare common thermoformed tray materials including PET, PETG, PVC, PP, PS, and ABS, and explain how to choose the right option for your custom tray project.

Why Material Selection Matters for Custom Thermoformed Trays

Custom thermoformed trays are used to hold, protect, display, and transport different products. A good tray should not only fit the product shape, but also match the product’s real application.

Material selection can affect:

• Product protection during handling and shipping
• Tray clarity and product display effect
• Tray strength and impact resistance
• Heat resistance or food-related requirements
• Anti-static or conductive performance
• Sustainability direction
• Mold design, sampling, and final production cost

For example, a clear cosmetic tray may need good transparency and a premium appearance. An electronic component tray may need anti-static material. A food tray may require food-related material options. An industrial part tray may need thicker material and a stronger structure.

That is why material selection should be based on product size, weight, application, display needs, shipping conditions, and budget.

For most custom thermoformed trays, material selection and tray structure should be evaluated together. A material that works well for one product may not be suitable for another product with different weight, shape, shipping conditions, or display requirements.

Common Materials Used for Thermoformed Trays

Before looking at each material in detail, the table below gives a simple overview of common thermoformed tray materials and their typical applications.

This table is only a general reference. The final material choice should still depend on product requirements, tray design, material thickness, production quantity, and target market standards.

PET

PET is one of the most commonly used materials for thermoformed trays. It has good clarity, good strength, and is widely used in food packaging, medical packaging, electronics packaging, and retail product trays.

For buyers who need a clear, cost-effective, and recyclable tray material, it is often a practical starting point.

It is suitable for:

• Food trays
• Medical packaging trays
• Electronics packaging trays
• Retail display trays
• Transparent product packaging

PET is a practical choice when your project needs clear appearance, stable forming performance, and good overall cost control.

For many custom tray projects, PET is selected because it can balance appearance, protection, cost, and production feasibility.

PETG

PETG is also a clear material, but it usually provides better toughness and a more premium appearance than standard PET. It is often used when the product requires stronger protection, better forming performance, or a higher-end visual effect.

PETG is suitable for:

• Medical device trays
• Cosmetic trays
• Premium product packaging
• Products that need stronger clear packaging
• Trays with deeper or more complex shapes

Compared with PET, PETG usually costs more. However, for products that require stronger protection or better presentation, PETG can be a better material choice.

PETG is often considered when the product value is higher, the tray structure is more complex, or the packaging needs to support a more premium brand presentation.

PVC

PVC is easy to form and has good clarity. It has been widely used in blister packaging and tray packaging for many years. One of its main advantages is cost control.

PVC is suitable for:

• Low-cost blister packaging
• Simple retail packaging
• Tool packaging
• Stationery packaging
• General product trays

However, PVC is not always the best choice for projects with strict sustainability requirements. If your product is sold in markets with higher environmental expectations, PET or PP may be more suitable options.

PVC can still be considered for budget-sensitive projects, but the final choice should depend on application, market requirements, and customer standards.

PP

PP is known for good heat resistance and chemical stability. It is often used for food-related packaging, medical trays, and applications where the tray may need better temperature resistance.

PP is suitable for:

• Food packaging trays
• Heat-resistant trays
• Medical trays
• Laboratory or diagnostic kit trays
• Applications requiring better chemical stability

Compared with PET, PP usually has lower transparency. It can also be more difficult to form in some designs. However, when heat resistance or food-related performance is important, PP can be a strong option.

PP is often considered when the tray needs to support food-related applications, temperature resistance, or chemical stability rather than high transparency.

PS

PS is a lightweight and cost-effective material. It is easy to form and suitable for simple tray structures. It is often used when the product does not require high impact resistance.

PS is suitable for:

• Simple product trays
• Lightweight packaging inserts
• Low-cost thermoformed trays
• Electronic component inserts
• General industrial organizing trays

The main limitation of PS is that it can be more brittle than PET, PETG, or PP. If the product is heavy, fragile, or requires strong protection during shipping, PS may not be the best option.

PS is more suitable for simple, lightweight, and cost-sensitive tray projects.

ABS

ABS is different from common clear packaging materials. It is not usually chosen for high-transparency display trays. Instead, ABS is often used for stronger, thicker, and more structural thermoformed parts.

ABS is suitable for:

• Heavy-gauge thermoformed trays
• Industrial components
• Equipment housings
• Automotive parts
• Durable custom plastic parts
• Rigid trays for heavier products

ABS has good impact resistance and rigidity. It is often used when the tray or thermoformed part needs to be stronger, thicker, or more durable.

If your project is not only a packaging tray, but also an industrial plastic component or protective housing, ABS may be worth considering.

PET, PETG, or PVC: Which Clear Tray Material Should You Choose?

For many custom tray projects, buyers need a clear material. Clear trays are commonly used for product display, visual inspection, retail packaging, and clean presentation.

The three most common clear material options are PET, PETG, and PVC.

Choose PET if you need a clear and cost-effective tray

PET is a good default option for many custom thermoformed trays. It offers good clarity, good strength, recyclability, and wide application coverage.

It is commonly used for food, medical, electronics, and retail packaging.

Choose PETG if you need stronger protection or a premium appearance

PETG is more suitable when the product needs a stronger clear tray, better toughness, or a higher-end packaging appearance.

It is often used for medical devices, cosmetics, and premium product packaging.

Choose PVC if cost control is the main priority

PVC can be used for simple and cost-sensitive packaging. It is easy to form and has good clarity.

However, if your project has stronger sustainability requirements, PET or PP may be a better choice.

In simple terms:

• Need a clear and cost-effective tray? Choose PET.
• Need a stronger and more premium clear tray? Choose PETG.
• Need a low-cost option for simple packaging? PVC may be considered.
• Need better environmental acceptance? PET or PP may be more suitable.

In many retail packaging projects, clear thermoformed trays are also combined with folding cartons or rigid boxes to create a complete paper-plastic packaging structure. In this situation, material selection should consider both tray performance and the final packaging presentation.

When Should You Choose PP or PS?

PP and PS are also widely used in thermoformed trays, but they serve different needs.

PP is better for heat resistance and food-related applications

PP is commonly selected when the tray needs better heat resistance, chemical stability, or food-related performance. It is often used in food packaging, medical trays, and some laboratory packaging applications.

If your product is related to food, medical supplies, or temperature-sensitive applications, PP may be a good option.

PS is better for simple and cost-sensitive trays

PS is a cost-effective material for simple tray structures. It is lightweight and easy to form, which makes it suitable for general packaging inserts and organizing trays.

However, PS is more brittle than some other materials. If your product needs strong protection, higher impact resistance, or long-distance shipping durability, PET, PETG, PP, or a thicker material design may be better.

When Do You Need Functional Materials?

Some products require more than basic plastic materials. For special applications, functional material solutions may be needed.

Anti-static materials

Anti-static trays are commonly used for electronic components, circuit boards, chips, sensors, and precision parts.

These trays help reduce static buildup during production, handling, transportation, and storage.

Conductive materials

Conductive trays are used when higher static protection is required. They are often used for sensitive electronic components or production-line handling.

Biodegradable materials

Biodegradable materials may be considered for brands or applications with sustainability requirements. However, the final choice should still consider product strength, forming performance, heat resistance, cost, and actual application conditions.

Specialty materials

Some projects may require special color, low-temperature resistance, high-matte surface, waterproof performance, or other functional material properties.

For custom tray projects, these requirements should be discussed early so the right material and thickness can be evaluated before sampling.

How to Choose the Right Material Based on Your Product

The easiest way to choose a thermoformed tray material is to start from your product application.

Instead of asking only “Which material is cheaper?”, it is better to consider what the tray needs to do: display the product, protect the product, resist heat, reduce static, support heavy weight, or improve shipping efficiency.

A material should not be selected only by price. The better approach is to balance cost, protection, appearance, function, and production feasibility.

If your product needs long-distance shipping protection, material thickness, tray structure, cavity design, and stackability are just as important as material type.

Material Choice Also Affects Cost and Production

Material selection will directly affect the final cost of custom thermoformed trays.

The main cost factors include:

• Material type
• Sheet thickness
• Tray size
• Tray depth
• Design complexity
• Mold structure
• Order quantity
• Functional material requirements
• Packing and shipping needs

For example, a thicker material can improve strength, but it will also increase material cost. A complex tray structure may require more detailed mold design. Functional materials such as anti-static or conductive materials may also increase the unit price.

At the same time, good tray design can help reduce cost.

A stackable tray can save storage and shipping space. A simplified structure can reduce mold and material waste. A suitable thickness can protect the product without overusing material.

That is why material selection and tray structure should be considered together.

Work with Haixu to Select the Right Custom Tray Material

Choosing the right material for custom thermoformed trays depends on many details, including product size, weight, application, display requirements, shipping conditions, budget, and production quantity.

Haixu Packaging supports custom thermoformed tray projects with flexible material selection, functional material options, heavy-gauge thermoforming, and paper-plastic packaging integration.

Whether you need PET trays, PETG trays, PP trays, anti-static trays, industrial ABS parts, or custom trays combined with paper packaging, our team can help evaluate the right material and structure before production.

If you are not sure which material is suitable for your project, you can send us your product size, drawing, material preference, application, and estimated quantity. We will help recommend a suitable custom tray solution based on your product requirements.

Whether you need a standalone thermoformed tray or a complete paper-plastic packaging solution, Haixu can help evaluate the right material, tray structure, and packaging configuration for your project.