---
title: "Specify It Right | Termotray Technical Library"
description: "How to define material, wall thickness, ESD class, and tray life cycle based on the application, without paying for protection the part doesn't need."
url: "https://www.termotray.com.br/en/library/category/specify-it-right"
---

# Specify It Right

How to define material, wall thickness, ESD class, and tray life cycle based on the application, without paying for protection the part doesn't need.

- [All 10](https://www.termotray.com.br/en/library)
- [Specify It Right 4](https://www.termotray.com.br/en/library/category/specify-it-right)
- [Hidden Costs 1](https://www.termotray.com.br/en/library/category/hidden-costs)
- [Line Organization 2](https://www.termotray.com.br/en/library/category/line-organization)
- [Automation & Part Revisions 1](https://www.termotray.com.br/en/library/category/automation-and-revisions)
- [Smart Sourcing 2](https://www.termotray.com.br/en/library/category/smart-sourcing)

Specify It RightOctober 22, 2026

## [Functional trays: how to specify by life cycle](https://www.termotray.com.br/en/library/specify-trays-by-life-cycle)

How to specify a thermoformed tray: start with its life cycle, and only then define the material, wall thickness, and application requirements.

Specify It RightOctober 22, 2026

## [Conductive or dissipative: how to avoid overpaying](https://www.termotray.com.br/en/library/conductive-vs-dissipative)

Conductive vs. dissipative ESD trays by application: where insulative material fits, typical resistance ranges, and what to check on incoming material.

Specify It RightOctober 22, 2026

## [Topical or in-resin: which ESD protection lasts as long as you need it](https://www.termotray.com.br/en/library/topical-vs-in-resin-antistatic)

Anti-static packaging can lose its protection before the tray wears out. See how to match topical or in-resin anti-static to the tray's life cycle.

Specify It RightOctober 22, 2026

## [Expendable or returnable trays: the full cost](https://www.termotray.com.br/en/library/expendable-vs-returnable-trays)

Cost per cycle, freight, disposal, and part damage all count toward the full cost. See how to choose expendable or returnable trays based on where they go.

## Send your technical question to our engineers

If you didn't find your answer here, ask us. Your question could become the topic of a future article.

[Contact Engineering](https://wa.me/5511976999471?text=Hi%20Termotray%2C%20I%20have%20a%20part%20I'd%20like%20your%20engineering%20team%20to%20evaluate.)

---

Termotray is a Brazilian manufacturer of custom thermoformed trays for auto parts, electronics, and sensitive components, based in Guararema, São Paulo.
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