<p>The PEI will be fine. It's widely used in industrial high impact, high heat and high repetitiveness parts because it doesn't degrade easily. Probably some in your car.</p>

CC BY-SA 4.0
2022-04-19T04:22:03.273Z
2022-04-19T04:22:03.273Z
Kilisi
<p>Will build surfaces coated in PEI lose their qualities, such as adhesiveness, if left unused but removed from packaging for long periods of time?</p>

<build-plate><build-surface><pei>
Do unused PEI sheets degrade over time?
chobok
# Do unused PEI sheets degrade over time?

(Asked by: username_0 on 2022-04-19)

Will build surfaces coated in PEI lose their qualities, such as adhesiveness, if left unused but removed from packaging for long periods of time?

**Tags:** build-plate, build-surface, pei

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## 1 answers

### Answer by username_1 on 2022-04-19. Score: 4 | Accepted answer

The PEI will be fine. It's widely used in industrial high impact, high heat and high repetitiveness parts because it doesn't degrade easily. Probably some in your car.


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