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Barrier layer — Edexcel GCSE Design and Technology Definition

Home
Design and Technology
Key terms
Barrier layer

GCSE Design and Technology · key term

Barrier layer

Definition

A layer that restricts the passage of substances, such as moisture or oxygen, or blocks light, helping to protect packaged contents.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Design and Technology · 1DT0

Specification 3.2.3 · Paper 1

Revise: Packaging Laminates

Edexcel Design and Technology past papers

Related key terms

Aluminium foil
Packaging laminate
Paperboard
Polyethylene

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