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Lean Glass
Forming & IS machine

Parison

The intermediate hollow shape formed in the blank mould before being transferred to the blow mould for final shaping. Parison quality dictates final ware quality.

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This term appears across our hot-end audits, forming audits and Job Change Tool work. If you would like to discuss how it shows up in your plant, book a call — every engagement begins with an operational diagnostic, not a sales pitch.

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Related terms

Read next.

Blank mould
The first mould in the IS forming cycle — forms the parison from the gob via either pressing (PB) or settle/counter-blow (BB).
Blow mould
The second mould — receives the parison and final-blows it into the finished container shape.

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