Knowledge Centre

Technical Guides & Material Specifications

In-depth guidance on industrial packaging, roofing systems and geomembranes — material grades, load ratings, certifications and the real drivers behind cost. Written by the engineering team at Shish Industries for specifiers, buyers and project managers.

Written in-house, not outsourced Specification-level detail New guides added regularly

Polythene Sheet Weight per Sq M: Micron to GSM Chart

Shish Industries Limited

Published on: 14/11/2026

Polythene sheet weight per square metre by micron, with a gauge and GSM chart, the formula, roll weights, and why woven pond liners are sold by GSM.

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