---
title: "Zip Lock Bags Explained: Sizes, Thickness (Microns) and Best Uses Zip lock bags  — by Plastpack  on Knowasiak"
description: "Zip Lock Bags Explained: Sizes, Thickness (Microns) and Best Uses  Zip lock bags are a practical packaging option for storing, organising and protecting small products, but choosing the right size a"
url: "https://knowasiak.com/thread/30460"
type: "post"
schema: "https://schema.org/SocialMediaPosting"
keywords:
  - "post"
is_authoritative: true
author: "Plastpack "
author_url: "https://knowasiak.com/plastpack"
username: "plastpack"
published: "2026-08-26T03:05:28-07:00"
likes: 0
replies: 0
reposts: 0
views: 267
last_updated: "2026-08-26T03:05:28-07:00"
generator: "knowasiak-markdown-mirror/1.1"
---
# Post by Plastpack  (@plastpack)

Zip Lock Bags Explained: Sizes, Thickness (Microns) and Best Uses

Zip lock bags are a practical packaging option for storing, organising and protecting small products, but choosing the right size and thickness is important for reliable performance. Sizes are generally measured as opening x depth in millimetres, so businesses should measure the product at its widest and longest points before selecting a bag. For light items, samples, retail products and general storage, 50 micron bags are usually suitable, while 75 micron heavy-duty bags are better for sharp, heavy or frequently handled items because the thicker film helps resist splitting. Most zip lock bags are made from clear LDPE, allowing contents to remain visible without opening the bag, while write-on panel options make labelling easier for stock, specimens or batch details. Food applications require bags made from appropriate food-grade film rather than assuming any zip lock bag is suitable for food contact. Businesses can also order zip lock bags in bulk or request custom sizes, thicknesses, seals and printing to suit specific packaging requirements.

[Zip Lock Bags Explained: Sizes, Thickness (Microns) and Best Uses](https://www.plasticbags.com.au/zip-lock-bags-explained-sizes-thickness/)

![Attached Image](https://knowasiak.com/upload/images/2026/08/EGgsamOluSsqJvhlyKQy_26_9d9213333e41f66c3252ed1ffd62fa84_image_original.jpg)

## Metadata

- **Author**: Plastpack  (@plastpack)
- **Published**: 2026-08-26T03:05:28-07:00
- **Likes**: 0
- **Replies**: 0
- **Reposts**: 0
- **Views**: 267
- **Canonical URL**: https://knowasiak.com/thread/30460

---

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**Author**: Plastpack  (@plastpack) on Knowasiak

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