300G - 400G Polythene Bags
Heavy-duty clear poly bags for reliable protection and presentation. These heavy-gauge clear polythene bags are designed for everyday packing, storage and dispatch where a tougher film is preferred. The clear finish helps you identify contents quickly, while the heavier thickness provides added resistance to tearing and punctures compared with standard light-duty poly bags.
Key Features
Heavy-gauge film (approx. 400 gauge / ~102 micron):
A thicker polythene film that offers improved durability for handling, packing and transit. Industry conversion charts commonly reference 400 gauge as approximately 100–102 microns, helping you compare thickness across suppliers.
Clear for easy identification:
The transparent material makes it simple to check contents at a glance—useful for picking, packing, stock control and customer presentation.
Versatile protection:
Ideal for keeping items clean and protected from dust and light moisture during storage and distribution.
Simple, practical format:
A straightforward poly bag style that suits a wide range of products and packing workflows.
- Heavy-duty clear polythene bag for tougher packing tasks
- Approx. 400 gauge / ~102 micron thickness for added strength
- Clear film supports fast identification and neat presentation
- Useful for storage, packing and dispatch across many industries
Typical Uses
- Packaging small parts, components and accessories
- Protecting items from dust during storage
- Organising stock in warehouses, workshops and retail backrooms
- Bagging products for dispatch and fulfilment
- Keeping sets/kits together (e.g., fixings, fittings, spares)
Heavy Clear Poly Bags — Full Product Guide
When you need a clear bag that feels more substantial than standard light-duty polythene, heavy-gauge poly bags are a dependable choice. They’re widely used in packing environments because they combine visibility with practical protection, helping streamline picking and packing while keeping goods tidy and contained.
How It Works
Place the product inside the bag to keep it contained and protected. The clear film allows quick visual checks without opening the bag, which can reduce handling time in busy packing areas. The heavier film is intended to better withstand routine handling compared with thinner alternatives.
Materials and Construction
These bags are made from clear polythene film. The key differentiator is the film thickness, commonly described in gauge and sometimes also shown in microns. For reference, packaging conversion charts commonly indicate that 400 gauge is approximately 100–102 microns, which helps you compare “gauge” listings with “micron” listings across different suppliers.
Choosing the Right Thickness (Gauge vs Micron)
Thickness is one of the most important factors when selecting a poly bag:
- Gauge is a traditional way of describing film thickness in packaging.
- Micron (µm) is a metric measurement of thickness.
- As a general reference point, 400 gauge ≈ 100–102 µm.
If you’re comparing products from different suppliers, checking both gauge and micron can help ensure you’re ordering the durability level you expect.
Visibility and Presentation
Clear poly bags are popular because they keep products visible while still providing a protective barrier. This is useful for:
- Retail presentation where customers need to see the item
- Warehouse picking where staff need to identify contents quickly
- Quality checks where you want to confirm the correct item without opening packaging
Protection in Storage and Transit
While a poly bag is not a rigid protective pack, it can be very effective for everyday protection against:
- Dust and general dirt
- Scuffs from contact with other items
- Light moisture exposure (e.g., short-term handling and storage conditions)
For heavier or sharper items, the heavier film helps reduce the risk of punctures compared with thinner bags, though suitability will depend on the product’s shape and edges.
Ideal Applications and Use Cases
Heavy clear poly bags are commonly used across many sectors, including:
- Warehousing & fulfilment: bagging items for dispatch, organising pick faces, separating SKUs
- Manufacturing & engineering: packing components, fixings, spares and assemblies
- Retail & e-commerce: presenting products neatly while keeping them protected
- Workshops & trade counters: keeping small parts grouped and easy to identify
Floor Type Compatibility
This product is packaging rather than a flooring material, so floor compatibility does not apply. However, in packing areas it can be used in typical warehouse and workshop environments as part of standard packing and storage processes.
Health and Safety
- Keep packaging away from children and vulnerable persons—plastic bags can present a suffocation hazard.
- In busy packing areas, keep loose bags controlled to reduce slip/trip risks.
- If packing sharp-edged items, consider additional protection (e.g., wrapping) to reduce puncture risk.
Maintenance, Cleaning and Care
Poly bags are typically used as a consumable packaging item. Store unused bags in a clean, dry area away from excessive heat and direct sunlight to help maintain film performance and clarity.
Case Study (Typical Workflow Example)
Scenario: A small parts distributor needs to speed up order picking while keeping items clean and separated.
Approach: Items are bagged by SKU in clear heavy-gauge poly bags. The clear film allows quick visual confirmation during picking and packing, while the heavier thickness helps the bags hold up during handling and dispatch.
Result: Faster identification, tidier packing benches, and reduced rework from mixed or contaminated parts.
Who Is It For?
- Businesses that want a clear bag with a tougher feel than standard light-duty polythene
- Packers and fulfilment teams who need quick identification of contents
- Workshops and warehouses that need simple, reliable containment for parts and products
Colours / Features Available
This listing is for clear heavy polythene bags. If you need tinted, printed, resealable, or other specialist formats, check the wider range of polythene bag options available.
Sizes Available
This product page may represent multiple size/pack options within the same heavy clear poly bag range. Please select the required option from the size/variant choices shown on the page.
Reference thickness note: Packaging conversion charts commonly show 400 gauge ≈ 100–102 microns. This helps align gauge-based descriptions with metric micron thickness when comparing products across suppliers.