300G - 400G Polythene Bags
Heavy-Duty Clear Poly Bags (B/W) — Product Overview
These heavy-duty clear polythene bags are designed for protecting, storing and handling larger items where a stronger film is required. Made from thick polyethylene film (102 micron), they provide a robust barrier against dust, dirt and light moisture during storage and transit. The clear finish helps with quick identification of contents without opening the bag, supporting efficient picking, packing and stock control.
This listing covers a heavy-gauge bag format commonly used across warehouses, manufacturing, retail back-of-house and general industrial environments. As this is a configurable product page, the exact pack quantity and pricing may vary by option selected, but the core specification remains focused on a heavy-duty clear poly bag in the stated size family and thickness class.
Key Features
Heavy-gauge film (102 micron)
A thick polythene construction helps resist tearing and punctures compared with lighter bags, making it suitable for heavier or more awkward items and for applications where bags may be handled repeatedly.
Clear for fast identification
The transparent film allows contents to be checked at a glance, reducing handling time and helping prevent picking errors in busy packing areas.
Large-format capacity
The generous bag dimensions are suited to bulky products, grouped items, liners and protective over-bagging where smaller bags are impractical.
Protective barrier for storage and transit
Helps shield products from dust and general contamination, supporting cleaner storage and presentation.
Versatile packaging format
Suitable for a wide range of sectors and workflows, from warehouse packing benches to production lines and maintenance stores.
Key Features (Bullet Summary)
- Heavy-duty polythene bag with thick 102 micron film
- Clear material for easy content visibility
- Large size format for bulky items and protective over-bagging
- Helps protect against dust and light moisture during storage and handling
- Useful for warehousing, manufacturing, retail stockrooms and general industrial use
Typical Uses
- Protective over-bagging for boxed goods, components or assemblies
- Storage bags for bulky items, soft goods, textiles or foam products
- Keeping parts and products clean in warehouses, workshops and maintenance areas
- Grouping multiple items together for kitting and dispatch
- Temporary protection during internal transport between departments
Heavy-Duty Clear Poly Bags (B/W) — Full Product Guide Introduction
When you need a simple, cost-effective way to protect products without adding unnecessary bulk, heavy-duty polythene bags are a dependable choice. This product is a thick, clear poly bag designed to provide practical protection for larger items and to support efficient packing and storage workflows. The heavy film thickness (102 micron) is a key differentiator: it is intended for applications where lighter bags may split, stretch excessively or puncture during handling.
Because this is a configurable product page, it may represent multiple pack sizes or purchasing options. The guidance below focuses on how heavy-gauge clear poly bags are typically selected and used, so you can choose the most suitable option for your operation.
How It Works
Polythene bags provide a flexible protective layer around products. The bag is placed over or around the item, creating a barrier that helps keep out dust and general contamination. In many packing environments, clear bags also function as a visibility aid: staff can confirm the contents, check labels and verify quantities without opening the packaging.
For heavier items or items with corners and edges, film thickness becomes important. A heavy-gauge bag is designed to better withstand the stresses of lifting, sliding, stacking and general handling.
Materials and Construction
These bags are made from polyethylene film. Polyethylene is widely used in packaging because it is lightweight, flexible and provides a practical moisture barrier for everyday storage and distribution. The film thickness for this product is specified as 102 micron, placing it in a heavy-duty category suitable for more demanding applications.
Thickness is often one of the most useful ways to compare poly bags. A thicker film generally offers improved puncture resistance and tear resistance, which can reduce waste and rework in packing operations.
Understanding the Specification (Size & Thickness)
Bag size
This product is listed with dimensions in both imperial and metric formats. The size indicates the approximate usable width and length of the bag. When selecting a bag size, consider not only the flat dimensions of the item but also its depth or bulk. Bulky items may require additional allowance so the bag can fit comfortably without overstressing seams or film.
Film thickness (102 micron)
Micron (μ) is a common unit for plastic film thickness. A 102 micron bag is a heavy-gauge option intended for tougher handling conditions. If you are currently using lighter bags and experiencing splits, punctures or excessive stretching, moving to a heavier micron rating is often an effective improvement.
“400g” and “B/W” in the title
Some suppliers use additional shorthand in product titles to indicate grade or category. Where present, these terms help differentiate heavy-duty bags from lighter alternatives. If you need confirmation of any specific meaning for your internal specification, compare against your existing purchasing descriptions or contact your account manager for clarification.
Floor Type Compatibility
As a packaging consumable, poly bags are not floor-specific. However, they are commonly used in environments with concrete warehouse floors, mezzanines, packing benches and production areas. If bags are frequently dragged or slid across rough surfaces, a heavier film can help reduce punctures and tearing.
Health and Safety
As with all plastic bags and film products, safe handling and storage practices are important:
- Keep away from children and do not allow plastic bags to be used as toys.
- Avoid suffocation hazards by storing bags responsibly and using appropriate warnings where required.
- Use correct manual handling techniques when bagging heavy items; the bag is a protective layer, not a lifting aid.
- Keep away from heat sources and open flames, as plastic film can melt.
If you are using bags in a regulated environment (food handling, medical, cleanroom, etc.), ensure the chosen bag specification matches your compliance requirements.
Ideal Applications and Use Cases
Heavy-duty clear poly bags are a practical choice when you need visibility and protection combined with stronger film performance. Common use cases include:
- Warehousing & distribution: protecting goods on shelves, in cages, or during picking and dispatch.
- Manufacturing: keeping components clean between process steps or during storage.
- Retail stockrooms: protecting seasonal stock, soft goods or boxed items.
- Maintenance & facilities: storing bulky spares, covers, textiles or consumables.
- Kitting and assembly: grouping multiple items together for a single job or order.
Maintenance, Cleaning and Care
Poly bags are typically single-use or limited re-use depending on your process. To get the best performance:
- Store bags in a clean, dry area to prevent contamination before use.
- Avoid sharp edges on products where possible; consider adding corner protection for particularly sharp items.
- Do not overload the bag beyond what the film can comfortably accommodate; excessive stretching can weaken the film.
- Dispose of responsibly in line with local recycling and waste guidance for polyethylene film.
Case Study (Example Workflow)
Scenario: A warehouse dispatch team needs to protect large items from dust and scuffs while orders wait for carrier collection.
Approach: Items are placed into heavy-duty clear poly bags at the packing bench. The clear film allows staff to confirm the correct SKU and check labels without opening the packaging. The heavier film reduces the likelihood of tearing when items are moved onto pallets or into roll cages.
Outcome: Cleaner presentation on arrival, fewer re-bags due to damage, and faster visual checks during staging.
Who is it for?
- Businesses packing or storing bulky items that need a stronger bag than standard light-duty polythene
- Operations that benefit from clear visibility for stock control and picking accuracy
- Warehouses and production sites looking to reduce bag splits and packaging waste
- Teams that need a simple protective layer without switching to rigid packaging
Colours / Features Available
This product is supplied as a clear heavy-duty poly bag. The listing title may include additional shorthand (such as “B/W”) used to distinguish variants or categories. If you require a specific colour, tint, print, or closure style, check the available options on the product page or browse related bag categories.
Sizes Available
This product page represents a large-format heavy-duty bag size family. As a configurable listing, it may include different pack quantities and purchasing options. If you need a different size, thickness, or a bespoke solution, consider selecting an alternative size within the same heavy-duty range or contacting the supplier for guidance.
Tip: When choosing a bag size, allow extra room for product depth and for easy loading. If your item has sharp corners or protrusions, consider stepping up in size or adding protective wrapping to reduce puncture risk.