Heavy duty polythene bags

Heavy-duty polythene bags

Our thickest and most durable offering in polythene bags, designed to handle demanding application whilst maintaining excellent clarity for displaying contents. Heavy-duty and extra heavy-duty options available for industrial and commercial use.

Produced from high-quality, non-toxic LDPE (low density polyethylene). These bags contain 30% recycled material, providing a sustainable yet robust packaging solution.

Designed with three sealed sides and open top, they are easy to fill and can sealed securely with a heat sealer. This creates a near-impenetrable closure that reliably protects against contamination from dirt, dust, or moisture, making them ideal for storing or mailing objects.

Whether you need them for storage, shipping, or retail purposes, these heavy-duty polythene bags are built to provide exceptional strength, clarity, and protection.

These bags are food safe.

Heavy-duty bags

360-gauge thick (90 micron) bags offering exceptional strength and tear resistance, making them ideal for heavy and sharp items.

Perfect for DIY stores, ironmongers, garden centres and builders merchants, with the larger varieties suiting bulk shipments and substantial materials.

Used in conjunction with a heat sealer, the contents would be securely shielded from contaminants to keep the goods in optimal condition in terms of hygiene and sanitation.

Great for storing and transporting:

• Metal parts, tools and machine components requiring strong, tear-resistant packaging
• Nails, screws or small hardware items that may puncture light-duty bags
• Books, electronics or heavy clothing during transit
• Seeds, compost or plant materials

They can also be used as protective covers to shield sensitive items from dust or moisture during storage and transit.

Extra heavy-duty bags:

500-gauge thick (125 micron) bags offering an incredible degree of toughness.

Extremely strong, clear plastic bags are ideal for storing, transporting or protecting heavier, bulkier or sharper goods that may otherwise split less robust, thinner bags.

Great for satisfying warehouse needs, office goods or carrying engineering parts. The significantly superior strength can accommodate far more substantial items.

Great for storing and transporting:

• Construction materials, such as gravel, sand, cement, or other dense materials
• Sharp or heavy metal components, machinery parts, or industrial tools
• Valuable and fragile items like electronics, mechanical parts or equipment
• Car parts, engines or other mechanical components
• Heavy or over-sized products to protect against moisture, dirt and damage in warehouse settings

Poly bag sizes

Our heavy-duty polythene bags can be supplied in very large sizes up to 900 x 1200mm in addition to small 100 x 150mm dimensions. Meanwhile, our extra heavy-duty bags are available in in sizes ranging from small 102 x 152mm pouches to very large 914 x 1,219mm sacks.

The product table displays the range of dimensions in the order of width (opening) x length, allowing for a manufacturing tolerance of +/- 5%. To adjust towards this factor, it is sometimes worth ordering up a size to ensure the best fit for your intended product. This comprehensive range is designed to supply a suitable solution for most applications.

At Kite, we also offer standard polythene bags in light and medium duty polythene bags for a variety of product shapes and sizes.