How Does Heat-Shrink Polythene Sheeting Protect Goods?

Large, bulky or irregularly shaped goods can be difficult to protect with standard boxes and pallet wrap. Heat-shrink polythene sheeting provides a flexible covering that can be cut to size and shrunk more closely around suitable products.

When correctly applied, it can help protect goods from dust, dirt and light moisture during storage, handling and transport. It can be particularly useful for pallets, machinery, furniture and other items that are difficult to cover neatly.

Martins Mill Packaging supplies heat-shrink centrefold polythene sheeting in several sizes for bulky and awkwardly shaped loads.

What Is Heat-Shrink Polythene Sheeting?

Heat-shrink polythene is supplied centre-folded on a roll. When unfolded, it provides a wide sheet that can be placed around or over an item before controlled heat is applied.

The heat causes the film to contract, creating a closer-fitting outer covering. This differs from stretch film, which is pulled around a pallet under tension and does not normally require heat.

Heat-shrink sheeting may be used for:

• Bulky machinery and equipment
• Irregularly shaped products
• Furniture and large components
• Suitable palletised goods
• Products requiring temporary protection from warehouse dust and dirt

Protection From Dust and Light Moisture

A properly applied covering can help keep dust, dirt and light moisture away from the goods beneath it. This may be useful during warehouse storage, internal handling and suitable transport applications.

The level of protection depends on how the film is fitted and sealed. Open edges, punctures and gaps can allow water or dirt to reach the contents.

Heat-shrink sheeting should not automatically be treated as completely waterproof or suitable for prolonged outdoor exposure. Before using it outside, check the product specification, expected weather conditions and sensitivity of the goods.

A Closer Fit Around Awkward Products

One of the main advantages of heat-shrink film is its ability to form a closer covering around items that do not fit neatly inside standard packaging.

This can reduce loose material around corners and projections, producing a tidier package than an unsecured sheet or cover. It may also help prevent the covering from moving during routine handling.

Sharp corners and projecting components should be protected before the film is applied. The sheeting can still puncture if it is pulled across an exposed edge or heated too closely.

Does It Make a Pallet More Stable?

Heat-shrink sheeting can help contain suitably prepared goods, but it cannot make an unstable pallet safe.

Before wrapping, check that:

• The pallet is sound and suitable for the load
• The weight is distributed evenly
• Cartons and products are stacked securely
• Loose items have been contained
• Goods do not overhang the pallet unnecessarily
• Sharp edges have been covered

Some loads may also require strapping, edge protection or other packaging materials. The finished pallet must still be restrained appropriately inside any delivery vehicle.

Heat-Shrink Sheeting or Pallet Wrap?

The right product depends on the load and the packing process.

Standard stretch wrap is usually quicker for routine pallet containment and does not need heat. It may therefore be more practical for everyday warehouse and dispatch work.

Heat-shrink sheeting may be more suitable when:

• The product is bulky or irregularly shaped
• A closer all-round covering is required
• Standard stretch wrap is difficult to apply neatly
• The business already has suitable heat-shrinking equipment and procedures

The wider pallet wrap and film range includes hand and machine-applied stretch wrap as well as heat-shrink products for different packing requirements.

What About Heat-Shrink Pallet Covers?

A pre-formed pallet cover may be easier to use when goods are regularly packed on standard-sized pallets. The cover is placed over the load before heat is applied.

Centrefold sheeting offers more flexibility for machinery, furniture and products that do not fit a standard cover.

Martins Mill Packaging also supplies heat-shrinkable pallet covers in sizes designed for standard and Euro pallets.

Apply Heat Safely

Heat-shrink film requires suitable heat-application equipment. Because the process can involve high temperatures or a naked flame, it must be carried out in a controlled area by trained staff.

Before beginning:

• Follow the film and equipment manufacturers’ instructions
• Complete an appropriate fire and workplace risk assessment
• Remove flammable materials from the area
• Check that the goods do not contain flammable residues or heat-sensitive products
• Provide suitable ventilation
• Keep appropriate fire precautions available
• Avoid overheating or burning the film

Do not apply heat close to fuels, solvents, aerosols, gas cylinders or unknown chemical containers. A cold wrapping method may be safer where the contents or working environment make heat unsuitable.

Choosing the Right Sheeting

Before ordering, consider the dimensions and shape of the item, how it will be stored and whether heat can be applied safely.

Useful details to provide include:

• The product or pallet dimensions
• The shape and weight of the goods
• Whether the item has sharp edges
• The expected storage conditions
• The type of heat equipment available
• How frequently the sheeting will be used

The correct film size should provide enough material to cover and seal the load without creating unnecessary waste.

Flexible Protection for Bulky Goods

Heat-shrink polythene sheeting can provide a close-fitting protective covering for bulky, awkward and palletised goods. It is useful for reducing exposure to dust, dirt and light moisture, particularly where ordinary boxes or stretch wrap are difficult to use.

It should still be selected and applied carefully. Stable packing, safe heat application and suitable transport restraint remain essential.

Browse the available heat-shrink centrefold sheeting, or contact Martins Mill Packaging with the dimensions and intended use of your goods for help choosing a suitable size.