Your boat, equipment, or other asset is in pristine condition and ready to be covered and shipped. The surface is perfect, and the paint is immaculate. But when it arrives at its destination, removing the cover reveals scratch marks and surface etching that were not there when it left your facility. The most likely answer is that the protective covering used during transit was not up to the task, and it left your product damaged and unfit for sale. Your end customer is dissatisfied, the product gets rejected, and you are left footing the bill.
The good news is that this kind of damage is preventable. This guide covers the common causes of etching and scratching, the covering materials that put delicate surfaces at risk, what to look for in scratch protection shrink wrap, and the installation practices that keep finishes flawless through transportation and storage.
Common Causes of Surface Scratching and Etching
Shipping and storing assets with delicate surfaces requires a protective cover designed to provide a gentle yet secure touch. All too often, surfaces get damaged because the cover was installed improperly or was the wrong material choice for the product.
| Cause | How It Damages the Surface |
| Chafing | A loose or shifting cover rubs against the finish as the load moves during transit |
| Abrasive material | Some plastic film has a coarse texture that scratches paint on contact |
| Trapped debris | Dust, dirt, and grit caught under the cover grind against the surface |
| Poor fit | Gaps let in wind, moisture, and road debris over a long distance |
| Trapped moisture | Condensation held against a metal surface leads to etching and corrosion |
Chafing is the biggest risk. As movement occurs during transit, covers that are not properly fitted shift and create friction between the cover material and the surface of the asset. The cover material itself can cause unwanted scratching when movement occurs, and the effects get worse when dust, dirt, and other abrasive elements work their way underneath the cover.
Materials That Put Delicate Surfaces at Risk
The first step in preventing scratches and etching is choosing the right covering material and avoiding the options that are likely to cause problems on the road.
Straight Shrink Wrap
Many manufacturers rely on straight shrink wrap made of standard low-density polyethylene. This shrink film is a popular choice because it is inexpensive and widely available. Shrink wrapping may be acceptable for some short-term applications, but it is not recommended for transit, especially on items with delicate surfaces.
Standard industrial shrink wrap can be thought of as having the texture of fine-grade sandpaper. When it is not installed correctly, that texture causes a great deal of scratching as the film moves against paint during transportation. A material that works fine as a weather barrier in a storage unit can still do real damage once vibration and wind load enter the picture.
Stretch Wrap and Pallet Wrap
Stretch wrap and pallet wrap serve a real purpose for boxed and palletized goods, and an industrial plastic wrap roll is a cost-effective solution for keeping cartons together. These materials were never designed to touch a finished painted surface, though. They cling tightly, trap moisture against the product, and offer no cushioning between the plastic film and the paint. Keep them on the pallet, not on the finish.
Non-Shrink Travel Covers and Canvas Covers
Other common choices that turn into a headache are non-shrink travel covers and canvas covers. These options are not usually custom fit, which keeps them from getting tight enough and leaves space between the product and the cover. These materials are also heavier, which causes more movement and therefore more scratching during transit. Canvas also absorbs and holds moisture, which adds etching risk on top of abrasion.
What to Look for in Scratch Protection Shrink Wrap
Now that you know what to avoid, how do you recognize the right material? A few indicators make the search much easier.
- Tested for finish abrasion: Look for a surface protection film designed for Class A automotive finishes. Transhield tests every material for paint and finish abrasion using a modified ASTM D-2486 testing method.
- A soft interior layer: Transhield covers use a three-layer construction: a UV-resistant polyethylene outer layer, a hot melt adhesive system, and a soft, non-woven inner layer that rests gently against the finish.
- Moisture management: The non-woven interior wicks moisture away from the surface, preventing the condensation that leads to etching, mold, and mildew.
- A shrinkable, custom fit: Shrinkable fabric heat-shrinks to the shape of the asset, eliminating the loose material that causes chafing and standing up to wind and road debris.
- Coverage matched to your product: A cover engineered for your specific application will always outperform a generic sheet of protective plastic film.
For assets that will sit in storage after transit, the right cover keeps working. Leaving a well-fitted cover in place through the storage period maintains surface protection and keeps dust and potential damage away until the product is ready for use.
Honing Your Installation Process
Even the best cover will not perform without correct installation. Once you have the right material, build a repeatable process around it.
- Clean all surfaces of the unit before installation begins. The surface should be clear of debris, dirt, and dust that could get trapped beneath the cover and cause abrasion.
- Check the cover itself for cleanliness. Any grit the cover material has picked up will transfer to the surface of the unit during installation.
- Perform the installation the same way each time so it becomes second nature, and your results stay consistent across every shipment.
- Apply the cover as tightly as possible, then retighten any loosened areas after it is on.
- Secure the cover well around the bottom edges to minimize gaps between the unit and the cover. This prevents wind tunneling and debris intrusion.
- Whenever possible, heat-shrink the cover with a heat gun or similar heat tool to reach maximum tightness.
Most Transhield covers can be installed by one or two people, so a small team can learn the process quickly and repeat it easily on every unit that leaves the dock.
Worry-Free Shipping and Storage
Etching and scratching are avoidable during shipping and storage. It all comes down to the type of protective covering you use and how well you use it. Choose a material tested for delicate finishes, fit it tightly to the asset, and follow a consistent installation process on every unit.
Transhield has spent over 30 years engineering custom protective covers for manufacturers, distributors, and government customers who cannot afford to deliver damaged product. Once you have found the right cover for your protection needs and honed your installation process, damaged surfaces will stop showing up at delivery. Ready to protect your finishes? Contact us today to discuss a custom cover built for your equipment.