The best performing shrink wrapping of a watercraft is determined by the environment it is stored in and the amount of protection desired. It is important to take weather conditions into consideration. For instance, ice and snow load strengths will factor into shrink wrapping a boat that is to be stored outside, while UV protection will be more important for boats stored inside. Knowing the climate of where a boat is being stored will help determine the mil thickness and the type of shrink wrap to be used. It will also ensure that the boat is adequately protected and ready to hit the water come spring.
Preparation is essential prior to shrink wrapping a boat. Remove all antennas, radar, outriggers, and other accessories that may hinder the wrapping process. Any sharp edges, such as cleats, should be padded to prevent puncturing the shrink wrap. The boat should be washed and dried thoroughly to remove any dirt or debris that could create moisture between the wrap and the hull. Carefully lifting the boat off the trailer with slings or a forklift will provide the necessary clearance to shrink wrap the bottom of the hull.
Once the boat is adequately prepared, cover the boat with the shrink wrap. Utilize shrink wrap specifically designed for marine applications to ensure durability and protection against the elements. Initially, cover the boat loosely, leaving plenty of excess material. Using a heat gun, gradually shrink the wrap, paying careful attention to contours and angles. Apply heat evenly to prevent tearing or distorting the wrap. Seal any seams with shrink wrap tape to create a weather-tight barrier. Finally, cut off any excess material and secure the wrap around the base of the boat with a banding system, ensuring a snug and secure fit throughout the storage season.
Choosing the Right Shrink Wrap
Selecting the appropriate shrink wrap for your boat is crucial to protect it effectively from the elements. Consider these factors when choosing:
Thickness and Strength
Shrink wrap thickness is measured in mils. thicker wraps provide more protection and are more durable. Consider the following guidelines:
| Boat Size | Shrink Wrap Thickness (mils) |
|---|---|
| Up to 20 feet | 6 |
| 20-30 feet | 7 |
| 30-40 feet | 8 |
| Over 40 feet | 9 or higher |
Fire Retardancy
Look for shrink wrap with a fire retardant treatment to minimize the risk of fire damage in case of an accident.
UV Resistance
UV resistance prevents the shrink wrap from deteriorating due to sun exposure. This is especially important in regions with high UV levels.
Permeability
Permeability refers to the ability of moisture to escape from the shrink wrap. Choose a wrap with low permeability to prevent moisture accumulation inside the boat.
Color and Finish
Shrink wrap is available in various colors and finishes. Choose a color that complements your boat and a finish that is compatible with the boating environment (e.g., anti-static or anti-fog).
Securely Fastening the Wrap
Once you’ve covered the boat in plastic wrap, it’s time to secure it tightly to prevent it from blowing away or tearing. Here’s how to do it:
1. Use a Heat Gun to Shrink the Wrap
Use a heat gun to shrink the plastic wrap around the boat’s contours. Hold the heat gun about 6-8 inches away from the wrap and move it slowly back and forth, applying heat evenly. The wrap will shrink and become tight as it cools.
2. Secure the Wrap with Straps
Use heavy-duty straps to secure the wrap in place. Wrap the straps around the boat’s hull, over the wrap, and tighten them to prevent the wrap from loosening. You may need multiple straps depending on the size of the boat.
3. Use Tape to Seal the Seams
Once the wrap is secure, use waterproof tape to seal any seams or gaps where water could enter. Apply the tape generously to create a waterproof seal. You can also use caulk or sealant for added protection.
4. Reinforce High-Stress Areas
Pay special attention to securing high-stress areas, such as corners, edges, and areas around hatches. Use extra straps or tape to reinforce these areas to prevent tearing or water penetration.
5. Install Vents
Install vents on the wrap to allow air to circulate and prevent condensation from building up. Vents can be purchased at marine supply stores or made using a hole saw and a piece of pipe.
6. Cover any Openings
Cover any open hatches, vents, or other openings on the boat with plastic wrap and tape them securely to prevent water from entering.
7. Trim Excess Wrap
Once the wrap is secure and sealed, trim any excess wrap around the edges of the boat. Use a sharp knife or scissors to cut the wrap cleanly and avoid creating any gaps or tears.
| Fastening Method | Description |
|---|---|
| Heat Gun | Shrinks the wrap tightly around the boat’s contours. |
| Straps | Secures the wrap in place and prevents it from loosening. |
| Tape | Seals seams and gaps to create a waterproof barrier. |
| Reinforcing | Additional protection for high-stress areas, such as corners and edges. |
| Vents | Allows air circulation and prevents condensation. |
| Covering Openings | Prevents water from entering through hatches or vents. |
Removing the Boat Cover
To properly shrink wrap a boat, it’s essential to begin by removing the boat cover. This step should be approached with care to avoid damaging either the cover or the boat.
1. Start by unbuckling or unhooking the boat cover from the attachment points on the boat.
2. Carefully gather the cover in your hands, ensuring that you don’t drag it excessively on the boat’s surface.
3. Fold the cover in on itself, making it as compact as possible for storage.
4. Use a dry, lint-free cloth to wipe down any exposed surfaces of the boat that will come into contact with the shrink wrap.
5. Allow the boat to dry completely before proceeding to apply the shrink wrap.
6. Ensure that the boat is level and well-supported to prevent movement during the wrapping process.
7. Measure the length and height of the boat to determine the appropriate size of shrink wrap to purchase.
8. Mark the boat’s hull lines with masking tape to guide the placement of the shrink wrap.
9. Position a heat gun or propane torch at a safe distance from the shrink wrap (approximately 6-8 inches) and move it slowly and evenly over the surface of the wrap. The heat will cause the plastic material to shrink and conform to the shape of the boat. Be cautious not to overheat any one area for an extended period, as this can damage the wrap. Once the wrap is fully shrunk, trim any excess material around the edges of the boat.
Materials Needed
Before you begin, gather all the necessary materials, including:
- Shrink wrap
- Heat gun
- Scissors
- Tape
- Measuring tape
- Ladder
- Safety gloves
Troubleshooting Common Problems
1. Wrinkles and Creases
If you notice wrinkles or creases in the shrink wrap, use a heat gun to gently heat the affected area. This will soften the plastic and allow it to shrink more evenly. Avoid overheating the shrink wrap, as this can damage it.
2. Holes or Tears
If a hole or tear occurs, use a patch to repair it. Cut a piece of shrink wrap slightly larger than the hole and tape it over the affected area. Heat the patch with a heat gun until it adheres to the shrink wrap.
3. Loose or Sagging Wrap
If the shrink wrap becomes loose or sagging, use a heat gun to tighten it. Focus the heat on the areas where the shrink wrap is loose. Avoid overheating the shrink wrap, as this can damage it.
4. Difficulty Shrinking
If you have difficulty shrinking the plastic, check the temperature of the heat gun. It may be set too low. Increase the temperature and try again. Additionally, ensure that the heat gun is held close to the shrink wrap for maximum efficiency.
5. Overheating
Overheating can damage the shrink wrap. Avoid holding the heat gun too close to the plastic for an extended period. If you notice the material bubbling or melting, move the heat gun away immediately.
6. Uneven Shrinkage
Uneven shrinkage can occur if the shrink wrap is heated unevenly. Pay attention to the areas where the shrink wrap is shrinking more quickly and reduce the heat in those areas. Heat the wrap gradually, working from the center outwards.
7. Air Pockets and Bubbles
Air pockets and bubbles can get trapped under the shrink wrap. Use a pin or needle to pierce the bubbles and release the air. Be careful not to puncture the shrink wrap itself.
8. Fogging
Fogging can occur if moisture gets trapped inside the shrink wrap. Ensure that the shrink wrap is completely dry before applying it to the boat. Additionally, allow for ventilation by leaving a few small holes in the wrap.
9. Condensation
Condensation can form on the inside of the shrink wrap if the temperature inside the boat changes drastically. Avoid sudden temperature changes by opening or closing vents gradually.
10. Damage to the Boat
Extreme heat from the heat gun can damage the boat’s gel coat or other materials. Be cautious when using the heat gun near sensitive areas. Start with a low temperature and gradually increase it until the shrink wrap shrinks sufficiently.
How to Shrink Wrap a Boat
Shrink wrapping a boat is a great way to protect it from the elements during the off-season, storage, and transportation. It can also help to keep your boat clean and free of debris. Here are the steps on how to shrink wrap a boat:
- Clean your boat thoroughly. This includes washing the hull, deck, and all other surfaces. Any dirt or debris can cause the shrink wrap to tear.
- Cover any sharp edges with duct tape. This will help to prevent the shrink wrap from tearing.
- Place the shrink wrap over the boat. Start at the bow and work your way to the stern. Make sure to pull the shrink wrap tight and smooth out any wrinkles.
- Use a heat gun to shrink the wrap. Start at the bottom of the boat and work your way up. Hold the heat gun about 6 inches away from the shrink wrap and move it back and forth until the wrap is tight.
- Trim any excess shrink wrap. Use a sharp knife to cut the wrap around the edges of the boat. Be careful not to cut the wrap too close to the hull.
- Apply a sealant to the edges of the shrink wrap. This will help to keep the wrap in place and prevent water from getting inside.
People Also Ask
What is the best type of shrink wrap for boats?
There are two main types of shrink wrap for boats: polyethylene and polyolefin. Polyethylene is the most common type of shrink wrap and is less expensive than polyolefin. However, polyolefin is more durable and UV-resistant than polyethylene. If you plan on storing your boat for a long period of time, polyolefin is the better choice.
How long will shrink wrap last?
Shrink wrap will typically last for two to three years. However, the lifespan of shrink wrap can be shortened by exposure to UV rays and extreme weather conditions. If you live in an area with harsh weather conditions, you may need to replace your shrink wrap more often.
Can I shrink wrap my boat myself?
Yes, you can shrink wrap your boat yourself. However, it is important to follow the steps carefully to ensure a proper seal. If you are not comfortable shrink wrapping your boat yourself, you can hire a professional to do it for you.
