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November 2020

Moisture Control

By November 23, 2020 800 Views No comments

Moisture Control Tools

Moisture inside a shrink wrapped object is never a good thing but it can be difficult to avoid. Once the impermeable layer of shrink wrap is applied there will still be a difference in temperature which will cause condensation, and sweat inside. Moisture can cause mold, mildew, and rust but there are two extremely useful tools that can control the buildup of moisture, Vents, and Desiccant Bags.


Vents let air come and go while still controlling whether things rust or corrode. Vents hold down moisture under the cover and come in three main styles: rectangle, round, and stealth.

  • Rectangle vents are weather tight with a self-adhesive application. This vent has twp pieces and once a rectangular hole is cut in the shrink wrap simply place the adhesive side on a clean flat surface. The dome-shaped cover is then added to allow air in and out. Rectangle vents are best used on fully vertical surfaces.
  • Round vents are very similar to rectangle vents in the application process with a self-adhesive back that sticks to the shrink wrap and a dome cover that is placed on top. Pro Tip: make sure the cut/hole in the shrink wrap is smaller than the size of the vent hole. The vent must adhere completely to the shrink wrap to ensure a sturdy vent that will last all season.
  • Stealth vents are self-piercing and do not require an additional knife to cut an opening in the shrink wrap. These vents have a paper clip top that snaps on the outer side of the shrink wrap. The cerated edge goes underneath the shrink wrap and two notches on the edge that need to be pushed underneath the shrink wrap to make sure it gets around and into the notch. If using stealth vents for an extended period of time they may start to fail so Mr. Shrinkwrap’s pro tip is to use tape to secure the vent. Adding tape to secure the vent keeps it in place throughout the season. These vents are popular with speed boats, runabouts and anywhere there is a smaller-sized t-post or 45-degree angles.

Desiccant Bags

Have you ever used or heard of “Damp-rid buckets”?

These buckets are placed inside shrink wrapped assets, typically boat bathrooms, closed cabins, etc. to absorb moisture while the asset is wrapped. These commonly used Damp-rid Buckets are very messy and the ingredients used turn to a goo-like substance over time. Luckily Mr. Shrinkwrap found a much better option, desiccant bags.

What are Desiccant Bags?

Desiccant bags are a large version of the small bags you might find in a supplement bottle or electronics to absorb moisture. These bags are simply placed in the head and cabin area. Typically for a boat under 30ft 7-10 bags are used in the interior areas or 1 bag per 3x3 cubic ft. These bags will keep the boat dry for up to six months. Mr. Shrinkwrap recommends varying the levels where bags are placed to ensure all moisture is properly absorbed. It is also important to consider the weather, climate, and other factors when determining how many bags should be used. Our team of experts are here to assist with deciding how many desiccant bags should be used on your next project, 1-866-824-3723.

Before your next shrink wrapping project make sure you have an appropriate supply of moisture controlling tools. Mr. Shrinkwrap has everything you need to successfully shrink wrap just about anything!

Shrink Wrap Strapping Tool

By November 16, 2020 845 Views No comments

Strap Tensioning Tool

Strapping Tools are an essential element to the shrink wrapping process

Many shrink wrap projects can benefit from adding straps but many people are not applying straps with a tensioning tool. Some projects that benefit from straps include securing a pallet, preparing loads for transit, and of course boat wrapping.

Many DIYers use trucker knots to secure straps but we recommend using a tensioning tool to ensure straps are mechanically tight.

If you are planning on wrapping your boat this winter be sure to add ½ inch strapping, ¾ inch strapping, buckles, and a strap tensioning tool to your cart. Many people don’t realize the importance of using different sized strapping for different applications. Use the ¾ inch strapping for the center strap and use the ½ inch strapping for parts of the structure on the top and for belly bands. At Mr. Shrinkwrap we offer smaller roles at affordable prices so you won’t have excess strapping but you can complete your job with a professional finish.

Why use a strap tensioning tools?

For boat wrapping applications making the center strap tight is very important and to do that without a tensioning tool and self-locking metal buckles is virtually impossible. It is also important to secure belly bands to avoid cresting of the shrink wrap.

What is cresting?

In short, cresting is when the shrink wrap puts tension on the strap creating an arch or crest. If you don’t use the tensioning tool the strap still has enough slack in it and it causes the shrink of the shrink wrap to pull up the wrap.

Cresting is bad because it creates spots on the boat that are exposed to sunlight which may lead to uneven weathering. Mr. Shrinkwrap recommends that belly bands are placed 3-5 feet apart on boats.

How to use the strap tensioning tool

Once the strap has been fed through the metal buckle and tightened by hand, the tensioning tool can then be used to further tighten the strap to your desired tension. The tensioning tool features a durable design with few moving parts.

Strapping Infographic

When to use the strap tensioning tool

Mr. Shrinkwrap's On-Site Services Team has been using tensioning tools for years for many applications, and they are a must-have - especially when shrink wrapping large equipment for open-road travel.

We recommend using the Strap Tensioning Tool when installing the greatest load-bearing strap for your shrink wrap installation. This would be the peak or center strap on boats, and the belt or perimeter strap on industrial equipment and vehicles.

Mr. Shrinkwrap’s strap tensioning tool is ON SALE! Save over $25 on yours today!

Holes Happen

By November 9, 2020 21448 Views No comments

With any shrink wrap project, holes are always a possibility.

Mr. Shrinkwrap has all the tips and tricks to shrink wrap hole prevention and repair.

When preventing holes, preparation is key. Prior to shrink wrapping your boat or other assets, be sure to examine the surface and locate any sharp corners, edges, or protruding metal such as screws. Once areas of concern are identified, place pieces of ¼ inch foam padding on each and tape to secure.

Let’s Talk Padding and Tape

Prior to shrink wrapping your boat or other asset be sure to apply padding to prevent chafing against the wrap. Padding can be used as-is or can be folded in half to double up on protection. Depending on the protrusion you are covering a double layer might be necessary, especially for long term storage. Mr. Shrinkwrap experts recommend using a 6x6 piece of foam padding to easily fold in half and cover any object.

When taping down foam padding, be sure to always use preservation tape. This is so very important because preservation tape does not leave an adhesive residue that can damage your boat or other assets (In comparison: think about duct tape and the residue it can leave behind after being applied to an object and is left in the sun and elements for months...YUCK! This is what you will avoid by only using preservation tape). The adhesive in preservation tape also has a UV inhibitor so it is not impacted by sunlight or extended exposure.

Foam padding is used on industrial objects and boats, specifically, corners of the windshield (recommended to fold the padding in half), antenna brackets, hardtops/t-tops with rod holders, and padding small screws (along the rail).

Pro Tip!

Cover any objects that might get hot during the shrink wrap process with foam padding. Any protruding items including nozzles, pipes, brackets, and corners should all be padded. Any metal pieces that will be touching the shrink wrap for a long period of time should be padded.

How to Repair a Hole

Pro tip: place the patch behind the hole and only use tape over the hole

When a hole inevitably occurs, there are a few quick and easy steps to repair and keep your cover strong and durable all offseason.

Pro tip: for small holes, use a scrap piece of shrink wrap to prevent tape from touching the boat. Open the hole a little wider to insert scrap piece behind, hold it in place while you stick the tape over the hole, and ensure the tape adheres to the shrink wrap scrap instead of the boat.

If your hole is larger than a small opening, use leftover shrink wrap or cut small “patches” of shrink wrap (approximately 2”-3” larger than the hole, if possible place behind the hole instead of on top of it.) and place on the hole. Then use shrink film tape to secure the patch stays in place. All edges of the patch should be completely covered with tape. Once the tape is in place, slightly warm with a heat gun to ensure the tape adheres and tightens. This patch will hold perform as good as new. Pro Tip: Be sure to clean the area around the hole prior to repairing.

Be sure to add 4" preservation tape and foam padding to your cart for every shrink wrapping project. These items are essential to prevent and repair shrink wrap holes.

Shrink Wrap Boat Kits

By November 2, 2020 1887 Views No comments

Time is running out to wrap your boats. With a boat kit, you'll have everything you need to do the job quickly. There is a little over one month until the start of the winter season.

As winter is fast approaching in the northern parts of the country, this inevitably means the time has come to wrap your boat for the next 4-6 months. While this task can seem daunting, Mr. Shrinkwrap has the solution for a one-stop kit with all of the essentials needed.

Our team of shrink wrap experts have put together kits that include everything you will need from gloves to tape to strapping, foam padding, knives, vents, and of course a shrink wrap heat gun.

Boat wrapping example 1

We offer these kits featuring three of our most popular heat guns, the Shrinkfast 998, the Ripack 2200, and the Ripack 3000.

If your boat is over 25’ we have a single-use option that includes the proper number of vents, stapping, and buckles to wrap your boat for one season.

If you have a boat smaller than 25’ we have a kit that allows you to wrap your boat three seasons in a row. This kit could also be used for those who may have more than one boat smaller than 25’.

Two options:

Option 1 - Large Single Boat Wrap Kit (25’ or larger)

Option 2 - Smaller Boat 3 Years in a Row (or three smaller boats less than 25’)

Once the kit is placed in your cart all you need to do is select the correct size of shrink wrap based on the dimensions of your boat. Buy Shrink Wrap Here

Mr. Shrinkwrap offers some pro tips for measuring your boat properly:

  • Above the Rail Measurement - On most traditional boats, there is a rub rail around the outer edge of the boat. The "above the rail measurement" is the distance between the rub rail and the highest point on the boat where the shrink wrap is expected to cover.
  • Below the Rail Measurement - This measurement is based on your preference of how far below the rub rail your shrink wrap should cover. Our preference is to cover every part of the boat above the waterline. This "below the rail" measurement is best taken at the tallest point of the rub rail.
  • Tucking & Fusing - Plan ahead to leave enough extra material to tuck the edge under the strap so that two layers of shrink wrap can be heat welded together to a secure installation. The heat welding can be done with as little as 6 inches of overlap. Keep in mind that the smaller the overlap, the more careful you must be that the shrink wrap isn't moving as you pull to secure it. With taller or wider boats, you might find yourself a bit short of material at the widest point of your boat - but don't worry! It is easy enough to patch a small part of the wrap if the material falls short somewhere. There should be enough excess material from the cutout made for the bow to use for the quick patch. Remember to use the rule of overlapping 6 inches or more for all edges of your patch as well!

Formula – Required Shrink wrap Width = (Above the Rail Measurement + Below the Rail Measurement + Tuck & Fusing) * 2

***Please notice the multiplication by 2 at the end of the formula! The formula above will only provide enough shrinkwrap to securely cover half of your boat without the multiplication by 2 at the end of the formula.***

Boats under 25’ in length may consider measuring from stern to bow with a path above the highest point on the boat, then adding a minimum of 6 inches of tucking and fusing at both ends. This method allows you to pull the shrinkwrap sideways over the boat so that the width covers the length of the boat.

Some boats may require the use of wood 2x4's for vertical support, we recommend using end and bottom caps for each support post to keep your boat surface scratch-free.

Boat wrapping example 2White - Most commonly used. Holds up in most climates well and offers minimal heat transference.

  • Clear - Primarily used to cover greenhouses. Also used for brokerage boats & liveaboards spending their winters ‘on the hard’. Clear shrink wrap is more likely to build up moisture under the cover and should be ventilated properly.
  • Blue - Ideal if your boat is being stored in an extreme northern climate. The blue color absorbs heat and allows snow and ice to slide off the boat. Not recommended for long-term storage or in spring-like conditions.
  • Be sure to get all of your supplies to wrap your boat this winter!

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