Power Boat Centre Logo
Home  >  Flex Seal For Boats
Disclosure
This website is a participant in the Amazon Services LLC Associates Program. We are reader-supported. If you buy something through links on our site, we may earn an affiliate commission at no additional cost to you. This doesn't affect which products are included in our content. It helps us pay to keep this site free to use while providing you with expertly-researched unbiased recommendations.

The Best Flex Seal For Boats

Handpicked
Quality-Checked
Generated From 25K+ Reviews!

Buyer's Guide

What Is a Flex Seal and Why Is It Important?

The use of Flex Seal in marine construction is essential for securing the structure of a boat. It is used not only to seal the boat's seams, but also as a means of adding additional strength to various parts of the boat. A Flex Seal is also known as a double-faced gasket and this is used for sealing the water in the holds and at various other points around the boat.

The Flex Seal was invented by Ole Gabrielsen, a Danish automobile engineer inumed in the early 1950s. He realized that sealing the seams of the vehicle would be very important, as it would be left open for quite a long period of time. He soon began work on sealing the seams of ships. As these were much less expensive than what he had been working on previously, he decided to take his knowledge in full flight and design the Flex Seal. The flex seals has undergone several refinements over the years.

One of the first attempts to improve upon the Flex Seal was to make a 'Teflon' version of the seal. This was tried during the 1970s as a possible alternative to the original material but it did little good as the marine construction industry moved onto aluminium. However, this innovation did provide an easy method for applying the sealant. Instead of being a messy and thick application, you simply place it on the seams using the supplied plastic stick. After you have allowed the sealant to dry, you can wipe off the excess with a dry cloth.

Flex Seal has had its share of competition. A few companies have attempted making watertight marine construction bags with paper seals. These have had some limited success but did not replace the Flex Seal right away. Another paper seal was made using polyurethane foam. This was also used as an alternative to Flex Seal for boats and ships, but proved to be too heavy and ineffective.

It seems that the world of Flex Seal eventually moved on from these water tight sealants. Over the years several different versions of Flex Seal have been manufactured. The most common is a marine grade flexible rubber seal. It is commonly used on boat doors and to stop leaks on boat transom and the hull itself. This version is almost completely impervious to the elements; it is impermeable to water and most chemicals.

The most recent innovation in the world of Flex Seal has been released to the consumer market. The Flex Seal Advanced version has a reinforced Kevlar outer surface that is covered in a water resistant clear laminate. This allows it to be used on a boat without needing any other sealant on the inside. This makes it ideal for those who want an easy to apply boat sealing solution without having to sacrifice the effectiveness that previous versions have provided.

One of the most common uses that people request a Flex Seal boat seal for is to prevent the entry of water into a door. Some people open the door only to find water pouring in. If this scenario played out in your house, you know that it could cause significant damage. A Flex Seal can be used to make the seal remain intact even when the door is opened and the sealant has been applied. It prevents the entry of large volumes of water as well, which saves you money and time in the long run.

Some seals are designed to be used on more than one door or to seal a door entirely. You may have seen theseflexes on trailers that park in the driveway or on the sides of a building. This is how it is possible for the seal to perform its intended task while also preventing water from entering a space. You can prevent the entrance of unwanted visitors by using this type of flexible seal on the exterior of your building or trailer.

menu