<a href=showthread.php?s=&postid=6400783#post6400783 target=_blank>Originally posted</a> by melev
I don't believe duct tape is water proof at all. Basically, you seem to be covering the MDF with a gigantic bandaid, which doesn't seem like a good solution to me. Painting it repeatedly, and especially around the edges - that is what will do the most good in prevention. You'll probably need to repaint annually to keep it sealed against moisture.
Your reply it got me very curious and did some looking around and found the following :
Is it Duct or Duck? We donââ"šÂ¬Ã¢"žÂ¢t want you to be confused, so we will explain. The first name for Duct Tape was DUCK. During World War II the U.S. Military needed a waterproof tape to keep the moisture out of ammunition cases. So, they enlisted the Johnson and Johnson Permacel Division to manufacture the tape. Because it was waterproof, everyone referred to it as ââ"šÂ¬Ã…"œduckââ"šÂ¬Ã‚ tape (like water off a duckââ"šÂ¬Ã¢"žÂ¢s back). Military personnel discovered that the tape was good for lots more than keeping out water. They used it for Jeep repair, fixing stuff on their guns, strapping equipment to their clothing... the list is endless.
After the War, the housing industry was booming and someone discovered that the tape was great for joining the heating and air conditioning duct work. So, the color was changed from army green to the silvery color we are familiar with today and people started to refer to it as ââ"šÂ¬Ã…"œduct tape*.ââ"šÂ¬Ã‚ Therefore, either name is appropriate.
Today, DuckÃ"šÃ‚® brand Tape is manufactured by Henkel Consumer Adhesives. After thoroughly familiarizing ourselves with the hundreds of duct tapes on the market, we have found DuckÃ"šÃ‚® brand Tape to be the most consistent in quality. And, we are delighted with the large array of colors that they manufacture (including camo tape and new ââ"šÂ¬Ã…"œX-Treme Tapeââ"šÂ¬Ã‚ which comes in hot day-glo colors).
Jim and I do lots of appearances promoting DuckÃ"šÃ‚® brand Tape and do so without reservation. Therefore, we go by both The Duct Tape Guys, and The Duck Tape Guys. And, we use the words Duck and Duct interchangeably throughout our web site.
So, whether you call it Duct Tape or Duck Tape... you are still using the ââ"šÂ¬Ã…"œUltimate Power Toolââ"šÂ¬Ã‚ in our estimation.
--- Jim and Tim, the Duck/Duct Tape Guys