8/13/2023 0 Comments Roller for putting down putty tape![]() These are a few pics of from guys who bought RV stuff on-line and later bought the stuff I now sell. He's going to rebed it once it leaks so now we are curious to see how long it lasts.īottom line is if I have to put my name on it it's going to be good stuff. I honestly would not have given this stuff three weeks. Just like Polyurethane sealants such as 4200, 5200, Sikaflex etc., of which there are hundreds of "brands", people use the good ones in the marine environment because they work well and are time tested and proven.Īlso butyl is only another tool in the shed for bedding and all the other products still have a place and, I still use them depending upon the situation.Īll that said I have a friend who bought some pretty poor quality butyl and its been three years and it is still not leaking, so the prep counts for a lot. That is a pretty dismal ratio and less good than simply going to Vegas. While you can certainly get lucky I found that after buying over 40 different rolls/brands only about four or five were products I would be willing to use on a regular basis. One roll I ordered of eBay was foam rubber not butyl this despite the picture and description on ebay describing it as butyl tape. ![]() Still not much different than it was in 1998 other than sticking to the backing paper a little more. I have a roll of quality tape I bought in 1998 that I show customers who pick up at my house. One roll I had, of "unknown" quality, got hard and brittle just sitting in my barn. Some of it stretched less than an inch in sub 20 degree weather and some went 6 inches but none stretched as long or as far as the best performing stuff or stuck to parts as well. I ordered about 16-20 different rolls / brands of RV tape and about half was absolutely unacceptable and the other half could possibly work ok for a while but was still not as good as a quality glazing tape. Some is really wet/solventy, some is really soft with little density, some lacks the elasticity and some failed my cold weather testing. Some of the stuff you are buying the manufacturer is selling for $0.45 - $0.65 roll and uses "fillers" to get the price down as purer butyl rubber is absolutely not cheap. Tracking back the manufacturers led me to some interesting finds. Much of the RV stuff I found is now produced offshore and the quality and consistency was all over the place, a real crap shoot. This is what forced me into sourcing some known quality stuff for the boating community. The big problem with RV tapes is that the quality is all over the map and I found after putting them side by side it is kind of like going to Vegas. Black can be very, messy, trust me my prots lights were bedded with NFM's black stuff and it is horrible. When I found it the only problem was that it was not made in gray, only black. Not too wet or solventy, enough durometer/harness, but not too much, and very, very stretchy & flexible an a wide working temp range. With EPA regs changing all the time this was difficult. I spent six months evaluating butyl tape before I found one that met standards I felt were suitable and comparable to the older stuff the builders used to use. I buy direct from the manufacturer in multi-pallet skids and pay more for the good stuff than re-sellers four times removed from the manufacturer are selling the cheap stuff for. You really can't buy this stuff based on price alone, as I found out. These are usually high solvent tapes made to be messy gummy stuff for jamming in roof cracks on RV's. ![]() RV advertised butyl it is often of poor quality and can continue to "bleed" and is also often not even butyl. While not the same as the stuff the boat builders used to use it will be far better than many of the cheap RV tapes or roofing tapes of unknown origin or make up. It has to meet some minimum glazing industry standards and the RV or roofing stuff does not. If you buy a roll that is not from me at least buy a genuine glazing butyl. ![]() One guy even emailed me a video which I will try and find. It rips instead of stretches and melts in water.not good. I have no idea what it is but it is not butyl. I have had three or four customer send me a rolls they bought advertised as "butyl" that melted in water. Some you buy on the net is not even butyl at all but rather a water soluble putty tape. There are vast differences in butyl tape.
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