Eternabond lifting... September 08, 2009, 05:48:17 pm Yahoo Message Number: 105659Like some others have found, while preparing for an upcoming trip, I discovered the Eternabond tape covering the roof seams was lifted in spots. In every case, it is where one run 'Tee'd' into another. At the time of application, I had problems with the tape sticking to itself - specifically to the bright white UV-resistant cover. There may also be an effect due to the 'lump' the crossing tape must seal to. Note that everywhere else - to old Parlastic or roof - the seal is tight. For now, hopefully permanently, I worked some parlastic under the raised areas and squished out air bubbles, then a coating on top of the joint.We'll see...Steve
Re: Eternabond lifting... Reply #1 – September 08, 2009, 08:45:57 pm Yahoo Message Number: 105664wrote: Like some others have found, while preparing for an upcoming trip, I discovered the Eternabond tape covering the roof seams was lifted in spots. In every case, it is where one run 'Tee'd' into another. At the time of application, I had problems with the tape sticking to itself - specifically to the bright white UV-resistant cover. --- Steve, was the Eternabond job on your rig done some time ago, or is it recent? If recent, is it your opinion that the "run" of tape (adhesive) that you (and apparently several others used) is defective? I'd be curious to know if the "bad" tape that you and others have experienced came from one vendor or from varied sources, and if there's a way to find out the age of the tape when it was purchased. (I doubt that there's a "use by" date on each roll!) I want to seal all the seams and around the vents on my 2003 pretty soon, so any and all information and thoughts are appreciated.Joan
Re: Eternabond lifting... Reply #2 – September 08, 2009, 11:45:05 pm Yahoo Message Number: 105670...or from varied sources, and if there's a way to find out the age of the tape when it was purchased....QuoteJoan Good points Joan - What about temp tape is stored in as well as how is shipped - agree would want to be cautious of supplier - can this be order direct from MFGVirginia
Re: Eternabond lifting... Reply #3 – September 09, 2009, 06:36:53 pm Yahoo Message Number: 105720QuoteSteve, was the Eternabond job on your rig done some time ago, or is it recent? If recent, is it your opinion that the "run" of tape (adhesive) that you (and apparently several others used) is defective? I'd be curious to know if the "bad" tape that you and others have experienced came from one vendor or from varied sources, and if there's a way to find out the age of the tape when it was purchased. (I doubt that there's a "use by" date on each roll!) I want to seal all the seams and around the vents on my 2003 pretty soon, so any and all information and thoughts are appreciated. Joan, the tape was installed less than a year ago now, and I have some indication the lifting occurred awhile ago - perhaps it never really bonded. The tape was a new shipment, received less than a month before application. I do NOT think the adhesive itself is defective - it has bonded solidly to all surfaces where firm contact was made and nothing interfered, except itself. The tape has a top ply of UV-resistant white plastic, and this is the surface the bottom of another layer may not be bonding to (and is probably intentional). I ran transverse strips of the tape continuously across the aluminum roof panel joins, up onto the curved roof edge protectors. I then ran continuous strips of the tape down the seam between the edge protectors and the roof panels. This gave about a 2" overlap area, and the bond to the roof has been compromised near the joins. I believe the problem could have been avoided by NOT overlapping the tape - butt-joining the interface by mushing the end of one run into the side of the perpendicular run would probably have worked. As a solution, I injected Parlastic into the resulting air-gaps, squishing the tape to work it around, then applying more Parlastic on top. Not elegant, but it's out of sight on the roof anyway.Steve
Re: Eternabond lifting... Reply #4 – September 09, 2009, 07:54:56 pm Yahoo Message Number: 105728Quote Steve, was the Eternabond job on your rig done some time ago, or is it recent? If recent, is it your opinion that the "run" of tape (adhesive) that you (and apparently several others used) is defective? .......................................................... QuoteJoan, the tape was installed less than a year ago now, and I have some indication the lifting occurred awhile ago - perhaps it never really bonded. The tape was a new shipment, received less than a month before application. I do NOT think the adhesive itself is defective - it has bonded solidly to all surfaces where firm contact was made and nothing interfered,...................... OK, you folks have pushed my worry button to force me into an inspection of my Eternabond job. Our LD is a 2004 23.5FL and the Eternabond has been on 2 years. The reason for the early Eternabond install was LD used hex head screws on our roof seams. The edges of the screw heads started breaking through the factory sealant after two years which compromsed the sealing effectiveness. So rather than spend a night or two in beautiful Pomona I opted to go the Eternabond rout. My job is similar to the way Steve layed out his tape. So after checking all overlaps and all edges I found zero lifting. This includes the tape around the escape hatch where there is considerable overlap such as at the corners and by the CB antenna bracket. Mine is sticking as tight to the tape plastic surface as it is to the roof surface. I purchased my Eternabond from Best Materials.Tom Schmal Santa Clara, CA
Re: Eternabond lifting... Reply #5 – September 09, 2009, 08:43:37 pm Yahoo Message Number: 105729wrote: the tape was installed less than a year ago now, and I have some indication the lifting occurred awhile ago - perhaps it never really bonded. The tape was a new shipment, received less than a month before application. I do NOT think the adhesive itself is defective - it has bonded solidly to all surfaces where firm contact was made and nothing interfered, except itself. (snip) --- Thank you for the reply, Steve; a most thorough and informative explanation! I "Eternabonded" the front cabover seam a couple of years ago or more; so far, it looks good; no lifting, no bubbles, and no separation. Sealing the whole roof, including around the vents, is not something I look forward to, but it has to be done; sigh....;-)Joan
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