Eternabond Unstuck? July 05, 2009, 12:18:04 am Yahoo Message Number: 103704A while ago, there was a discussion here about Eternabond tape coming unstuck. About a year ago, I taped the long roof seams of my MB. Prepared with alcohol and rolled down with a seam roller. About 4 months ago, I bought another roll, (4" x 50'). Taped down exit hatch, refrigerator vent and stuck down two junction box lids for magnetic antenna mounts. Cleaned with alcohol and rolled down like before. The new batch is coming unstuck all over and in some places about 1/3 of the width. The old batch is stuck down just fine. Anyone else research this to see if there was a defective batch?
Re: Eternabond Unstuck? Reply #1 – July 05, 2009, 10:14:22 am Yahoo Message Number: 103705Quote A while ago, there was a discussion here about Eternabond tape coming unstuck. About a year ago, I taped the long roof seams of my MB. Prepared with alcohol and rolled down with a seam roller. About 4 months ago, I bought another roll, (4" x 50'). Taped down exit hatch, refrigerator vent and stuck down two junction box lids for magnetic antenna mounts. Cleaned with alcohol and rolled down like before. The new batch is coming unstuck all over and in some places about 1/3 of the width. The old batch is stuck down just fine. Anyone else research this to see if there was a defective batch? Alcohol is not the best organic solvent - it works on some contamination, but not all. Generally, alcohol is a last-step cleaner, since it will remove most other solvents and displace water. It is likely that some natural contaminant is there this time that was not present significantly before your first use. Assuming you have some of the latest batch of tape left, try a new area, scrubbing first with a good detergent, following with isopropyl. See if it sticks strongly now.Steve
Re: Eternabond Unstuck? Reply #2 – July 05, 2009, 10:40:06 am Yahoo Message Number: 103706Quote "...Alcohol is not the best organic solvent - it works on some contamination, but not all. Generally, alcohol is a last-step cleaner, since it will remove most other solvents and displace water. It is likely that some natural contaminant is there this time that was not present significantly before your first use. Assuming you have some of the latest batch of tape left, try a new area, scrubbing first with a good detergent, following with isopropyl. See if it sticks strongly now."Steve So, Steve, you are referring to isopropyl alcohol you can buy at any drugstore for .79 a bottle - as opposed to pure alcohol? And what is your recommendation for a "good detergent"?Chris
Re: Eternabond Unstuck? Reply #3 – July 05, 2009, 12:52:09 pm Yahoo Message Number: 103707"Anyone else research this to see if there was a defective batch?" It's beginning to sound that way, Roger--see Ellen's message #102840 and replies, just over a month ago. Given the fact that you used the same technique in both cases, yet the product performance was dramatically different, I'd suggest contacting Eternabond as Ellen did.Andy Baird http://www.andybaird.com/travels/
Re: Eternabond Unstuck? Reply #4 – July 05, 2009, 01:41:37 pm Yahoo Message Number: 103709Quote "...Alcohol is not the best organic solvent - it works on some contamination, but not all. Generally, alcohol is a last-step cleaner, since it will remove most other solvents and displace water. It is likely that some natural contaminant is there this time that was not present significantly before your first use. Assuming you have some of the latest batch of tape left, try a new area, scrubbing first with a good detergent, following with isopropyl. See if it sticks strongly now."Steve So, Steve, you are referring to isopropyl alcohol you can buy at any drugstore for .79 a bottle - as opposed to pure alcohol? And what is your recommendation for a "good detergent"?Chris Chris, by 'pure' alcohol, are you referring 99.9% pure lab grade IPA, or to some other type, such as methanol? Generally, drugstores have available 70% or 90+% IPA as rubbing alcohol, with the remainder percentage being primarily water. The 70% would have a slightly longer drying time, but I look for the 90% by preference, in the drugstores. Methanol is a simpler alcohol, and is often used as a first-step cleaner in a lab process, but it does not remove organics well either. It is also poisonous and absorbed through the skin, so I do not recommend including that, even with gloves. Ethanol is highly flammable and burns with an invisible flame, so definitely avoid that. By 'good' detergent, I tend to use whatever is safe for the surface finish, so a non-waxing car wash would probably do just fine, and a 'bug and tar' remover to proceed it if necessary; 409 would probably work too.Steve
Re: Eternabond Unstuck? Reply #5 – July 05, 2009, 02:14:35 pm Yahoo Message Number: 103710Quote From: aq433 To: lifewithalazydazerv@yahoogroups.com Sent: Sunday, July 05, 2009 10:41 AM Subject: [LD] Re: Eternabond Unstuck?Chris, by 'pure' alcohol, are you referring 99.9% pure lab grade IPA, or to some other type, such as methanol? Generally, drugstores have available 70% or 90+% IPA as rubbing alcohol, with the remainder percentage being primarily water. The 70% would have a slightly longer drying time, but I look for the 90% by preference, in the drugstores. Methanol is a simpler alcohol, and is often used as a first-step cleaner in a lab process, but it does not remove organics well either. It is also poisonous and absorbed through the skin, so I do not recommend including that, even with gloves. Ethanol is highly flammable and burns with an invisible flame, so definitely avoid that. By 'good' detergent, I tend to use whatever is safe for the surface finish, so a non-waxing car wash would probably do just fine, and a 'bug and tar' remover to proceed it if necessary; 409 would probably work too.SteveI leave the rubbing alcohol in the house, instead using denatured alcohol (ethanol) as a solvent. Either should work fine, but denatured alcohol is cheaper and doubtless dries faster (no water). http://en.wikipedia.org/wiki/Rubbing_alcoholbumper
Re: Eternabond Unstuck? Reply #6 – July 05, 2009, 06:03:51 pm Yahoo Message Number: 103712QuoteChris, by 'pure' alcohol, are you referring 99.9% pure lab grade IPA, or to some other type, such as methanol? Generally, drugstores have available 70% or 90+% IPA as rubbing alcohol, with the remainder percentage being primarily water. The 70% would have a slightly longer drying time, but I look for the 90% by preference, in the drugstores. Methanol is a simpler alcohol, and is often used as a first-step cleaner in a lab process, but it does not remove organics well either. It is also poisonous and absorbed through the skin, so I do not recommend including that, even with gloves. Ethanol is highly flammable and burns with an invisible flame, so definitely avoid that. By 'good' detergent, I tend to use whatever is safe for the surface finish, so a non-waxing car wash would probably do just fine, and a 'bug and tar' remover to proceed it if necessary; 409 would probably work too.Steve"I leave the rubbing alcohol in the house, instead using denatured alcohol (ethanol) as a solvent. Either should work fine, but denatured alcohol is cheaper and doubtless dries faster (no water). http://en.wikipedia.org/wiki/Rubbing_alcohol"bumper Thanks, Steve and bumper. I'm saving related info, knowing that in 2-4 yrs I'll have to Eternabond my '02. Be prepared, that's the Boy Scouts' marching song...Chris
Re: Eternabond Unstuck? Reply #7 – July 05, 2009, 07:01:07 pm Yahoo Message Number: 103713Quote... Be prepared, that's the Boy Scouts' marching song... Thanks a bunch, now I'm gonna have Tom Lehrer in my head for the rest of the evening. I used acetone as prep for my Eternabond and it seems to have worked just fine.Joanne in Boston
Re: Eternabond Unstuck? Reply #8 – July 05, 2009, 08:31:17 pm Yahoo Message Number: 103718QuoteI used acetone as prep for my Eternabond and it seems to have worked just fine. Used acetone as well. No problems two years later.Ed
Re: Eternabond Unstuck? Reply #9 – July 05, 2009, 10:21:43 pm Yahoo Message Number: 103721I was wondering whether those who used ethanol used it before or after placing the Eternabond? Just curious up
Re: Eternabond Unstuck? Reply #10 – July 06, 2009, 01:20:00 am Yahoo Message Number: 103724QuoteI leave the rubbing alcohol in the house, instead using denatured alcohol (ethanol) as a solvent. Either should work fine, but denatured alcohol is cheaper and doubtless dries faster (no water). http://en.wikipedia.org/wiki/Rubbing_alcohol Bumper, note that denatured alcohol is by definition NOT pure ethanol, and the denaturing agent may not known - and possibly a contaminant. It is not generally intended for precision cleaning, and is not used in the lab. It may also have a water content. IPA is the solvent of choice for displacing water and as a drying agent. The 90+% variety from drug stores is about the purest alcohol available for home cleaning, and if not consumed, very safe. It is also the best solvent for permanent ink, BTW.Steve
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