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Old Apr 28, 2010, 12:38 PM
gapagod is online now
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Depron Glue Evaluation


OK, I'm going to build a depron T-38 from www.parkjets.com. After reading online, I tried 5-6 different adhesives. Uhu Pur and Creativ were not available at my local hobby shop or at Michael's crafts. Here are my results.

Testing process: glue multiple strips from the cut edge to the finished edge of depron foam. Test joint an hour later and then test another joint after sitting overnight. Try pulling the foam apart, then bend it.

Glues tested:

Gorilla Glue, white
Beacon, Hold the Foam!
Beacon, 3 in 1
Crafter's Pick, The Ultimate!
Glue that came with my Lynx kit from HL.

Results.

Gorilla glue is well proven, great for gluing in spars. Just be sure not to use too much because of expansion.

Beacon, Hold the Foam! and Crafter's Pick, The Ultimate! seemed identical in consistency and performance. No real bond after an hour, still wet overnight. Perhaps because depron is closed foam and so the glues could not outgas or breath. I did tests gluing directly and also as a contact cement.

Lynx glue. Held well, but the glue peeled off. Did not form a very good mechanical bond. I did tests gluing directly and also as a contact cement.

Beacon, 3 in 1 performed the best for joint gluing. Formed a sound mechanical bond, secure after 10 minutes, fully bonded overnight. It has acetone and ethanol, which do melt the foam as part of the bonding process. Do not use too much as these same ingredients will actively melt the depron.

Thanks for your time.
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Old Apr 28, 2010, 01:27 PM
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gapagod,

A month or so ago I ordered some Foam Tac (made by Beacon) from RCFoam in Atlanta. I've been impressed by Beacon's 3in1 on EPP so I thought I would give this a try.

To make a long story short, turns out Foam Tac is/was a brand new product from Beacon specifically for use on Depron. I think the stuff is great and actually prefer it now over Uhu. Just my opinion though but you may want to try it out.

I'm assuming it will be available in your local Michael's, etc just like 3in1 is now. As a side note, I actually called Beacon a while back to get more info on the stuff and got a live body who actually tracked a gentleman down who was involved in the development/marketing of the glue (I believe his name was Peter). He actually seemed pretty interested in my feedback and spent some time on the phone. Just thought that was worth mentioning in this day where 9 levels of voice mail is the norm......

Hope that helps,

Mike
Old Apr 28, 2010, 02:55 PM
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Did you try hot glue?
Old Apr 28, 2010, 03:36 PM
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Hot glue is heavy compared to others. If you don't mind the extra weight and the "stringies" when you pull the gun back, then it's fine. Personally, UHU Creativ is still my favorite. I stocked up on several tubes when there was a guy selling it in the forums for a good price, so if you can get it, it's great stuff. When I run out, I will probably try Foam Tac, but that's not going to be for a while.
Old Apr 28, 2010, 03:44 PM
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I'd like to hear more of what the Beacon guy (Peter) said about foam tac.
Old Apr 29, 2010, 10:35 AM
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Quote:
Originally Posted by anatoly View Post
Hot glue is heavy compared to others.
.
.
Hot glue is usually very strong and fleksible. Therefore it's possible
to tac glue. Overheat the glue a bit so it melts into the Depron.
Done this way it may be just as light and stronger than e.g foam
safe CA. Best glue is Polyurethan glue (gorilla glue) but the type
I got so far is slow cure. Hot glue is fast. Foam safe CA become
britle easily but according to those who master it. It's dependent
on of much You apply. So it's very much a matter of skill and patience.

Remember to clean surface before glue is applied.
Old Apr 29, 2010, 12:57 PM
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Quote:
Originally Posted by philba View Post
I'd like to hear more of what the Beacon guy (Peter) said about foam tac.
philba when I spoke with Peter he basically said they had been approached to come up with a product similiar to/better than Uhu Por; something specific for use with Depron. He also mentioned they were working on similiar distribution to their other products (Michael's, etc.). Again I got mine from RCFoam.

Other than that, he really spent more time asking questions about what I thought of it, how I used it, etc.

Hope that helps. Maybe someone from Beacon will come across this thread and comment.

Mike
Old May 01, 2010, 03:57 PM
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I've tried a lot of glues and have pretty much come to rely mostly on TiteBond III. Not instant cure, but strong and any oozes clean up with a wet paper towel. Tex.
Old May 16, 2010, 04:55 AM
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Best glue I've found for depron is UHU Por (Creative in the States)
http://www.michaels.com/art/online/d...323&channelid=
If I'm laminating a large area the Maplin's spray adhesive as its cheap,easy to use and foam safe. Also works with EPP and ideal if you want to add coloured parcel tape which does'nt always stick to EPP very well.
http://www.maplin.co.uk/Module.aspx?ModuleNo=26286
Here is a thread about alternative glues to UHU which is aimed at USA builders
https://www.rcgroups.com/forums/showthread.php?t=854718
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Old May 16, 2010, 10:49 AM
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Anyone know what to use for thinning Fabri-Tac? It is a little to thick for my liking.
Old May 16, 2010, 03:25 PM
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Here's were I get my UHU from 6 tubes for around $18 +free shipping. MFG direct
Old May 16, 2010, 06:35 PM
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Quote:
Originally Posted by rLu View Post
Anyone know what to use for thinning Fabri-Tac? It is a little to thick for my liking.
It is acetone based so thin it down with acetone.
Old May 16, 2010, 11:52 PM
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Quote:
Originally Posted by RogueTitan View Post
It is acetone based so thin it down with acetone.

Thanks RogueTitan, it worked.
Old Jul 01, 2010, 07:46 PM
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I was going to buy foam tec from RCFoam and found the shipping way off - 9.95 for a 3.95 bottle - almost 3 times the price of the glue.
Old Jul 01, 2010, 08:38 PM
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Quote:
Originally Posted by philba View Post
I'd like to hear more of what the Beacon guy (Peter) said about foam tac.
From my experience, this stuff is way better than the 3 in 1.
Quote:
Originally Posted by donfl3344 View Post
I was going to buy foam tec from RCFoam and found the shipping way off - 9.95 for a 3.95 bottle - almost 3 times the price of the glue.
Contact them directly. That 9.95 would be if you had other stuff in your order. If it is only a bottle of glue, they would work something with you. Believe me on that one.


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