SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Feb 17, 2003, 12:40 AM
Registered User
United States, IN, Evansville
Joined May 2001
1,765 Posts
Elmers Rubber Cement V.S. Dap Weldwood Contact Cement

I built an IFO type plane. I went out and got Elmers Rubber cement to attach the ripstop nylon to the frame. It did not work out that well and did not hold as well as I thought it should. I took the covering off and removed all the dry rubber cement by rubbing it. I now have a fresh frame and fabric to try again.

Is elmers rubber cement not the same type of glue as Dap Welwood contact cement? If it is not then I know what the problem is. If it is then what is the correct way to use it?

Thanks,
Kenny
kenny_dilger is offline Find More Posts by kenny_dilger
Reply With Quote
Sign up now
to remove ads between posts
Old Feb 17, 2003, 07:38 AM
aka: A.Roger Wilfong
gnofliwr's Avatar
Novi, Michigan, United States
Joined Jan 2001
2,542 Posts
Yes, it is not the same thing.

About the only use rubber cement has in modeling is to temporarily attach paper templates to wood. It doesn't work for permanent attachment. Elmers does make a contact cement similar to Weldwood, but it doesn't have "rubber" in the name. Contact cement is good for permanent bonds. You coat both surfaces and let it dry - then press the two surfaces together. If done right, they bond instantly. You have to have everything lined up because you don't get a second chance - as soon as they touch, they bond (I once saw a carpenter trash a counter top and start over when the piece of Formica he was installing accidentally touched the surface at the wrong point - it required lots of solivent and the Formica came off in little chunks - sometimes taking pieces of plywood with it).
gnofliwr is offline Find More Posts by gnofliwr
Reply With Quote
Old Feb 17, 2003, 07:32 PM
Registered User
Iron Mountain,MI
Joined May 2002
2,272 Posts
I've had very good luck releasing the Welwood contact cement using acetone. Was on coroplast however
uncled is offline Find More Posts by uncled
Reply With Quote
Old Feb 18, 2003, 08:20 AM
aka: A.Roger Wilfong
gnofliwr's Avatar
Novi, Michigan, United States
Joined Jan 2001
2,542 Posts
uncled,

I'm interested in how well the Weldwood bonded the Coroplast. Were you bonding Coroplast to Coroplast? How well did it hold?

- Roger
gnofliwr is offline Find More Posts by gnofliwr
Reply With Quote
Old Feb 18, 2003, 09:32 AM
Registered User
Iron Mountain,MI
Joined May 2002
2,272 Posts
Hello Roger, The Dap Weldwood , DevCon or TRue Value's TruBond contact cement was the recommended adhesives for building the now out of date U. S. AirCore line of models. It works very well , as does some of the silicone sealant types of products. The U. S. AirCore models had some areas where it was easy to make a mistake in joining parts so the ability of acetone to release the parts was a welcome find The contact cement MUST be allowed to dry before the parts are pressed together however. If you don't allow the cement to dry to the proper stage - - - sometimes twenty minutes or more - - - - It will not work. I Bonded Coroplast to Coroplast and many other materials to Coroplast as well. Hope this helps, Don
uncled is offline Find More Posts by uncled
Reply With Quote
Old Feb 18, 2003, 10:22 AM
Registered User
birdbrain's Avatar
des moines, ia 50310
Joined Jul 2001
211 Posts
are any of the above mentioned contacy cements compatible with foam?
birdbrain is online now Find More Posts by birdbrain
Reply With Quote
Old Feb 18, 2003, 10:28 AM
Registered User
Iron Mountain,MI
Joined May 2002
2,272 Posts
I am guessing No, but there are water based contact cements that might be. I have used reinforced tape on foam after dusting the foam with 3M 77 - - - then applying the contact cement on the taped area - - - then to whatever I wanted to secure and this works pretty well for some odd things
uncled is offline Find More Posts by uncled
Reply With Quote
Old Feb 18, 2003, 10:37 AM
Team 30 Micro EDF
Mike Taylor's Avatar
Camarillo, California
Joined Apr 2002
4,516 Posts
I'm become an RC-56 fan for bonding foam to anything. Flexible, strong, clear when it cures, but does take a long time to cure...
Mike Taylor is offline Find More Posts by Mike Taylor
Reply With Quote
Old Feb 18, 2003, 10:53 AM
Registered User
Iron Mountain,MI
Joined May 2002
2,272 Posts
Quote:
Originally posted by Mike Taylor
I'm become an RC-56 fan for bonding foam to anything. Flexible, strong, clear when it cures, but does take a long time to cure...
I've seen that mentioned before. Who's product is it and where can it be found ? Thanks, Don
uncled is offline Find More Posts by uncled
Reply With Quote
Old Feb 18, 2003, 10:57 AM
What Canary?
KeithK's Avatar
Huntsville, AL USA
Joined Jul 2000
1,741 Posts
Kenny,

The "airproofing" the manufacturers applied to the ripstop is hard to adhere to. THe Weldwood I use works well, but I do have to add a bit here and there due to the strain on the fabric from use. Are you applying it in a warm area? Also, make sure the product you use is as thin as possible. Older cans of cement lose their ability to stick well to this type of material. Plus, using a new can of Weldwood cement, in a warm enclosed environment, you get to see colors you never new existed
KeithK is offline Find More Posts by KeithK
Reply With Quote
Old Feb 18, 2003, 11:52 AM
Team 30 Micro EDF
Mike Taylor's Avatar
Camarillo, California
Joined Apr 2002
4,516 Posts
Don,

I'll look at the bottle when I get home and give the mfr's name, but I got it from the LHS for building the FanTastic GeeBee, and have been using it more and more ever since. It is a moisture curing, clear drying, elastic glue with a lot of good qualities...
Mike Taylor is offline Find More Posts by Mike Taylor
Reply With Quote
Old Feb 19, 2003, 12:08 AM
Registered User
United States, IN, Evansville
Joined May 2001
1,765 Posts
Yup,

I used welwood and it worked about 100 times better. This is my first IFO covering so I am not that satified with it but it flies so someday I will build another.

thanks,
Kenny
kenny_dilger is offline Find More Posts by kenny_dilger
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Help needed: alternatives to Weldwood Contact Cement for IFO covering Allan_A Parkflyers 1 Mar 05, 2004 08:55 PM
Help! Need alternative for Weldwood Contact Cement Xnaron Scratchbuilt Indoor and Micro Models 1 Mar 26, 2003 06:09 PM
Where to find Weldwood contact cement in Canada??? Xnaron Scratchbuilt Indoor and Micro Models 1 Mar 25, 2003 12:09 PM
weldwood contact cement werner Scratchbuilt Indoor and Micro Models 2 Aug 31, 2002 10:56 AM
DAP Weldwood Contact Cement and Reynolds Crystal Wrap? CheeseWing Parkflyers 1 Sep 23, 2001 08:50 PM