Opinions on glue

[Huckebein]

I am wondering what is the best type of glue to use for a p-nut?
I have read Don Ross's book on rbff. He says using thinned carpenter's glue. (long drying time)Others say that CA is the way to go. I tried using CA on a botched attempt at a Fokker D8 scratch-build. After 3 attempts at carving the cowling I gave up. :mad: :mad:
The CA seemed to run all over and seep into the wood. I imagine that probably would have weighted down the frame.

Help!!

[T. Lyttle]

Like any other thing that you add to a model, glue is weight: which one is lighter? How much weight blows off with CA? How much water evaporates from thinned wood glue? And on and on, same with dope, polyurethane etc. If you pick up a bottle of CA, how much less does an empy one weigh? And how much of the contents turn to vapour?

I found that until you get into competition microfilm, there ain't much difference. My favourite is water-thinned aliphatic, mostly because I am no longer in a hurry, simple as that: I can wait for the parts to dry overnight! :D

[jernst]

I use "sigment" or "ambroid" glue - thinned about 70/30 with acetone.

Dries quick and sands easily. Very light. Apply to both surfaces to be joined, let dry (30 sec or so), apply to one of the surfaces, then assemble.

Joints can easily be "undone" by applying Acetone.

j ernst

[steve lewin]

On small stuff I usually use Deluxe Materials Superphatic which is a lot like thinned aliphatic but does seem to grab a little quicker.

OTOH I do use CA sometimes and I know what you mean about running everywhere. I've been known to apply thin CA by picking a drop up on the end of a pin. It seems to work and it certainly doesn't flood all over the place ;).

Steve

[T. Lyttle]

But clearly you guys are more fastidious than I am, I never build to that level. I do remember when I built with CA that there was a definite trick to how long the tube had to be to stop flooding, but since I moved up here, I don't seem to need the speed that CA allows.... ho, hum... :cool:

[lxdye]

I definitely go the carpenters glue route as suggested in Ross' book.

I have used cya a bit but go back to carpenters. I usually put a bit in a small glass custard cup, and use a fine brush to apply it to the members being joined. It washes up easily.

Too much and you will have flashing to carve off after. Just the right amount and you have a good strong joint.

I used to use fast drying stuff out of the tube, but it was too fast and I had lots of flashing to cut off. Too much waste.

Try the carpenters glue.

[dephela]

CA is a harder more brittle glue but can get the job done. Using a pipette that has a small opening does allow you to meter only the right amount needed onto a joint.

Pipettes and the CA in them can last a long time. using CA straight from the bottle is terrible. Using a pin or other device is laborious and you might still get more than you need on the joint. Pick up a few pipettes and get into the flow.

Dennis

[Huckebein]

Actually

I went with CA again ...but this time I made a tool to apply it with.
In Flailing's "building a peanut" thread he showed a pic of his tool so I copied it!! It works great! I just pin all the wood in place...then I dip the tool in CA. A tiny bit of glue is held between the ends of the forks. When I place it over a joint the glue seeps in between the the wood pieces and it's glued! No mess!

[billystiltner]

theres a thread in the micro models forum about glue and there was a suggestion of making homemade glue with acetone and some sort of nitro cellulose plastic. I know Huckebein has allready seen the thread.

[The Don]

I have been using Duco Household cement for about 18 years now. I thin it about 50/50 with acetone for heavier pnut type models. Thinner for my indoor duration models. It dries in about 15-20 minutes or less and is easy to sand and is very strong. Carpenters glue is fine if you want to take a month to build it. CA tends to be heavy and brittle (likes to crack when you crash!). I do use CA sometimes to 'quick build' a fuselage, just enough to hold it together. Then I apply my Duco to soak in the wood and give it good strength.