RCU Forums - View Single Post - While repairing a dope and fabric airplane...
Old 08-17-2005 | 04:49 PM
  #13  
Noin
Junior Member
 
Joined: May 2004
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
From: Milton, ON, CANADA
Default RE: While repairing a dope and fabric airplane...

I went to my local supplier of Randolfs and they asked me a question I was not aware was an issue and that is "How old is the dope your using?". It is 10-15 years old, I was under theimpression that dope didn't age poorly. Apperently this is not the case and Randolfs recommended shelf life is one year after opening. I bought a new quart of the same colour and tested a patch, so far so good. Only problem now is the new quart is not an exact match to the old colour, so now I have to paint all the surfaces that had that colour with the new colour.

A side note, this all started when I had to make a repair to the landing gear. I made the repair and then was using white dope thinned down to seal the new repair and I had a small run down the side of the fuse. It got to the thin black stripe and the bigger red one before I could stop it. I wiped up the dope before it dried but it left a smear of colour. So all I had to do was touch up the red and black stripes. Did the red first, just a small area as the run mark was very small. Thats when this turned into a bigger job than the original repair was. The small red touch up area turned white, so I applied another coat big enough to cover the white from the first and so on and so on. Now I am down to bare wood starting from scratch, all for a friggin run of white dope. Isn't this fun?...lol