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Building Tips and technical articles. => Paint and finishing => Topic started by: bruce finley on June 03, 2015, 06:57:45 AM

Title: KBS Clear great BUT.........don't let dope touch it.
Post by: bruce finley on June 03, 2015, 06:57:45 AM: So trying to do what should be a easy and small crash repair job on a Pathfinder profile arc that used dope for the under coats and used butyrate to attach the polyspan, then entire model was spray with one coat of KBS clear. When trying to reattach new polyspan with dope over the KBS, wherever the dope hit the KBS, blister city!! What a mess... ~^ ~^ ~^ Never again.

I'm assuming 2 part auto clears does NOT react the same way? Please advise
Title: Re: KBS Clear great BUT.........don't let dope touch it.
Post by: Randy Powell on June 03, 2015, 10:09:35 AM: Yea, same thing with catalyzed polyurethane. When doing repairs, you have to sand the urethane way back and not let fresh dope touch it or you get the crinkles.
Title: Re: KBS Clear great BUT.........don't let dope touch it.
Post by: bruce finley on June 04, 2015, 10:41:20 AM: Didn't know that about auto clears..........

Bruce
Title: Re: KBS Clear great BUT.........don't let dope touch it.
Post by: Avaiojet on June 05, 2015, 05:10:15 AM: Quote from: bruce finley on June 04, 2015, 10:41:20 AM
Didn't know that about auto clears..........

Bruce

If someone has found a way to cover an open bay wing without using any dope at all, I would like to know about that process. Especially if the material adheres as well as dope and the results are tight as a drum.

This would eliminate dope for any repair.
Title: Re: KBS Clear great BUT.........don't let dope touch it.
Post by: Allan Perret on June 05, 2015, 12:23:53 PM: Quote from: Avaiojet on June 05, 2015, 05:10:15 AM
If someone has found a way to cover an open bay wing without using any dope at all, I would like to know about that process. Especially if the material adheres as well as dope and the results are tight as a drum.

This would eliminate dope for any repair.
Polycrylic, Polyspan, heat shrink.
Title: Re: KBS Clear great BUT.........don't let dope touch it.
Post by: bruce finley on June 05, 2015, 12:40:10 PM: Quote from: Allan Perret on June 05, 2015, 12:23:53 PM
Polycrylic, Polyspan, heat shrink.

I used that technique on my repair. Issue is putting the dope back on around the edges of the polyspan and not letting the dope get into the clear.

OR

Are you saying use polycrylic on the open bays instead of dope??? :!
Title: Re: KBS Clear great BUT.........don't let dope touch it.
Post by: Allan Perret on June 05, 2015, 03:41:31 PM: Quote from: bruce finley on June 05, 2015, 12:40:10 PM

OR

Are you saying use polycrylic on the open bays instead of dope??? :!
Yes because Ajet wanted a process with no dope. Bradley Walker published an article about this, there was a link on the UHP website.
Title: Re: KBS Clear great BUT.........don't let dope touch it.
Post by: Avaiojet on June 05, 2015, 03:52:46 PM: Quote from: Allan Perret on June 05, 2015, 12:23:53 PM
Polycrylic, Polyspan, heat shrink.

Understandable, then you would apply polyspan dry?
Title: Re: KBS Clear great BUT.........don't let dope touch it.
Post by: Allan Perret on June 06, 2015, 08:49:16 AM: Quote from: Avaiojet on June 05, 2015, 03:52:46 PM
Understandable, then you would apply polyspan dry?
Yes, as it is also done with dope. Read the article.