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Building Tips and technical articles. => Paint and finishing => Topic started by: James Mills on February 05, 2011, 10:34:58 PM

Title: Poly span
Post by: James Mills on February 05, 2011, 10:34:58 PM

I put poly span on my SV 11 wing tonight and got to aggressive with the heat gun and have a couple of small holes I need to repair.  There is no dope on the open bays as of yet.  Should I patch the holes with small pieces of silk span or small pieces of poly span?

Thanks,

James

Title: Re: Poly span
Post by: Clint Ormosen on February 06, 2011, 09:36:48 AM

I've made the same mistake. If the holes are small, just use silkspan. It's easier to blend in torn pieces of silkspan than cut pieces of Polyspan anyway. However, if you've got holes of 1 sq in or bigger, the polyspan patch would be stronger.

Title: Re: Poly span
Post by: john e. holliday on February 09, 2011, 09:12:29 AM

If you look you will see the patch I had to put on.  It is a scrap peice of Poly span.   After several coats of dope you can hardly feel the edges.  I am shooting for an * point finish on this one.  Will have pics of the pilot later.   H^^

Title: Re: Poly span
Post by: wwwarbird on February 09, 2011, 06:20:40 PM

 Use silkspan, it will be much easier to feather and blend in with a few coats of clear and a little sanding.

Title: Re: Poly span
Post by: Clint Ormosen on February 09, 2011, 10:36:04 PM

Quote from: john e. holliday on February 09, 2011, 09:12:29 AM

If you look you will see the patch I had to put on.  It is a scrap peice of Poly span.   After several coats of dope you can hardly feel the edges.  I am shooting for an * point finish on this one.  Will have pics of the pilot later.   H^^

Doc, what is a * point finish?

Title: Re: Poly span
Post by: Bill Little on February 09, 2011, 11:35:02 PM

Quote from: Clint Ormosen on February 09, 2011, 10:36:04 PM

Doc, what is a * point finish?

LOL!!!!  Best I can figure is that the ol' Doc hit the "shift key" when he was aiming at the "8".  LOL!!!!

Big Bear

Title: Re: Poly span
Post by: Clint Ormosen on February 10, 2011, 08:40:34 AM

Quote from: Bill Little on February 09, 2011, 11:35:02 PM

LOL!!!!  Best I can figure is that the ol' Doc hit the "shift key" when he was aiming at the "8".  LOL!!!!

Big Bear

Maybe. But I've seen Doc's planes. I'm pretty sure he can do a little better than *. oops, I mean 8.

Title: Re: Poly span
Post by: Bill Little on February 10, 2011, 11:13:19 AM

Quote from: Clint Ormosen on February 10, 2011, 08:40:34 AM

Maybe. But I've seen Doc's planes. I'm pretty sure he can do a little better than *. oops, I mean 8.

Doc deals with the old adage of "self depreciation".  I suspect he's read too many of Randy Powell's posts!  His planes do look a lot better than HE lets on.  **)  **)  (PE**)  CLP**

Bill

Title: Re: Poly span
Post by: john e. holliday on February 12, 2011, 09:57:31 AM

Bill, you have not seen  my planes in person.   Ask about the Nobler that was hidden behind the bush at VSC one year.   H^^