Replies

1. 
   peter28 | Sep 06, 2007 03:05pm | #1

   dewat,

   Let me ask you a question; what sandpaper did you use and to what grit did you sand to?

   Peter

1. 
   dewat | Sep 06, 2007 06:12pm | #2

   Good question...I have collected large variety of s-paper over the years and it sometimes gets a little frustrating keeping track with the turning work.  I believe for these sycamore pieces I used the following sequence:

   100 grit Ekamant 'KBN B-O"

   150/180 Mirka

   240/320/400 Shop Basics 'Multi-roll' alum. oxide paper for turners

   400/600 Finkat 'Kovax'

   For me, sanding turnings to get any gouge marks out, and get a final smooth finish, has been a challenge.  But the above sequence, roughly, has finally produced pretty good results on most of my turning (maple, beech, ash, walnut, sweet gum, cherry).  And my turning has gotten pretty good/smooth so that I don't really have to sand as much as this might indicate; I just want to go thru all the grits, and start at 100 on only the rough spots.  Any ideas on paper selection and process would be greatly appreciated.

   Thanks!

1. 
   peter28 | Sep 11, 2007 03:57am | #3

   I was wondering if you used any black silicone carbide papers. I thought that may have been a possible root of your problem. How well do you clean the surface prior to applying the finish?

   Is it possible they are sap streaks? They can rear their heads after finishing.

   Peter

1. 
   dewat | Sep 11, 2007 11:48pm | #4

   I went back to check my sandpaper assortment...I do have a number of 'black' papers, but only a couple of them indicate 'silicone carbide'.  Are black papers usually silicone carbide?  Altho I don't think I used any of these on the sycamore, I might have...and here's what I have in the 'collection' of black papers:

   3M Wetordry Tri-M-ite

   Norton wet sanding 'Tufbak Gold' waterproof paper

   Mirka WPF CUK

   Sears silicone carbide

   Only the last one is obviously silicone carbide, and labeled as such.  Do you know if the others are?  The manufacturers seem to use alot of codes/jargon.  Should I avoid using any of these?

   Re cleaning before finishing, I used tack cloth.  Should I do more?

   Re sap streaks...the sycamore was turned pretty thin and I think it was pretty dried out.