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Main Boards => The Bowyer's Bench => Topic started by: Theolithic71 on January 04, 2017, 02:40:00 PM

Title: Sandpaper type for removing fiberglass
Post by: Theolithic71 on January 04, 2017, 02:40:00 PM

For profiling fiberglass limbs, is it better to use silicone carbide or aluminum  oxide sandpaper, or something else?  What is the largest grit for shaping?

Also, any good sources for spindle sanding sleeves?

Thanks much!!!

Title: Re: Sandpaper type for removing fiberglass
Post by: David Flanrey on January 04, 2017, 04:45:00 PM

Ted I usually use alum oxide but for no particular reason.  I buy my sleeves from Grizzly.  They have website that is very good.  Harbor Freight also has sleeves but quality is not very good.

Title: Re: Sandpaper type for removing fiberglass
Post by: Bowjunkie on January 04, 2017, 06:12:00 PM

For material removal and shaping I use 36-40 grit on my edge and drum sanders. I usually buy the belts and sleeves on the big auction site.

Title: Re: Sandpaper type for removing fiberglass
Post by: bamboo on January 04, 2017, 08:08:00 PM

http://www.supergrit.com/products/products_belts-zirconia

this is the stuff

Title: Re: Sandpaper type for removing fiberglass
Post by: Theolithic71 on January 04, 2017, 11:01:00 PM

Hmm.  I've never used the zirconia before.

Really just trying to figure out the easiest way to profile my limbs without a proper edge sander.  I'll be using a bench top belt and disc sander.  I also have a spindle sander.  Past experience  tells me you can save a Lotta frustration with some quality abrasive.

Thanks for the info fellows.

Title: Re: Sandpaper type for removing fiberglass
Post by: mikkekeswick on January 05, 2017, 03:07:00 AM

36 grit zirconium.
Glass trashes ali oxide in about one minute.

Title: Re: Sandpaper type for removing fiberglass
Post by: Robertfishes on January 05, 2017, 08:13:00 AM

I use Zirconium belts too. 36 grit or 50 grit to get close to the line, then I switch to a 120 grit to sand to the edge of the line. Zirc belts last longer than AO belts. I have been buying belts and spindles from Supergrit since 2009.

Title: Re: Sandpaper type for removing fiberglass
Post by: bamboo on January 05, 2017, 10:09:00 AM

Quote

Originally posted by Theolithic71:
Hmm.  I've never used the zirconia before.

Really just trying to figure out the easiest way to profile my limbs without a proper edge sander.  I'll be using a bench top belt and disc sander.  I also have a spindle sander.  Past experience  tells me you can save a Lotta frustration with some quality abrasive.

Thanks for the info fellows.

when I was building w/benchtop sanders--I would put a zero clearance insert on my tablesaw and a high tooth count carbide blade--then free hand 1/8" outside the limb layout lines to minimize the profile grinding necessary--in fact I still use my tablesaw --saves a lot of work!!be careful!!do not hurry or be greedy [try to be too close to your line]

    also zirc is head and shoulders above alum on glass!!

Title: Re: Sandpaper type for removing fiberglass
Post by: Theolithic71 on January 05, 2017, 10:46:00 AM

@Mike,

You're reading my mind!  Although I don't have a edge sander, I do have a nice table saw and plan to do just what you said.

Ok,zirconium!

Title: Re: Sandpaper type for removing fiberglass
Post by: bamboo on January 05, 2017, 11:32:00 AM

oh yeah--one more thing--face shield !!

Title: Re: Sandpaper type for removing fiberglass
Post by: Mad Max on January 05, 2017, 04:01:00 PM

Quote

Originally posted by bamboo:
 http://www.supergrit.com/products/products_belts-zirconia  

this is the stuff

x2

Title: Re: Sandpaper type for removing fiberglass
Post by: Theolithic71 on January 05, 2017, 10:31:00 PM

Thanks again guys.