Trad Gang

Main Boards => PowWow => Topic started by: kennym on February 20, 2008, 07:59:00 PM

Title: lam ? for bowyers
Post by: kennym on February 20, 2008, 07:59:00 PM
Do you like your lams sanded with 36/40 grit or 60 grit better ? Or can you tell any difference in looks or adhesion?
 Thanks,Kenny
Title: Re: lam ? for bowyers
Post by: draco on February 20, 2008, 11:38:00 PM
I`ve only built about 35 bows,and thats over a 20yr. period. I`ve always bought my laminations so I dont know but I must admit I feel better about the rougher textured ones. Makes me think the glue is getting into more cracks and crevices for a stronger bond. Hope this helps some,and I`ll be ordering some in the near future as I`ve decided to try takedowns now.
Title: Re: lam ? for bowyers
Post by: Crooked Stic on February 21, 2008, 05:46:00 AM
I think 60 will work just fine. All the glass I have used was sanded to 80 and the glue on sticks to the surface. The wood on the other hand will get glue into all the sand lines pores etc and mat make it overall stronger. As far as looks go the glue again filling everything will giv a level appearance under glass.
Title: Re: lam ? for bowyers
Post by: PV on February 21, 2008, 06:21:00 AM
I've used 36 to 80 for grinding lams. The only difference I've seen is you get a better looking glue line with 80. My preference is 50.
Title: Re: lam ? for bowyers
Post by: Java Man on February 21, 2008, 08:15:00 AM
Kenny,

I use 60 grit.  Works wery well. Never see grinding lines in the finished product.
Title: Re: lam ? for bowyers
Post by: wingnut on February 21, 2008, 08:24:00 AM
The lam production shops I have been in all use 36 grit.  So that's what I use too.  With the "all natural" bows it gives a great bonding surface and with the glass bows too.

Mike
Title: Re: lam ? for bowyers
Post by: kennym on February 21, 2008, 09:12:00 PM
Thanks guys,fairly even split on opinion. I just looked at some I'd bought from 3Rivers some time back and they appear to be a bit smoother than 60 grit grind,think the ones from Binghams are a bit rougher.
 I appreciate your input!