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green scotchbrite *** Please clarify for me***

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bjohnson(at)satx.rr.com
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Posted: Tue Feb 07, 2006 8:38 am Post subject: green scotchbrite *** Please clarify for me***

Can someone just cut to the chase and tell me, the 6061t-6 parts on my Sonex

that I have buffed with green scotchbright pad, (it says "type S" on the pad

I cannot read the numbers though) Are those parts trash now??? How will it

screw it up, and is there anything I can do to fix it????  I'm about to

finish riveting the layers of my spar together which were scuffed with this

pad, then painted with NAPA self etching primer....



The 2 documents really say nothing about the above issue....



Thanks!



-Bruce Johnson



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moorecomp(at)yahoo.com
Guest

Posted: Tue Feb 07, 2006 10:37 am Post subject: green scotchbrite *** Please clarify for me***

Bruce,



I have poured through the 3M website, and it appears

that the green pads are "scrubbing pads" and the

maroon pads are "abrasive pads". The 7447 maroon pads

are coated with aluminum oxide abrasive and cut the

same as aluminum oxide "sandpaper". The green pads are

not coated and are simply synthetic fiber and are for

cleaning, like a common dish scrubber. That would

explain why Gary had so much "green dust". I have two

links to the 3M website, for the 2 different pads.



Green Scrubbing Pads  -  http://tinyurl.com/byss3



Maroon Abrasive Pads  -  http://tinyurl.com/7lnpr



When I worked for a large regional airline, we only

used the 7447 pads.



Hope this clears it up. You should be fine.



Craig Moore

A&P

701 Builder wannabe



--- B Johnson <bjohnson(at)satx.rr.com> wrote:



[quote] 

 <bjohnson(at)satx.rr.com>

 

 Can someone just cut to the chase and tell me, the

 6061t-6 parts on my Sonex

 that I have buffed with green scotchbright pad, (it

 says "type S" on the pad

 I cannot read the numbers though) Are those parts

 trash now??? How will it

 screw it up, and is there anything I can do to fix

 it????  I'm about to

 finish riveting the layers of my spar together which

 were scuffed with this

 pad, then painted with NAPA self etching primer....

 

 The 2 documents really say nothing about the above

 issue....

 

 Thanks!

 

 -Bruce Johnson

 

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bjohnson(at)satx.rr.com
Guest

Posted: Tue Feb 07, 2006 1:32 pm Post subject: green scotchbrite *** Please clarify for me***

A bit more research I cannot find my exact Scotchbrite on the 3m website, I

got it from a surplus place so God knows if it's still in existence, but the

original post referenced from the "luscomb association" or sum such says

"type s no good" and that's what I actually have.  It's more of a

gray-green.. it very well could be gray, in which case I think the abrasive

is "silicon carbide"... 



It is definitely NOT the green scrubby clean you sink thing..



K, now I get to research silicon carbide.... or relax and have a homebrew...

Hrm.. have to think on that one.



-Bruce



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