RE: [Paddlewise] A Small Project

From: Doug Lloyd <douglloyd_at_shaw.ca>
Date: Thu, 30 Dec 2010 23:06:33 -0800
Carbide stays sharper longer whereas high speed steel is easily sharpened,
can be readily sharped t the angle suitable to the application, sharpens
sharper than carbide but, doesn't hold long. Carbide is usually
professionally sharpened. On some high speed steel you can also get a good
burr on. I use steel for vigorous applications. Pick your weapon...keep it
sharp. And use what you are used to if it's working for you.

Hippy New Year to all you long-haired greybeards...

DL


.

On 12/30/2010 7:33 AM, Nick Schade wrote:
> I have always been underwhelmed by the carbide scrapers. Each time I pick
mine up I think, this is going to be just the ticket for the job and I
usually put it back down and grab a steel scraper instead. I found these
http://www.amazon.com/Paint-scraper-heavy-silent-remover/dp/B0007UO0ZY/ to
be very good. I can get them sharper than the carbide with a file. They will
pull up a nice smooth shaving in epoxy. I use the carbide when there is
glass in the mix because they don't dull as quickly.

I'm with Nick on this, mostly, despite my suggestion Mark get a carbide 
scraper.  Probably Nick and I came up "old school," and learned how to 
maintain a steel scraper's edge(s), warping it when needed to fair in a 
transition, etc.  But, like he says, any resin that has glass or silica in 
it will dull a steel scraper edge very quickly.

Mark, you really need both.  Once you get the hang of using scrapers, they 
will really speed up working with cured epoxy. They also look cool in
photos.

-- 
Dave Kruger
Astoria, OR
.
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Received on Thu Dec 30 2010 - 23:06:41 PST

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