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From: Mark Sanders <marksanders_at_sandmarks.net>
subject: [Paddlewise] A Small Project
Date: Tue, 28 Dec 2010 20:52:03 -0800
Day one of my Pygmy adventure!

http://www.sandmarks.net/PAT17HV.html

Mark Sanders
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From: Doug Lloyd <douglloyd_at_shaw.ca>
subject: RE: [Paddlewise] A Small Project
Date: Tue, 28 Dec 2010 21:31:43 -0800
Keep your fingers crossed Mark...though maybe not if there's fast-dry epoxy
on those digits. :-)

Doug

-----Original Message-----
From: owner-paddlewise_at_paddlewise.net
[mailto:owner-paddlewise_at_paddlewise.net] On Behalf Of Mark Sanders
Sent: December-28-10 8:52 PM
To: CKF Discussions; Paddlewise
Subject: [Paddlewise] A Small Project

Day one of my Pygmy adventure!

http://www.sandmarks.net/PAT17HV.html

Mark Sanders
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From: Dave Kruger <kdruger_at_pacifier.com>
subject: Re: [Paddlewise] A Small Project
Date: Wed, 29 Dec 2010 03:01:03 -0800
Mark,

You've got a great project ahead of you.  That will be a fun playboat for a 
guy your size.

First piece of advice:  get a carbide-blade-equipped scraper (hardware 
store) similar to this one:

http://www.amazon.com/Bahco-America-650-2-edge-Scraper/dp/B0015YNI3G

or, this (maybe too heavy duty): 
http://www.amazon.com/Bahco-665XXX-Premium-Ergonomic-Carbide/dp/B000288LP6

The scraper will allow you to remove all the excess resin and glass at 
those joints with minimal damage to the wood.  Do not use an orbital sander 
to remove the stuff -- it will cut into the adjacent uncoated wood and not 
affect the resin/glass as much.  After the scraper, use a sanding block (80 
grit on the pad), carefully, and remove the remaining stuff by hand.  Even 
being very careful, you'll probably sand away too much of the wood, which 
will result in cosmetic damage, but once the resin/glass is back on there, 
it will be plenty strong.  You will probably eventually decide to paint 
that part of the boat.

Second piece:  get onto West Coast Paddler and start a saga of your 
adventures.  That is a good group for helping folks with things like this.

Third:  if you get really stuck, call Pygmy.  they are really helpful.

Fourth:  put the resin and hardener under a cardboard box, with a 60 W 
trouble light to keep the stuff warm.   Cold epoxy resin does not flow 
into/onto the wood at all well, and will cauwe you a ton of grief.  I use a 
20" by 25" by 25" plywood box, with a 60W bulb in a fixture to store mine, 
summer and winter.  Dispensing is easier, and if you mix small amounts, the 
exotherm is not so aggressive that it will go off in the pot.

Fifth:  to understand that last paragraph, read the System Three Epoxy Book 
(online as a pdf file at the S3 site if it did not come with the kit).

Sixth:  glove up with nitrile gloves when working the resin, even if it is 
cured.  Sensitization is a small likelihood, but a real disaster if it 
happens.  Use a vapor mask when applying uncured resin -- kind painters 
wear (about $40 at better hardware stores).

Have fun!
-- 

Dave Kruger
Astoria, OR
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From: Doug Lloyd <douglloyd_at_shaw.ca>
subject: RE: [Paddlewise] A Small Project
Date: Wed, 29 Dec 2010 12:19:09 -0800
I prefer the Bacho products generally for their performance value,
especially the ones with the none-dominant hand grip handles as I get better
control (nothing worse than a scraper rocking laterally and gouging your
work) and obviously more downward pressure. I also flip or replace the
carbide before the edge gets too dull.

I still like the regular steel scrapers from Richard (et al) as they are
slightly convex and have their applications. The carbide scrapers don't have
as much clearance for detritus removal for large, rapidly-removed surfaces.


http://www.spesystems.co.nz/shop/div+idspeBRANDSdiv/RICHARD+TOOLS/Speciality
+Knives+%26+Scrapers/Richard+Heavy+Duty+Ergo-Grip+Paint+Scraper.html

Depending on price, the carbide is a good deal for epoxy jobs though I
sharpen my Richard scrapers quickly with a fine flat file easily enough and
find they clean-up easier.

Looking forward to hearing results Mark. Hopefully their won't be any
"splintered" PW/CKF postings from a bad encounter at Big Arch Rock...if you
catch my drift!

Well, I'm off to my shop now... 

Doug

--
Mark,

You've got a great project ahead of you.  That will be a fun playboat for a 
guy your size.

First piece of advice:  get a carbide-blade-equipped scraper (hardware 
store) similar to this one:

http://www.amazon.com/Bahco-America-650-2-edge-Scraper/dp/B0015YNI3G

or, this (maybe too heavy duty): 
http://www.amazon.com/Bahco-665XXX-Premium-Ergonomic-Carbide/dp/B000288LP6

The scraper will allow you to remove all the excess resin and glass at 
those joints with minimal damage to the wood.  Do not use an orbital sander 
to remove the stuff -- it will cut into the adjacent uncoated wood and not 
affect the resin/glass as much.  After the scraper, use a sanding block (80 
grit on the pad), carefully, and remove the remaining stuff by hand.  Even 
being very careful, you'll probably sand away too much of the wood, which 
will result in cosmetic damage, but once the resin/glass is back on there, 
it will be plenty strong.  You will probably eventually decide to paint 
that part of the boat.

Second piece:  get onto West Coast Paddler and start a saga of your 
adventures.  That is a good group for helping folks with things like this.

Third:  if you get really stuck, call Pygmy.  they are really helpful.

Fourth:  put the resin and hardener under a cardboard box, with a 60 W 
trouble light to keep the stuff warm.   Cold epoxy resin does not flow 
into/onto the wood at all well, and will cauwe you a ton of grief.  I use a 
20" by 25" by 25" plywood box, with a 60W bulb in a fixture to store mine, 
summer and winter.  Dispensing is easier, and if you mix small amounts, the 
exotherm is not so aggressive that it will go off in the pot.

Fifth:  to understand that last paragraph, read the System Three Epoxy Book 
(online as a pdf file at the S3 site if it did not come with the kit).

Sixth:  glove up with nitrile gloves when working the resin, even if it is 
cured.  Sensitization is a small likelihood, but a real disaster if it 
happens.  Use a vapor mask when applying uncured resin -- kind painters 
wear (about $40 at better hardware stores).

Have fun!
-- 

Dave Kruger
Astoria, OR
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From: Nick Schade <nick_at_guillemot-kayaks.com>
subject: Re: [Paddlewise] A Small Project
Date: Thu, 30 Dec 2010 10:33:22 -0500
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.
Nick



On Dec 29, 2010, at 6:01 AM, Dave Kruger wrote:
> 
> First piece of advice:  get a carbide-blade-equipped scraper (hardware store) similar to this one:
> 
> http://www.amazon.com/Bahco-America-650-2-edge-Scraper/dp/B0015YNI3G
> 

Nick Schade

Guillemot Kayaks
54 South Rd
Groton, CT 06340
USA
Ph/Fx: (860) 659-8847
http://www.guillemot-kayaks.com/
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From: Dave Kruger <kdruger_at_pacifier.com>
subject: Re: [Paddlewise] A Small Project
Date: Thu, 30 Dec 2010 09:28:58 -0800
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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From: Doug Lloyd <douglloyd_at_shaw.ca>
subject: RE: [Paddlewise] A Small Project
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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From: Bradford R. Crain <crainb_at_pdx.edu>
subject: Re: [Paddlewise] A Small Project
Date: Wed, 29 Dec 2010 14:51:22 -0800
Looking forward to all the pictures showing how you converted your
garage and house into a boat-building shop.
-- 
Bradford R. Crain

Quoting Mark Sanders <marksanders_at_sandmarks.net>:

> Day one of my Pygmy adventure!
>
> http://www.sandmarks.net/PAT17HV.html
>
> Mark Sanders
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