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Old March 25th 09, 04:35 PM posted to alt.home.repair
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Default Epoxy coating a round log

On Mar 23, 2:12*pm, Paul Oman wrote:
wrote:
Hi...any tips on applyingepoxyto a round log? *I do not need the
entire log coated as I am not worried about the underside.


Do I just lay the log on some plastic, pour theepoxyover it and let
gravity do its work?


I am in theepoxybusiness. What exactly are you trying to do? *- paul


The log is about 5 foot long and is only about 6 inches in diameter.
I actually split the log in half last night. It's for a bar as an arm
rest. It can now sit nice and flat and all I need is a smooth, hard
finish over the log. What's my best option?

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Old March 25th 09, 05:46 PM posted to alt.home.repair
Joe Joe is offline
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Default Epoxy coating a round log

On Mar 25, 10:35*am, wrote:

snip


The log is about 5 foot long and is only about 6 inches in diameter.
I actually split the log in half last night. *It's for a bar as an arm
rest. *It can now sit nice and flat and all I need is a smooth, hard
finish over the log. *What's my best option?


Polyester boat resin in a plastic film lined box is still your best
and easiest process. The lower resin viscosity will penetrate wood
fiber better than solvent diluted reactive resin systems. UV
resistance is a plus. What ever system you choose, read the labels and
know in advance what the hazards are in working with them. Amine type
hardeners in epoxies, for example, may cause dermatitis in some
people. Never had that problem myself, but have seen it in the
workplace. Good luck.

Joe

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Old March 25th 09, 07:14 PM posted to alt.home.repair
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Default Epoxy coating a round log

On Mar 25, 2:46*pm, Joe wrote:
On Mar 25, 10:35*am, wrote:

snip
The log is about 5 foot long and is only about 6 inches in diameter.
I actually split the log in half last night. *It's for a bar as an arm
rest. *It can now sit nice and flat and all I need is a smooth, hard
finish over the log. *What's my best option?


Polyester boat resin in a plastic film lined box is still your best
and easiest process. The lower resin viscosity will penetrate wood
fiber better than solvent diluted reactive resin systems. UV
resistance is a plus. What ever system you choose, read the labels and
know in advance what the hazards are in working with them. Amine type
hardeners in epoxies, for example, may cause dermatitis in some
people. Never had that problem myself, but have seen it in the
workplace. Good luck.

Joe


Thanks, Joe. Any particular type of Polyester boat resin? I called
one of my local boat supply stores and was told they have several
types available.

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Old March 25th 09, 07:17 PM posted to alt.home.repair
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Default Epoxy coating a round log

On Mar 25, 2:46*pm, Joe wrote:
On Mar 25, 10:35*am, wrote:

snip
The log is about 5 foot long and is only about 6 inches in diameter.
I actually split the log in half last night. *It's for a bar as an arm
rest. *It can now sit nice and flat and all I need is a smooth, hard
finish over the log. *What's my best option?


Polyester boat resin in a plastic film lined box is still your best
and easiest process. The lower resin viscosity will penetrate wood
fiber better than solvent diluted reactive resin systems. UV
resistance is a plus. What ever system you choose, read the labels and
know in advance what the hazards are in working with them. Amine type
hardeners in epoxies, for example, may cause dermatitis in some
people. Never had that problem myself, but have seen it in the
workplace. Good luck.

Joe


Thanks, Joe. Any articular type of Polyester Resin? I called my local
boating supply store and was told they have several different types.
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Old March 25th 09, 07:27 PM posted to alt.home.repair
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Default Epoxy coating a round log

wrote:
On Mar 23, 2:12 pm, Paul Oman wrote:
wrote:
Hi...any tips on applyingepoxyto a round log? I do not need the
entire log coated as I am not worried about the underside.


Do I just lay the log on some plastic, pour theepoxyover it and let
gravity do its work?


I am in theepoxybusiness. What exactly are you trying to do? - paul


The log is about 5 foot long and is only about 6 inches in diameter.
I actually split the log in half last night. It's for a bar as an arm
rest. It can now sit nice and flat and all I need is a smooth, hard
finish over the log. What's my best option?


I'm with Joe as far as epoxy or polyester goes.

As far as "smooth" goes, how rough is it now? Bark on or off? If on, heavy
and serrated or pretty smooth? It would help to know what species it is.

Assuming you only want to coat the now flat surface...

1. cover some thin strips of wood with plastic tape on one side

2. tack the strips - plastic side in - to your log so that they extend a
bit above it

3. pour polyester CASTING resin onto the surface

4. after the resin cures, remove the wood strips and clean up drips on
sides. You could minimize drips by sticking some modeling clay in voids
between the the log and strips of wood making up the dam.
__________________

If you want to coat more than the flat surface, one way you could do it
regardless of current smoothness is to sort of cast it by building a trough
affair of heavy but bendable mylar, suspending the log so there is maybe
1/8" between it and the mylar then filling the trough with catalyzed rein.
You could also make a trough by splitting a cardboard cylinder and lining it
with polyethylene plastic (plastic drop cloths are polyethylene). The
plastic should peel off easily once cured.

Either way would be a PITA.

NOTE: polyester resin heats up as it cures. The faster it sets (more
catalyst) the more heat.

Decent source for resins...
http://www.uscomposites.com/polyesters.html



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Old March 26th 09, 02:08 PM posted to alt.home.repair
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Default Epoxy coating a round log

The bark is off, the log is dry, and has been made pretty smooth.
Tree type is White Birch.
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