Re: [bolger] Re: Epoxy Fumes?
>This is much the way I do it. I use thinned epoxy so I get a good
> Try wetting your wood with strait raka, putting your tape or cloth on,
> and working the bubbles out with your gloved fingers dipped in epoxy
> for lube.
penetration and soak. I normally lay out the cloth on a dry panel.
Stretch it and tape or staple temporarily. Then wet out with thin epoxy
(runs something like Peppermint Schnoops? <grin> ). This soaks through the
cloth and is almost entirely absorbed by the wood. Now let this set up for
a few hours maybe even over night before filling the weave with normal
epoxy.
Advantages are that it does a good job of penetrating the wood even if it's
out gasing as the day heats up. Also, it's too thin to "float" the glass.
These two issues are the major reasons for bubbles in the first place.
But, it will set up enough to hold down the glass nicely when you fill with
regular epoxy so it doesn't float.
I discovered this slowly as I was building the Tennessee. The last few
sheets required very little sanding compared the miserable job I did on the
first 4 or 5.
I will teach this method to any one wishing to learn. Of course you'll
have to come to CO, but hey, I have 50 or 60 sheets of MDO to cover.
Plenty to learn on. <grin>
Jeff
Try wetting your wood with strait raka, putting your tape or cloth
on, and working the bubbles out with your gloved fingers dipped in
epoxy for lube.
I do this now, and probably use 30% less epoxy. Very little runs
down the wood, very clean. fill the weave after the first bunch has
started to set.
on, and working the bubbles out with your gloved fingers dipped in
epoxy for lube.
I do this now, and probably use 30% less epoxy. Very little runs
down the wood, very clean. fill the weave after the first bunch has
started to set.
--- In bolger@y..., <boatbuilding@g...> wrote:
> I definantly use a mask when mixing any of the fillers.
>
> When I wet out the first time and to get the epoxy to soak in, I mix
> denatured alcohol to thin the epoxy and it doesn't take very much.
This
> advice is from RAKA and works very well in getting the epoxy to
penetrate.
> I do use a mask then as I'd probably get high from the alcohol
fumes. I
> know that the 1 or 2 ounces used to thin is really not a fire
hassard when
> spread out on a sheet of plywood, but I still unplug everything and
leave
> the big door open.
>
> RAKA is a 2 to 1 mix. When you get the 5 to 1 mixes, I suspect the
epoxy
> portion is diluted with an evaporant such as Formeldihyed which has
to
> evaporate out as it cures.
>
> By the way, the Home Depot smelled very bad and took longer to set
up solid
> and blushed badly. Ultimately though, it worked okay.
>
> Jeff
I definantly use a mask when mixing any of the fillers.
When I wet out the first time and to get the epoxy to soak in, I mix
denatured alcohol to thin the epoxy and it doesn't take very much. This
advice is from RAKA and works very well in getting the epoxy to penetrate.
I do use a mask then as I'd probably get high from the alcohol fumes. I
know that the 1 or 2 ounces used to thin is really not a fire hassard when
spread out on a sheet of plywood, but I still unplug everything and leave
the big door open.
RAKA is a 2 to 1 mix. When you get the 5 to 1 mixes, I suspect the epoxy
portion is diluted with an evaporant such as Formeldihyed which has to
evaporate out as it cures.
By the way, the Home Depot smelled very bad and took longer to set up solid
and blushed badly. Ultimately though, it worked okay.
Jeff
When I wet out the first time and to get the epoxy to soak in, I mix
denatured alcohol to thin the epoxy and it doesn't take very much. This
advice is from RAKA and works very well in getting the epoxy to penetrate.
I do use a mask then as I'd probably get high from the alcohol fumes. I
know that the 1 or 2 ounces used to thin is really not a fire hassard when
spread out on a sheet of plywood, but I still unplug everything and leave
the big door open.
RAKA is a 2 to 1 mix. When you get the 5 to 1 mixes, I suspect the epoxy
portion is diluted with an evaporant such as Formeldihyed which has to
evaporate out as it cures.
By the way, the Home Depot smelled very bad and took longer to set up solid
and blushed badly. Ultimately though, it worked okay.
Jeff
I have a very sensitive nose. There is some smell to epoxy, but it's
not strong or bad.
Re: silica. There is some dust gets in the air from mixing the wood
flour, it doesn't cause me any problems.
If I'm using glass bubbles, fibers, or silica, I put them in a zip
lock bag and do the mixing there. Not only does it mix faster, there
is almost no airborn dust created.
Getting it out can be a challenge, especialy the last little bit.
Turning the bag inside out and scraping it on the hull or a board
helps with that.
not strong or bad.
Re: silica. There is some dust gets in the air from mixing the wood
flour, it doesn't cause me any problems.
If I'm using glass bubbles, fibers, or silica, I put them in a zip
lock bag and do the mixing there. Not only does it mix faster, there
is almost no airborn dust created.
Getting it out can be a challenge, especialy the last little bit.
Turning the bag inside out and scraping it on the hull or a board
helps with that.
--- In bolger@y..., Vince and Mary Ann Chew <vachew@v...> wrote:
> Maybe I'm olfactoryally challenged, but I've mixed more than 25
gallons
> of Raka epoxy so far for my Dakota and haven't noticed any odor or
> fumes. What gets to me, though, is the silica which gets airborne
with
> the slightest breeze or jiggling. I put on a dust mask when I am
adding
> that stuff to the mix.
>
> Vince Chew
Maybe I'm olfactoryally challenged, but I've mixed more than 25 gallons
of Raka epoxy so far for my Dakota and haven't noticed any odor or
fumes. What gets to me, though, is the silica which gets airborne with
the slightest breeze or jiggling. I put on a dust mask when I am adding
that stuff to the mix.
Vince Chew
of Raka epoxy so far for my Dakota and haven't noticed any odor or
fumes. What gets to me, though, is the silica which gets airborne with
the slightest breeze or jiggling. I put on a dust mask when I am adding
that stuff to the mix.
Vince Chew