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Posted by DanG on January 27, 2007, 5:46 pm
If you are really going to use large quantities, get into the
commercial size stuff.
http://greatstuff.dow.com/greatstuff/pro/applicators.htm
This system requires that you have cleaner for the gun. The
advantage is that you do not use up the entire can. I buy the
door and window product to avoid collateral damages. Triple
expanding can be deadly depending on the situation.
--
~~~~~~~~~~~~~~~~~~~~
DanG
A live Singing Valentine quartet,
a sophisticated and elegant way to say I LOVE YOU!
valentine@okchorale.org (local)
http://www.singingvalentines.com/ (national)
show/hide quoted text
>I need to use a bunch of this product this spring to patch up
>some holes in my cabin where the carpentryship wasn't exact. I
>notice they have two formulas, one expanding more than the other
>one.
> Tips on usage appreciated.
> In some places, the gap is up to an inch. Would I be better to
> poke shredded fiberglass in there using a dowel as a poker, then
> seal it with Great Stuff? Or even seal it with a nice shade of
> caulking? Or fill it mostly with Great Stuff, then smooth or
> cut smooth, then caulk over for a nice finish?
> Probably going to use a couple of dozen cans in all. It depends
> on how much I fill up with shredded glass first, or just use the
> foam for the entire void. What would you do?
> Steve
>
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Posted by SteveF on January 27, 2007, 6:26 pm
>I need to use a bunch of this product this spring to patch up some holes in
>my cabin where the carpentryship wasn't exact. I notice they have two
>formulas, one expanding more than the other one.
> Tips on usage appreciated.
> In some places, the gap is up to an inch. Would I be better to poke
> shredded fiberglass in there using a dowel as a poker, then seal it with
> Great Stuff? Or even seal it with a nice shade of caulking? Or fill it
> mostly with Great Stuff, then smooth or cut smooth, then caulk over for a
> nice finish?
> Probably going to use a couple of dozen cans in all. It depends on how
> much I fill up with shredded glass first, or just use the foam for the
> entire void. What would you do?
> Steve
There's three types - Cracks/Gaps in the red can, Big Gaps in the black can
and Doors/Windows in the blue can.
I've found if you fill a big area with the Big Gaps stuff (2" x 5" x 22") it
cures and then over the next couple of weeks shrinks and leaves an 1/8" -
1/4" gap all the way around. The Door/Windows version cures to a harder
skin than the Cracks/Gaps plus doesn't push very hard against things so I've
settled on that kind.
For air sealing, lay a bead down all the way in and let it expand. Put in
less than you think you need until you get the hang of how much it expands.
Put some insulation on top of that if you want after it cures.
For void filling, I've found the best bet is to fill as much as possible
with a piece of XPS foam board (the pink stuff at Home Depot). Cut a piece
so there is a 1/4" gap all the way around, put it in the gap and foam around
it. Nothing magic about the 1/4" number - that's the size of the dispensing
tube.
Comes off your skin easily with acetone. Of course, acetone isn't
particularly good for you so wear thin gloves if you got 'em. My work
clothes have paint, caulk and glue on them so I can't tell if I ever got any
GS on it.
When in doubt, read the instructions on the can.
Steve.
If you are just going for air sealing
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>
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Posted by Steve Barker on January 27, 2007, 9:58 pm
One thing to remember, be prepared to use the whole can once you begin.
You'll never come back to a partial can and have it work.
--
Steve Barker
show/hide quoted text
>I need to use a bunch of this product this spring to patch up some holes in
>my cabin where the carpentryship wasn't exact. I notice they have two
>formulas, one expanding more than the other one.
> Tips on usage appreciated.
> In some places, the gap is up to an inch. Would I be better to poke
> shredded fiberglass in there using a dowel as a poker, then seal it with
> Great Stuff? Or even seal it with a nice shade of caulking? Or fill it
> mostly with Great Stuff, then smooth or cut smooth, then caulk over for a
> nice finish?
> Probably going to use a couple of dozen cans in all. It depends on how
> much I fill up with shredded glass first, or just use the foam for the
> entire void. What would you do?
> Steve
>
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Posted by SteveF on January 27, 2007, 10:31 pm
> One thing to remember, be prepared to use the whole can once you begin.
> You'll never come back to a partial can and have it work.
> --
> Steve Barker
Good point. Also, I've had a couple of cans that wouldn't work at all so
buy a couple extra if you live 15 miles from the nearest hardware store like
I do.
Steve.
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Posted by Steve B on January 27, 2007, 10:46 pm
show/hide quoted text
>> One thing to remember, be prepared to use the whole can once you begin.
>> You'll never come back to a partial can and have it work.
>> --
>> Steve Barker
> Good point. Also, I've had a couple of cans that wouldn't work at all so
> buy a couple extra if you live 15 miles from the nearest hardware store
> like I do.
> Steve.
Yeah, I found a couple of partially used cans in the shed from the previous
owner, and no way to get any more out of that spout. I figured getting it
all ready and using whole cans start to finish. It is 7.2 miles down to the
hardware store from my cabin, not bad. The next settlement is 30 miles from
that store.
I'm ending up with a small hardware store up there, but every time I can go
scrounge something and save a trip to town, I have to high five the nearest
tree limb.
Steve
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>some holes in my cabin where the carpentryship wasn't exact. I
>notice they have two formulas, one expanding more than the other
>one.
> Tips on usage appreciated.
> In some places, the gap is up to an inch. Would I be better to
> poke shredded fiberglass in there using a dowel as a poker, then
> seal it with Great Stuff? Or even seal it with a nice shade of
> caulking? Or fill it mostly with Great Stuff, then smooth or
> cut smooth, then caulk over for a nice finish?
> Probably going to use a couple of dozen cans in all. It depends
> on how much I fill up with shredded glass first, or just use the
> foam for the entire void. What would you do?
> Steve
>