http://www.buildingmodeltrains.com/spray-foam-scenery-when-scuptamold-cant-save-you/ Examples and stories of building model trains. Wed, 31 Mar 2010 06:05:44 -0400 http://wordpress.org/?v=2.8.4 hourly 1 http://www.buildingmodeltrains.com/spray-foam-scenery-when-scuptamold-cant-save-you/comment-page-1/#comment-141 PaulMmn Mon, 23 Feb 2009 23:01:45 +0000 http://www.buildingmodeltrains.com/spray-foam-scenery-when-scuptamold-cant-save-you/#comment-141 The only issue I've had with Great Stuff is the way it cures-- it reacts to moisture in the air to speed the foaming and curing processes. That's why the can says to -lightly- mist the target area with water. . If you create too big a blob of the stuff, the center can't get enough moisture and won't cure overnight. But it'll sure cure over the next few months-- creating your very own earthquake, complete with cracks in the earth-- as moisture gradually sneaks its way into the interior. . If you need a big blob, you can try spritzing with water every inch or so, or treat the foam like a cake in the oven-- stick a knife in to see if it's 'done.' . --Paul E Musselman The only issue I’ve had with Great Stuff is the way it cures– it reacts to moisture in the air to speed the foaming and curing processes. That’s why the can says to -lightly- mist the target area with water.
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If you create too big a blob of the stuff, the center can’t get enough moisture and won’t cure overnight. But it’ll sure cure over the next few months– creating your very own earthquake, complete with cracks in the earth– as moisture gradually sneaks its way into the interior.
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If you need a big blob, you can try spritzing with water every inch or so, or treat the foam like a cake in the oven– stick a knife in to see if it’s ‘done.’
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–Paul E Musselman

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