My experience with the low expanding type is it's really soft and crumbles if you touch it the wrong way. The original is a far superior product, imho. The expansion should not pose a problem, and is actually beneficial, if used properly.
Note, you must hold the can upside-down when spraying it.
~ ToolGuy ~
Save money on tools at MyToolbox.net
Last edited by ToolGuy; 12-03-2007 at 01:51 PM.