Hmmm, not sure and since this website is All Things Plants, unless someone here has any experience with it, I don't think this is the best place to find an answer.
Wait!
A quick Google search brought up a thread right here on ATP so go ahead and ask the original poster by adding a post to the bottom of that thread or contacting her directly by clicking on her user name and using the 'Send goldfinch4 a Tree-Mail' option.
The thread "QuikWall Art and Cement Tutorial" in
Garden Art forum
And
to ATP!
