Comment by Joe Townsley on October 16, 2008 at 8:14pm

No problems using a gypsum based material with a portland based material?

Comment by Tajmawall, Wayne Sellon on October 16, 2008 at 8:22pm

The Flex-C-Ment primer will bond to almost any substrate.
I have put it over gypsum many times

Comment by Joe Townsley on October 16, 2008 at 11:44pm

So what is the advantage in using a gypsum based scratchcote instead of the classic portland based scratchcote if you're just gonna put the lightweight portland based cement over it anyway? I can see the advantage if that gypsum based product is the final touch.

Comment by Tajmawall, Wayne Sellon on October 17, 2008 at 8:28am

Well It's inexpensive, and you can hop it up so that you can form a hard substrate, and go over it in a very short time saving time.

Comment by Nathan Giffin Vertical Artisans on October 21, 2008 at 8:51am

Also it is very light and sets up ( as Wayne said) , very fast so time is not wasted. P.S. don.t forget to to scratch cote it before it sets up.

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