American Clay’s Research and Development Lab has found an All Purpose Taping, Topping and Texture product that will create problems with ACE Clay plasters.

• MURCO All Purpose Joint Cement M-100 Hypo: This product is manufactured by Murco Wall Products, Inc. The product is classified as an all-purpose joint compound for taping, topping and texturing wallboard. The water from the wet earth plaster is absorbed by the joint compound causing it to lose its structure, leaving a loose substrate. This can lead to bonding problems in the M-100 Hypo to the wall board. If you have used M-100 Hypo on your wallboard it should have a sealer or paint primer applied over it before using American Clay.

We are continually testing new and different substrates and applications with American Clay products, and will keep you updated on any problems we discover.

Tim White
Product Development
American Clay Enterprises, LLC