Reply To: Best Hardening Agent To Support Shower Base Home › Forums › Public Forums › General Plumbing › Best Hardening Agent To Support Shower Base › Reply To: Best Hardening Agent To Support Shower Base 27 Sep 2003 at 9:03 pm #295209 maintenance-guyParticipant I’ve always laid a bed of mortar on a plastic sheet and laid another layer of plastic over it. It doesn’t have to be neat or fancy but makes removing the thing so much easier years later.
