1 Squeezing out excess mortar helps reduce buildout and enhance waterproofness of joint.
2 Hybrid system includes GoBoard or GoBoard Pro combined with other substrate types that require waterproofing with GoBoard Membrane. For example, the joint between GoBoard or GoBoard Pro and drywall can be waterproofed by simply extending GoBoard Membrane onto GoBoard by at least 2 inches.
3 Remove excess thin-set mortar in areas being sealed with GoBoard Sealant or GoBoard Pro Sealant. Extend beyond joints by at least 2-in with a film application of at least 1/32-in that completely covers GoBoard Membrane and accessories. All areas being exposed to flood test need to be properly sealed as described. If not flood testing same day, follow thin-set mortar manufacturers instructions regarding when flood test can be performed.