TTID - Dec 6, 2020 #1 Hi long time reader first time posting. I know hardiebacker does not need to be primed normally but when tanking a shower areas with the Mapei kit do I prime the boards or not? Thanks
Hi long time reader first time posting. I know hardiebacker does not need to be primed normally but when tanking a shower areas with the Mapei kit do I prime the boards or not? Thanks