Shower Waterproofing

Anyone ever used this as a tile backer instead of the foam core backer?

Requires same process of sealing the joints.

I have 5/8 drywall next to the shower so I need 5/8 tile backer.

www.goldbondbuilding.com

Gold Bond® eXP® Fire-Shield® Tile Backer is a gypsum backer board for tile applications in high-moisture areas and includes added fire resistance. Get started here.

thanks.