Boards of gypsum plaster; Clay-based industrial sealant used to seal and prevent leakage from foundry mold components in metalcasting applications; Epoxy grout; Floor patching materials, namely, concrete sealers; Grout; Grouting compounds; Mold resistant drywall; Patches for repairing drywall; Plaster boards; Plaster stops for reinforcing plaster in the corners of plastered walls