| abstract |
The joint material system includes a cure-suppressed, pre-wet, curable pre-formed joint material and a cure initiator. A cure-suppressed, pre-wet, cure-type joint material comprises a pre-prepared, cure-type joint base and a calcium-free phosphate cure inhibitor that prevents chemical hydration of the gypsum component of the cure joint material. including. The joint material base does not contain calcium carbonate. The curing initiator includes alum to resume the chemical hydration reaction. |