Before you do any plaster patching, rid the rooms of any residual lead. If you try to vacuum up chips or dust, you must use a special HEPA filter-equipped vacuum cleaner. Some tool rental stores rent ...

IT has been shown by Ridge 1 that setting-temperature exerts a profound effect on the structure of set gypsum plaster. He postulated that this change in structure would be accompanied by changes in ...

THE initial thickening of slurries of hemi-hydrate type gypsum plasters has been considered by many workers to be due to a colloidal mechanism, whereas the further hardening and final setting have ...

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