Abstract: Spackling and joint compounds with lower shrinkage, better sanding, and fast drying. Methods for repairing walls and ceiling in which the present spackling compound is applied to a variety of substrates, including wallboard, plaster and/or wood. Methods for finishing seams in wall construction in which the spackling/joint compound is used for finishing the seams.

Abstract: A method of making a setting type compound by injecting an activator compound into a plaster compound wherein the activator compound tube is coaxial and within the plaster compound tube, each at the same flowrate, the same pressure and the same viscosity. The cross sectional transverse areas of an annulus containing the plaster compound and the hole in the annulus containing the activator compound are the same.

Abstract: A ready-mixed setting type joint compound in which formation of gypsum seeds has been inhibited. A method for controlling a setting reaction by mixing a ready-mixed setting type joint compound with one or more metal ion control agents comprising aminopolycarboxylic acid and/or a salt thereof, and further mixing the setting type joint compound with one or more non-calcium phosphate compounds. The method may further comprise mixing the setting type joint compound with a set activator obtained by blending together a first set activator including a cadmium compound, lead compound and/or zinc compound and a second set activator including a ferrous compound, aluminum compound and/or manganese compound.

Abstract: A high solids, sprayable, fast drying, ready-mixed setting-type joint compound comprising a blend of a joint compound mixture comprising: joint compound mixture ingredients comprising: calcium sulfate hemihydrate (e.g. US Gypsum's HYDROCAL C-Base), a chelating agent, and water; and an activator mixture, wherein the activator mixture comprises: activator mixture ingredients comprising: inert filler, set accelerator, and water, wherein a weight ratio of joint compound mixture:activator mixture is 1:1 to 100:1, wherein the activator mixture viscosity is the same as the joint compound mixture viscosity plus or minus 50 percent, and wherein the joint compound has about 55 to about 80 wt. % solids and a viscosity of 2,500-28,000 cps.

Abstract: Spackling and joint compounds with lower shrinkage, better sanding, and fast drying. Methods for repairing walls and ceiling in which the present spackling compound is applied to a variety of substrates, including wallboard, plaster and/or wood. Methods for finishing seams in wall construction in which the spackling/joint compound is used for finishing the seams.

Abstract: An identifiable wallboard joint tape is provided and includes a web of tape incorporated with an identifier such that the tape is visible under UV light and visually distinguishable from the surrounding wallboard joint and joint compound.

Abstract: A joint compound including calcium sulfate hemihydrate and/or at least one filler, wherein a total amount of the at least one filler and/or calcium sulfate hemihydrate is at least about 50 wt % of the joint compound on a dry (water-free) basis, preferably the filler comprises calcium carbonate, calcium sulfate dihydrate, or calcium sulfate anhydrite, or a mixture thereof; binder at up to about 15 wt % of the joint compound on a dry basis; polymer thickener at up to about 3 wt % of the joint compound on a dry basis; plasticizer dedusting agent at about 0.01 to about 3 wt % of the joint compound on a dry (water free) basis; and an additive up to about 10 wt % of the joint compound on a dry basis.

Abstract: Embodiments of a system and a method for continuously manufacturing a joint compound can be used to produce ready mix joint compound. The system includes means for continuously mixing wet and dry joint compound ingredients together and means for homogenizing multiple volumetric units of mixed joint compound to reduce variation in at least one joint compound material property (e.g., viscosity) across multiple successively produced volumetric units of mixed joint compound (relating to standard commercial packaging sizes for joint compound, such as five-gallon pails, for example) relative to the material property of the respective multiple volumetric units before passing through the means for homogenizing.

Abstract: Joint compounds and spackling compounds which comprise a sanding indicator, the compounds displaying a first color at the surface upon drying/hardening. Methods for finishing a substrate or patching a substrate, the methods comprise applying the joint compound which comprises the sanding indicator and/or the spackling compound which comprises the sanding indicator and sanding the dried/hardened compound until the first color is removed. Accessory products which comprise at least one sanding indicator and methods for making joint compounds and spackling compounds comprising the sanding indicator.

Abstract: A ready-mixed setting type joint compound in which formation of gypsum seeds has been inhibited. A method for controlling a setting reaction by mixing a ready-mixed setting type joint compound with one or more metal ion control agents comprising aminopolycarboxylic acid and/or a salt thereof, and further mixing the setting type joint compound with one or more non-calcium phosphate compounds. The method may further comprise mixing the setting type joint compound with a set activator obtained by blending together a first set activator including a cadmium compound, lead compound and/or zinc compound and a second set activator including a ferrous compound, aluminum compound and/or manganese compound.

Abstract: A kit for preparing a set activator blend and a method for controlling a setting reaction with the set activator blend of a setting joint compound, in particular of a ready-mixed setting joint compound, the method including: 1) blending together a first set activator including a cadmium compound, lead compound and/or zinc compound and a second set activator including a ferrous compound, aluminum compound and/or manganese compound, and thereby obtaining a set activator blend; and 2) mixing the set activator blend with the setting joint compound and thereby controlling the setting reaction of the setting joint compound.

Abstract: A joint compound system is provided including a main container of base joint compound; and an additive container isolated from the base joint compound and housing at least one and preferably multiple additive packages constructed and arranged so that the additive packages are protected from exposure to moisture prior to their ultimate mixing with the base joint compound.

Abstract: A method of making an identifiable gypsum-based building product, includes incorporating a suitable amount of an optically identifiable marker into the product to be sensed by a conventional detecting device; applying the product with the marker in a conventional manner in the course of building construction, creating a finished building product; and analyzing the finished building product and optically detecting the presence of the marker in real time onsite.

Abstract: An identifiable wallboard joint tape is provided and includes a web of tape incorporated with an identifier such that the tape is visible under UV light and visually distinguishable from the surrounding wallboard joint and joint compound.

Abstract: A container and lid assembly is provided, including a main container defining a chamber with a base joint compound; and a container lid constructed and arranged for closing the main container, the lid having a main hinged lid door openable to provide access to the chamber; and at least one supplemental lid door hinged to the lid and openable to a supplemental compartment, the supplemental compartment being isolated from the chamber.

Abstract: A joint compound system is provided including a main container of base joint compound; and an additive container isolated from the base joint compound and housing at least one and preferably multiple water soluble additive packages constructed and arranged so that the additive packages are protected from exposure to moisture prior to their ultimate mixing with the base joint compound.

Abstract: A joint compound system is provided including a main container of base joint compound; and an additive container isolated from the base joint compound and housing at least one and preferably multiple additive packages constructed and arranged so that the additive packages are protected from exposure to moisture prior to their ultimate mixing with the base joint compound.

Abstract: A method of making an identifiable gypsum-based building product, includes incorporating a suitable amount of an optically identifiable marker into the product to be sensed by a conventional detecting device; applying the product with the marker in a conventional manner in the course of building construction, creating a finished building product; and analyzing the finished building product and optically detecting the presence of the marker in real time onsite.

Abstract: A joint compound system is provided including a main container of base joint compound; and an additive container isolated from the base joint compound and housing at least one and preferably multiple water soluble additive packages constructed and arranged so that the additive packages are protected from exposure to moisture prior to their ultimate mixing with the base joint compound.