Combining the workability you need for application with the durability you want for long-term performance, Certainteed Midweight Joint Compound is ideal for use in all phases of gypsum-board finishing: taping, finishing, skim coating, texturing, filling corner beads and trim, and concealing nail or screw dimples.

Ideal for all levels of finish (tape, bead, finish, texture), Certainteed Midweight is premixed, ready to use right out of the container, and dries quickly with minimal shrinkage. It offers excellent workability with a smooth and durable surface finish that resists abrasion.

Available in 4.5 gallon pail, or 3.5 and 4.5 gallon boxes.

Check out our other Certainteed Joint Compound products:

Certainteed Extra Lightweight Joint Compound
Certainteed Lightweight Joint Compound
Certainteed All-Purpose Joint Compound

Información técnica

Material: Vinyl-type formulation.

Color: Blanco

Emissions: Asbestos free. 

Cobertura: Approximately 8.3 gallons (31.4 liters) per 1,000 square feet (100 square meters); coverage will depend on number of beads and amount of trim.

Tiempo de secado: Thoroughly dry in approximately 24 hours. Drying times will vary with temperature and humidity (see GA-236).

Almacenamiento: Up to nine-month shelf life if protected from extreme heat and cold.

Certainteed Midweight is manufactured to conform to ASTM C475.

Instalación

Apply according to Gypsum Association publications GA-214 and GA-216.

Taping and Finishing Joints:
Paso 1: Using a taping knife (4–6 in.), generously apply joint compound to the surface you want to finish (tapered edge). Then press joint tape firmly into the compound, removing any excess material behind the tape and creating a good bond with the gypsum board. Allow compound to dry thoroughly.
Paso 2: Using a finishing knife, trowel or mechanical tool (8-10 in.), apply a fill coat of joint compound over embedded tape. Remove excess material by feathering the center and the edges of the joint. Allow compound to dry thoroughly.
Paso 3: Using a finishing knife, trowel or mechanical tool (10–12 in.), apply a thin coat of joint compound over Step Two at a width adequate to fill any voids or shallow spots. Remove excess material by feathering the center and the edges of the joint. Allow compound to dry completely before sanding or painting.

Finishing Inside Corners:
Using a steel finishing knife (4”– 6”), generously apply Certainteed Midweight to both sides of the inside corner. Fold joint tape along center crease and press firmly into center of the inside corner. Remove any excess material behind the tape and create a good bond with the gypsum board. Allow compound to dry thoroughly. Apply second coat to one side, allow to dry and apply to opposite side.
Allow compound to dry thoroughly before sanding or painting.

Fastener Heads and Trim:
Certainteed Midweight can be applied to fill corner beads and conceal fasteners (nail/screw dimples). A second coat should be applied when dry. Apply a third coat over the fasteners if needed.

Cleanup:
Certainteed Midweight washes off easily with warm water. Tools should be dried thoroughly to prevent rusting.

Lijado:
Sanding is not required between applications unless the work is rough. Sand lightly after Step three application is completely dry. If drysanding, use minimum 150-grit sandpaper. Avoid over-sanding, which can scuff gypsum board paper.

Skim Coating:
Certainteed Midweight can be used to skim coat gypsum board walls. A skim coat leaves a thin film of joint compound over the entire gypsum board surface, fills imperfections and eliminates texture differences between the gypsum board and the joint compound. Skim coating is recommended for rooms with critical lighting conditions.

Painting and Wallpapering:
Painting should not proceed until joint compound is thoroughly dry (See GA-236). For best results, a good quality gypsum board primer should be applied, in accordance with manufacturer’s instructions, before painting or wallpapering.

Texturing:
Certainteed Midweight can also be used to texture walls and ceilings. For best results, apply a high-quality gypsum board primer before texturing, making sure to follow the manufacturer’s instructions. Joint compound can be applied (up to 1/4 in. thick) with a roller, sponge, brush or trowel to create the desired effect. Paint over when dry.

Detalles de la garantía

Debido a que los métodos y las condiciones de aplicación y almacenamiento, tales como la temperatura, la humedad y la dilución en exceso están fuera de nuestro control, CertainTeed, Gypsum Inc. (CertainTeed) no se hará responsable de que el producto no quede bien si no se usa y almacena de acuerdo como lo indican las instrucciones, las especificaciones y los estándares aceptados de procedimiento inherentes a la aplicación en muros de mampostería; o bien, si la persona que lo instala no tiene en cuenta las condiciones climáticas y de trabajo de forma razonable. Sin embargo, si el producto resulta defectuoso, la responsabilidad máxima de CertainTeed se limitará solo al reemplazo del material o al reembolso del precio de compra original. CertainTeed no será responsable de ningún otro costo o gasto. Estos serán la garantía exclusiva y los recursos proporcionados por CertainTeed, incluidas, entre otras, las garantías implícitas de comerciabilidad, la idoneidad para el uso y la idoneidad para un propósito particular. Todas las reclamaciones deberán ser presentadas por escrito a CertainTeed dentro de los treinta días siguientes a la fecha del descubrimiento. Las leyes estatales o federales pueden proporcionar derechos además de esta garantía limitada que no pueden ser modificados ni excluidos.

Información de sostenibilidad

CertainTeed se enorgullece de ofrecer las mejores soluciones para que los espacios en los que trabajamos, vivimos y jugamos sean más saludables y seguros. Esto significa ofrecer productos de alto rendimiento que crean mejores condiciones de vida.

Nuestros productos mejoran la eficiencia energética del inmueble y reducen el consumo de energía durante la vida útil de la estructura. Como resultado, ayudan a conservar los recursos naturales de energía no renovables, a disminuir la dependencia de los hidrocarburos y a reducir las emisiones de gas que contribuyen al efecto invernadero.

El compromiso constante de CertainTeed con la sostenibilidad en la fabricación se apega a los principios de ecología industrial, gestión de agua y energía, y reducción de desechos.

Ecomedes

La plataforma de productos sostenibles Ecomedes le permite acceder rápidamente a la información y las certificaciones de productos que necesite, calcular las contribuciones a LEED y otros Green Building Rating System, y crear y guardar un grupo de productos utilizando la función de proyecto. La información es de libre acceso y siempre está actualizada.

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