With a 30% lighter weight than conventional all-purpose joint compound products, Rapid Coat® Lightweight Joint Compound is ideal for use in all phases of gypsum board finishing: taping, finishing, skim coating, filling corner beads and trim, and concealing nail or screw dimples.

Designed for professional use, Rapid Coat is premixed, ready to use right out of the container, and dries quickly with minimal shrinkage. it offers extremely smooth finish with fewer passes and sands easily.

Available in 4,5 gallon pail, or 3,5 and 4,5 gallon boxes.

Check out our other Rapid Coat Joint Compound products:

Composé à joints ultra léger Rapid CoatMD
Composé à joints de poids moyen Rapid CoatMD
Rapid Coat® All-Purpose Joint Compound

Présentation du produit

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Caractéristiques techniques

Information technique

Matériau : Vinyl-type formulation.

Couleurs : White and Yellow

Emissions: Asbestos free. 

Couverture : Approx. Boîte de 9 Gal. (34 L) per 1 000 ft2 (100 m2) coverage will depend on number of beads and amount of trim.

Temps de séchage : Approx. 4 hours to harden; thoroughly dry in approx. 24 hours. Drying times will vary with temperature and humidity (See GA-236).

For interior use only. Maintain a minimum 55° F (13° C) working temperature during application and drying. For optimum drying, maintain room temperature between 68˚–77˚ F (20˚–25˚ C) and provide adequate ventilation.

Stockage : Up to 9 months if protected from extreme heat and cold. Maintain storage temperature above 32˚ F (0˚ C).

Manufactured to conform to ASTM C475/C475M.

Caractéristiques techniques


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

Taping and Finishing Joints:
La première étape : 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.
Deuxième étape : 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.
Troisième étape : 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 Rapid Coat® Lightweight 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:
Rapid Coat® Lightweight 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.

Rapid Coat® Lightweight washes off easily with warm water. Tools should be dried thoroughly to prevent rusting.

Ponçage :
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:
Rapid Coat® Lightweight 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.

Rapid Coat® Lightweight 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.

Détails Garantie

Étant donné que les méthodes et les conditions d’application et de stockage, telles que la température, l’humidité et la dilution excessive sont hors de notre contrôle, CertainTeed Gypsum, Inc. (CertainTeed) ne sera pas responsable de la défaillance de ce produit lorsqu’il n’est pas utilisé et stocké conformément aux instructions et spécifications et aux normes de procédure acceptées inhérentes à l’application de cloisons sèches; ou lorsque l’utilisateur ne tient pas raisonnablement compte des conditions météorologiques et de travail défavorables. Cependant, si ce produit s’avère défectueux, la responsabilité maximale de CertainTeed sera limitée au remplacement du matériel défectueux uniquement ou au remboursement du prix d’achat initial. CertainTeed ne sera pas responsable des autres coûts ou dépenses. Il s’agit de la garantie exclusive et des recours fournis par CertainTeed, y compris, sans s’y limiter, les garanties implicites ou la qualité marchande, l’aptitude à l’emploi et l’aptitude à un usage particulier. Tout recours en garantie doit être soumis par écrit à CertainTeed dans les 30 jours suivant la découverte du problème. Les lois nationales ou fédérales peuvent prévoir des droits en plus de cette garantie limitée qui ne peuvent être modifiés ou exclus.

Information sur la durabilité écologique

CertainTeed Gypse s'engage envers la durabilité. Situés dans toute l'Amérique du Nord, nos sites de production de produits en gypse couvrent la demande régionale en matériaux et respectent des règles éthiques responsables accordant une grande importance à l'environnement, à la préservation des ressources naturelles, au recyclage et à la gestion des déchets. Nous continuons à rechercher des moyens de réduire l'impact de notre industrie sur l'environnement tout en satisfaisant aux demandes des clients de solutions écologiquement durables qui fournissent confort, protection et performances.

CertainTeed is committed to sustainability and transparency.  CertainTeed Gypsum created 3rd party Type III product and plant specific Environmental Product Declarations (EPDs) for many of our products, including 5/8” Type X, 5/8” M2Tech Type X, ½” Type C, 5/8” Type C, 5/8” GlasRoc Sheathing, 5/8” Extreme Abuse, and 5/8” Extreme Impact.  These Type III EPDs are certified by UL Environment.

CertainTeed Gypsum also has Health Product Declarations (HPDs) for all gypsum board products; many which are 3rd party verified.  The 3rd party verified HPDs provide assurance all the products raw materials are declared to the specified PPM.  PLUS, 3rd party verified HPDs can assist in achieving credits in your LEED v4.1 project. 

CertainTeed Gypsum also is committed to producing low VOC content products.  Many of our gypsum board and setting compounds are GREENGUARD Gold certified through UL Environment. 

Our gypsum board manufacturing facilities, located throughout North America, operate in a responsible and environmentally conscious ethic which includes:

  • Réclamation
  • Préservation des ressources naturelles
  • Le recyclage
    • Many plants have pre and/or post-consumer recycled content used within the products
    • Papier 100 % recyclé sur les deux faces
    • Les déchets en usine sont recyclés dans le processus de fabrication.
  • La gestion des déchets

CertainTeed products can contribute to many different Green Building Rating systems, such as the LEED and WELL programs. Sustainable documentation, including recycled content, EPD’s, HPD’s, VOC Certifications, can be found at https://certainteed.concora.com/.

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