Certainteed Extra Lightweight Joint Compound is ideal for use in all steps in the drywall finishing process. From taping to concealing nail and screw dimples, our extra lightweight join compound is quick and easy to use.

This Extra Lightweight Joint Compound comes premixed, ready to use right out of the container and dries fast – in as little as 4 hours – with minimal shrinkage. Get an extremely smooth finish with fewer passes and enjoy easy sanding.

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

Check out our other Certainteed Compound products: 

Certainteed Lightweight Joint Compound
Certainteed Midweight Joint Compound
Certainteed All-Purpose Joint Compound

Technical Information

Material: Vinyl-type formulation.

Colors: White, Beige, and Yellow

Emissions: Asbestos free.

Coverage: Approx. 7.75 Gal. (29.25 L) per 1,000 ft2 (100 m2) coverage will depend on number of beads and amount of trim.

Drying Time: 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.

Storage: 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.


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

Taping and Finishing Joints:
Step one: Using a taping knife (4–6 in.), apply compound to the joint formed by the tapered panel edges. Press joint tape into the compound, removing excess material. Allow tape coat to begin to dry then 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.
Step two: A finish coat should be applied over the Step One application to fill any voids or shallow spots. Remove excess by feathering and allow to dry completely before sanding. Compound can be applied up to 1/4 in. thick without cracking.

Finishing Inside Corners:
Using a steel finishing knife (4”– 6”), generously apply Certainteed Extra 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:
Certainteed Extra 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.

Certainteed Extra Lightweight washes off easily with warm water. Tools should be dried thoroughly to prevent rusting.

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 Extra 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.

Certainteed Extra 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.

Warranty Details

Since methods and conditions of application and storage, such as temperature, humidity and over thinning are beyond our control, CertainTeed Gypsum, Inc. (CertainTeed) will not be responsible for the failure of this product when not used and stored according to directions and specifications and accepted standards of procedure inherent in drywall application; or when reasonable allowance is not made by the user for adverse weather and job conditions. However, if this product proves to be defective, CertainTeed’s maximum liability shall be limited to replacement of the defective material only or refund of the original purchase price. CertainTeed will not be responsible for any other costs or expenses. These shall be the exclusive warranty and remedies provided by CertainTeed, including without limitation, the implied warranties or merchantability, fitness for use and fitness for a particular purpose. All claims shall be submitted in writing to CertainTeed within thirty days from the date of discovery. State or federal laws may provide rights in addition to this limited warranty that cannot be modified or excluded.

Sustainability Information

CertainTeed takes pride in providing the best solutions to make the spaces where we work, live, and play healthier and safer. This means offering high-performing products that create better living environments.

Our products improve building energy efficiency and reduce building energy consumption for the life of the structure. As a result, they help conserve nonrenewable energy sources, decrease dependence on hydrocarbons and lower greenhouse gas emissions.

CertainTeed’s ongoing commitment to sustainability in our manufacturing operations incorporates the principles of industrial ecology, managing energy and water, and reducing waste.


Our ecomedes Sustainable Product Platform allows you to quickly access the product information and certifications you need, calculate contributions to LEED and other green building rating systems and create and save a group of products using the project feature. The information is free to access and always up to date.

Sustainability Docs

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