Conventional gypsum basecoat plaster helps create durable, sound- and fire-resistant interior walls.
Easily conforms to a variety of wall and ceiling designs.
Type: Conventional Plaster Finishes, Gypsum Plaster, Finish Plasters
For use in a fire rated system
Building Environments: Administrative Offices, Auditoriums/Gymnasiums, Bars/Restaurants/Dining Areas, Cafeterias, Classrooms, Convention/Meeting Rooms, Corridors/Hallways, Department Stores/Boutiques, Dormitories, Executive Areas/Conference Areas/Board Rooms, Exterior Soffits/Indoor Parking Garages, Galleries/Exhibit Spaces, Garages, Grocery Stores, Guest Rooms/Suites, Health and Fitness, Kitchens/Food Prep Areas, Laboratories/Operating Rooms/Imaging Rooms, Lobbies and Reception Areas, Locker Rooms/Shower Areas/Pools, Mall Interior Spaces, Mechanical Rooms, Media Centers/Music Rooms/Libraries, Multi-Family Residential/Condos, Nurseries/Birthing Rooms, Open Plan Offices, Patient Rooms, Restrooms/Utility Rooms/Loading Docks, Single-Family Residential, Stairways/Elevator Shafts, Theatres, Traditional Offices, Warehouses
|Data Submittal Sheet||RED TOP® Gypsum Plaster Submittal Sheet - P752||149 kB||view|
|SDS MSDS||USG Red Top® Gypsum Plaster SDS (English) - 53000010024||62 kB||view|
|SDS MSDS||USG Red Top® Gypsum Plaster SDS (Spanish) - 53000010024||64 kB||view|
|Technical Guide||RED TOP® Gypsum Plaster Application Tips - P844||51 kB||view|
|Technical Guide||Plastering Technical Guide - Preparation for Painting (English) - PM15||134 kB||view|
|Technical Guide||Plastering Technical Guide - Acoustical Plaster Finish Application Tips (English) - PM18||169 kB||view|
|Technical Guide||Plastering Technical Guide - Comparing Regular Plaster, Veneer Plaster & Drywall Systems (English) - PM2||120 kB||view|
|Technical Guide||Plastering Technical Guide- Environmental Factors - Plaster Application (English) - PM10||209 kB||view|
|Technical Guide||Plastering Technical Guide - Transporting Handling Storing Plastering Materials (English) - PM11||127 kB||view|
|Technical Guide||Plastering Technical Guide - PM Glossary (English) - PM1||220 kB||view|
|Technical Guide||Plastering Technical Guide - Preventing Cracks in Veneer & Conventional Plaster Systems (English) - PM17||1013 kB||view|
|Technical Guide||Plastering Technical Guide - Job Use of Accelerator in Plaster and Setting-Type Joint Compound (English) - PM8||193 kB||view|
|Technical Guide||Plastering Technical Guide - Job Use of Retarder in Plaster (English) - PM7||120 kB||view|
|Technical Guide||Plastering Technical Guide - How to Use Trims and Beads Properly in Plastering (English) - PM20||270 kB||view|
|Architectural Spec||USG® Gypsum Plaster Basecoat Plasters Architectural Spec - 092100||122 kB||view|
|Architectural Spec||USG® Gypsum Plaster Finish Coat Plasters Architectural Spec - 092100||127 kB||view|
|Project Profile||USG Plaster Work Perfection Capitol Project Profile - P894||2024 kB||view|
USG Red Top® Brand Gypsum Plaster is one of the most popular conventional gypsum basecoat plasters in the building industry. Used to create durable, sound- and fire-resistant interior walls, USG Red Top® Brand Gypsum Plaster:
What paints are recommended for decorating veneer plaster?
Consult paint manufacture for proper primer selection for both lime-containing finish plasters, such as Diamond® Veneer Finish; or non-lime-containing finish plasters such as Imperial® Veneer Finish. See literature piece PM15 for Preperation for Painting details.
What is the shelf life of plaster?
Plaster can be stored 3-6 months if it is stored in a cool, dry place, protected from extreme heat and cold, direct sunlight and at a temperature above 45°F (7°C).
What is the best way of repairing an old wood lath plaster application?
Remove the old plaster down to the wood lath, staple metal over the existing lath and apply Red Top® sanded conventional basecoat over the metal lath. Any USG finish plaster can be applied over the basecoat plaster for a final coat.
When can a conventional plaster system be painted?
A conventional plaster system can be painted after it is completely dry.
Can USG Red Top® Brand Finish Plaster be applied over Veneer Basecoats?
Yes. Mill-mixed USG Red Top® Brand Finish Plaster or other job-site lime/gauging plasters can be applied over Veneer Basecoats.
When can veneer plaster be painted?
Veneer plaster can be painted when it is completely dry. The best way to determine if the plaster is dry is by taping a piece of 12" by 12" plastic to the surface. If any moisture remains on the plastic after 24 hours then the plaster is not completely dry.
What is the difference between USG Imperial® Veneer Finish Plaster and USG Diamond® Veneer Finish Plaster?
USG Imperial® Veneer Finish Plaster is stronger and more abrasion resistant.
USG Diamond® Veneer Finish Plaster is designed for ease of use and slightly improved abrasion resistance when compared to gypsum panels.
What are the only base coat plasters that can be used as the scratch and brown coat for a conventional 3-coat application over wide-flange (1 inch or greater) framing?
USG has three products that can be used: Red Top® Gypsum Plaster, Red Top® Wood-Fiber Gypsum and USG® Structo-Base® Gypsum Plaster.
What is the recommended spacing of control joints for a plaster system?
Control joints are not to exceed 30 feet for walls and ceilings. The spacing for a ceiling with perimeter relief is not to exceed 50 feet.
What is the recommended stud spacing for installing conventional plaster?
Do not exceed 16 inches on center.
Can USG Veneer Plaster be applied directly over CMU?
The CMU must cure for at least 45 to 60 days prior to the plaster application. Refer to USG system folder SA920 for specific application directions.
What are the deflection design criteria for installing plaster systems?
When installing a veneer plaster system it should be designed at deflection L/240 and L/360 for a Conventional Plaster system.
Can plaster be used for grouting doorframes?
Yes, but only on open throat doorframes, per door manufactures requirements. Red Top® Gypsum Plaster mixed with sand is most commonly used for full grouts. (Recommendation: 1-part Red Top Gypsum/ 2-parts sand per bag)
See the Gypsum Construction Handbook for full details.
Can conventional 3-coat plaster be used with drywall grid?
Yes. If the main tees, cross tees and hanger wires are properly sized and spaced to carry the plaster load and only Red Top®; Structo-base® gypsum basecoat plaster is used for the scratch and brown coats.
Can Veneer Plaster be applied to sun-faded USG Imperial® Brand Gypsum Base?
No. An alum spray must be applied prior to application.