Rapid Set® OnePass®: Wall Repair Material and Joint Compound

When your wall repair or general construction project requires a fast-setting, durable product, choose Rapid Set® OnePass® Wall Repair and Joint Compound. Use OnePass for general construction and repair of wallboard, cement board, magnesium oxide board, plaster, smooth stucco, masonry, some wood repair applications and many other surfaces. OnePass is an all-purpose, fast-setting, weather-resistant and mold-resistant construction material that works well in wet areas.  It is formulated with premium-grade hydraulic cement, high-performance polymers and quality, finely ground aggregate.

Apply OnePass on many types of interior and exterior surfaces, from featheredge to 1-inch deep in a single, full-depth application. Paint in 90 minutes and complete your job the same day.  One 25-pound bag covers approximately 77-square feet at 1/16-inch deep.



The Datasheet explains the performance and technical characteristics of Rapid Set® OnePass®.  It also shows how to use OnePass (i.e. surface preparation, mixing, placement and curing).

The Spanish Datasheets are also available here.


The Safety Data Sheet (SDS) outlines information and procedures for handling and working with Rapid Set® OnePass®.  It includes physical and chemical property information, potential hazards, emergency procedures and CTS’s contact information.


The Specification gives a detailed statement explaining the type of jobs to specify Rapid Set® OnePass® for, the scope of work, thicknesses, performance requirements and usage.

Click here for word document

Standard Practices

Q: Is OnePass® sandable?
A: Yes, at normal temperatures, OnePass can be sanded after about 45 minutes. It is easiest to sand within the first 24 hours.

Q: How should the surface be prepared?
A: Make sure all loose particles are removed from the surface to be patched.

Q: Can I use OnePass over a painted surface?
A: Yes, but any chipped or cracked paint should be removed first. The painted surface should be sanded with heavy grit sandpaper first to give the OnePass something to mechanically bond to.

Q: What color is OnePass?
A: It is an off-white color that when dry will roughly match the color of the drywall.

Q: How much working time do I have with OnePass?
A: At normal temperatures, OnePass will start to stiffen up after about 20 minutes and will reach initial set in about 45 minutes. Cold water and material will slow down the set time, and warm water and material will speed up the set time.

Q: If OnePass is supposed to be set after 45 minutes, why does it still look wet?
A: If the patch is deep, the OnePass may take slightly longer to cure. This may cause the color to be slightly darker even though the material is completely cured.

Q: What coverage can I expect from a 25 lb. bag of OnePass?
A: Each 25-lb. bag of OnePass will cover an area of 77 square feet at 1/16 inch deep (skimcoat).

Q: Is OnePass waterproof?
A: OnePass is a weatherproof indoor/outdoor repair material and will stand up to moist conditions.  However, OnePass will not create a waterproof barrier.

Jobs & Applications

  • Skechers Corporate Office in Manhattan Beach, CA, Richard’s Plastering (patching and repairing of exterior walls, skim coating of interior walls of parking structure)
  • University of Texas Research Facility in Galveston, TX, Applied Finish Systems Inc. (over Magnesium Oxide Board)
  • Embassy Suites in Kansas City, MO (repairing walls)
  • Malcolm X Library in San Diego, CA, City of San Diego Maintenance (smooth out tops of pitted block, general wall repairs)
Leed Product Evaluation

TechnicalSupportWhether you’re working on a time-sensitive project and need answers, or evaluating and choosing the right cement products, or looking to achieve specific results, we are here to help. Get answers to your questions from our technical support team. Find and download useful information from our website. Ask us to help get your construction team up to speed by requesting a jobsite demonstration or educational seminars.

ConcreteCalculatorLearn how Rapid Set’s strength, speed and sustainability help you get better results and finish your jobs sooner. These Charts will show you how.

ProductEvaluationLEED product evaluations summarize a product’s ability to contribute to a variety of LEED credits. These credits include Solar Reflectivity (SS7), Regional Materials (MR4), Recycled Content (MR5), VOC Content (EQ4) and Innovation in Design (ID1).

Skip to toolbar