NASCLA Accredited Commercial General ContractorFinishesMedium
A contractor is installing ceramic tile in a commercial kitchen that will experience frequent exposure to grease, food acids, and high-pressure washing. Which type of grout should be specified to ensure long-term durability and resistance to chemical degradation?
- AUnsanded Portland cement grout
- BEpoxy grout
- CSanded Portland cement grout
- DAcrylic latex grout
Show answer & explanationAnswer & explanation
Correct answer: B. Epoxy grout
Epoxy grout offers superior chemical resistance, stain resistance, and durability compared to cement-based or acrylic grouts, making it ideal for environments with harsh chemicals and frequent cleaning like commercial kitchens.
Why the other options are wrong
- A. Unsanded Portland cement grout is also porous and not suitable for chemical resistance or high-traffic areas.
- C. Sanded Portland cement grout is porous and susceptible to staining and chemical degradation in harsh environments.
- D. Acrylic latex grout offers some flexibility but lacks the chemical resistance and hardness required for this application.
Epoxy Grout
A two or three-part grout system consisting of epoxy resin, hardener, and sometimes filler, known for its exceptional chemical resistance and durability.
- Highly resistant to chemicals, stains, and moisture.
- Stronger and more durable than cement-based grouts.
- Ideal for commercial kitchens, hospitals, and industrial settings.
Memory trick: For tough kitchen spills, only EPOXY grout is truly boss.