Chemical Explosion in Spartanburg Denny’s Parking Lot Temporarily Closes Restaurant
A truck carrying diphenylmethane, a chemical used in spray foam, exploded in a Denny's parking lot in Spartanburg, South Carolina. The incident occurred when the chemical reacted with water, causing it to expand. While no injuries were reported, the restaurant…

Nashville, TN, August 5, 2026 —
A chemical explosion occurred in the parking lot of a Denny’s restaurant in Spartanburg, South Carolina, leading to the temporary closure of the establishment. The incident involved a truck carrying diphenylmethane, a chemical commonly used in spray foam insulation.
According to reports, the explosion was caused by the chemical reacting with water, which resulted in significant expansion. The exact date of the incident was not provided.
While thankfully no injuries were reported among patrons or the public, the chemical did spread to the restaurant building and surrounding areas. As a precautionary measure, the Denny’s was temporarily closed. Employees who may have been exposed to the chemical underwent decontamination procedures.
Diphenylmethane is a chemical compound with the formula C13H12. Its primary use is as a precursor in the production of methylene diphenyl diisocyanate (MDI), a key component in polyurethane foams, including spray foam insulation.
Authorities responded to the scene following the explosion. The extent of the damage to the restaurant and parking lot was not specified. Further details regarding the truck’s owner or operator, as well as the specific circumstances leading to the water’s contact with the chemical, were not immediately available.
Story summarized from the original created by Anisa Snipes, Jordan Gartner on www.wsmv.com, see more information here.
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