The North Dumfries Fire Department responded to a fire at a business on Greenfield Road in Ayr.
Fire officials say they were called to M CONN Pipe and Products around 10:00 p.m. on Monday.
The fire was originally called in by a passerby as a brush fire but the fire chief says when crews arrived flames were coming from a bin of rubber gaskets.
He says the gaskets are used to seal the pipes products by the plant.
A damage estimate has not been released. The fire chief believes the fire was set intentionally.
Waterloo Regional Police say they are not investigating.
