Mr Davies stated he noticed “thick, black smoke” coming from the location, and there has been a nasty scent within the air.
“there was particles coming from the smoke itself, sizzling ash saved landing on me – i have a hollow in my t-blouse,” he advised BBC Radio Wales.
“It was very surreal, not something you could possibly see every day but terrifying at the time.
“It was a nastier odor than rubber, the odor cannot be defined nevertheless it wasn’t very pleasant, let’s placed it that approach.”
Crews from Pontypridd, Caerphilly, Whitchurch and Abercynon attended the blaze.
The ultimate fireplace engine left the scene at 04:00 BST on Thursday morning.
Symbol caption The devastation left behind through the hearth on the business property on Pentrebach Street in Pontypridd Symbol caption The A4054 road was once closed each ways and thick black smoke can be seen for miles. Nearby citizens have been also suggested to close their home windows. Image caption South Wales Fire and Rescue Carrier crews have been in a position to leave the scene within the early hours of Thursday morning.