Paint chip repairer ChipsAway International has accused some rival firms of operating beneath the law by supplying products that contain isocynates and encouraging open air spraying.
Nick Bicknell, ChipsAway quality control manager, claimed an article in the last issue of Automotive Management (Confusion over chip repair compliance) had "a lot of truth to it".
He said: "There are several smaller operators and some larger companies that are benefiting from our success in chip repair, but who are using non-compliant products. The health and safety bodies have not got a grip on the situation, which is frustrating for us."
ChipsAway, which trains mobile technicians to operate in fixed franchise territories, has an alliance with Halfords and is putting together a project with the RAC. It is also in negotiations with a major carmaker and hopes to announce a supply deal soon.
"The manufacturer is aware of the non-compliant companies and is trying to eradicate the use of their products at its dealerships - but this isn't easy," said Mr Bicknell.
"We need to publicise that such products are being used. I have spoken to the Health and Safety Executive about our concerns, but nothing has been done. Local authorities have various interpretations on the COSHH (Control of Substances Hazardous to Health) rules."
Mr Bicknell stressed that ChipsAway products met all health and safety and environmental requirements. Its technicians work with several franchised dealers.
"Our products are processes are within the occupational exposure standards, proved by the COSHH reports by the appropriate parties," he said.