Surfaces to be cautious of are SMART repairs, improper finishes from body shop work, delicate vintage paintwork and single stage paint. If using the product on these surfaces proceed with caution and test Just The Tonic tar remover on an inconspicuous area. Your looking for paint swelling, transfer of paint or hazing. If none of these are present you can use Just The Tonic with confidence.
Do not leave on plastic parts for long periods
Avoid using Just The Tonic in extreme hot temperatures
Do not leave on the surface over the recommended time