I have a 95 black MKIV that has a single stage black paint job. Will it be safe to polish the paint since there is no clear coat? A friend told me it is unsafe to polish a car with no clear coat. My pain of attack includes... Optimum Polish with the Orange pad and finish with Menzerna's PO106FF with the white. I'm using the Flex polisher, which is similar to the Porter Cable 7424.