On 19/05/2021 19:13, Scott wrote:
I am wondering if anyone has tried using Hammerite paint on a plastic
pipe. Mr Google seems to think it is okay. For context, I am
painting a steel fence so it would be very convenient to use the same
paint on the pipe even if it is over-specified but not if it is likely
to cause problems.


Probably depends upon the Hammerite you are using and the plastic the
pipe is made from :-)

IIRC, the original Hammerite used xylene as a solvent. Xylene badly
degrades uPVC, a common material for pipes. However, there are now water
based Hammerite paints, which are unlikely to affect any plastic.


--
Colin Bignell