On 19/05/2021 20:46, Martin Brown wrote:

Old very high VOC Hammerite with xylene you might embrittle the pipe
even if it is something nominally robust. If it is a polystyrene pipe it
will be destroyed.

Modern Hammerite might also embrittle pipes longer term but probably
isn't quite as damaging as the old formulation.

Hmm, that doesn't bode well for a plastic bodied CCTV camera I've
screwed to a freshly painted w/hammerite metal bracket?

--
Adrian C

On 20/05/2021 06:14, Adrian Caspersz wrote:
On 19/05/2021 20:46, Martin Brown wrote:

Old very high VOC Hammerite with xylene you might embrittle the pipe
even if it is something nominally robust. If it is a polystyrene pipe
it will be destroyed.

Modern Hammerite might also embrittle pipes longer term but probably
isn't quite as damaging as the old formulation.

Hmm, that doesn't bode well for a plastic bodied CCTV camera I've
screwed to a freshly painted w/hammerite metal bracket?

I suspect that once the solvent has evaporated 99% of the issues go away.