I would greatly appreciate some advice on the best (and safest?) method of removing resin parts from the casting blocks.
My fairly recent attempt to use a replacement mantlet ended badly and as I am hoping to buy a resin conversion set at the weekend I would like to avoid a repeat of what can be at best described as butchery.
Cheers October

You have to get yourself a good quality razor saw and a respirator mask. Keep it damp, as you know the dust is carcinogenic.

Vinnie

In addition to what Vinnie told you (all good pointers) have good ventalation. I usually have a window or garage door open and a fan running in addition to a mask.

Invest in a Dremel or Moto tool with cut-off wheel supply.Just follow the safety procedures,take your time and you will be pleasently surprised .

Like Rick, I use a rotary tool to remove the excess resin mount. The mask is definitely a must, too.
The first time I cut it, I couldn't believe the amount of dust and how fine it was.

Also once you remove the resin pour blocks you can sand the remaining resin under water in the sink, this way you get zero dust i have been doing this lately it works great.

Thanks to all for their advice.
It was only recently I discovered the unplesant side to resin and was duely alarmed.However using the above I feel more confident in my next venture.
Cheers October