On 27/06/2020 14:00, Jimk wrote:
"Dave Liquorice" Wrote in message:
On Sat, 27 Jun 2020 08:14:20 +0100 (GMT+01:00), Jimk wrote:

A gas weed burner might do it for a small area couple of square
feet
tops, the flame isn't very big. For larger area a gas torch on
felt
type burner or a Sheen x300 paraffin woukd be more suitable. Can't
decide if the heat will damage the concrete surface more than a
pressure washer at point blank range.

I was thinking drop some diesel on it & light it....

You'd still need the weed burner to get the diesel going...

If there is something to act as a wick, parrafin would burn but not
hot enough over an area to do much to the paint.

Petrol, don't go there.


Mmm.

Napalm?

Burning the resin (which will be difficult) is just going to leave the
red iron oxide pigment stuck in the roughness, but now bonded with tarry
material. A bit like chip pan residue.

Pressure washer and time.