Burnt and melted

[goomer 14]

Looking for some advice from the braintrust.

A fire restoration contractor called me to attempt to clean some brick and stone that was "charred" from a fire.

Most of the soot came off, but there was one area where a phone juction box and cable wires were melted. Above the melted wires was heavy charring that would not come off, and under it, it seems to have dripped when melting, leaving rock hard tar like stains. I am mainly concearned with the dripps on the decorative stone since it is so obvious.

Any tidbits on how to effectively remove this?

Thanks in advance.

[Jerry 24]

..wow.. no suggestions after 3 days !??

How about sandblating with FINE-grit.. like #30 or 40 grit ?? ..walnut shells ??

I don't do the cleaning, but..

it seems that burnt plastic. would "shatter like glass" with a dry-ice blater ??

Don't use heat, as plastic gets stickier as it gets softer.

and don't use solvent, or the stain would be horrible.

Edited July 16, 2011 by Jerry
sp.

[go green pressure washing 14]

Hey goomer any luck yet with that job.

Pm if you havent found anything yet.

[go green pressure washing 14]

Hey Jerry how have you been staying busy.

Thanks for the great show you put for us in San Diego.