[R-390] Removing MFP

[Bill Hawkins]

It occurred to me that chipping dry MFP might require a mask,
so I dug a little deeper.

MFP Varnish
http://www.wbdg.org/ccb/FEDMIL/v173c.pdf

3.1.2 Oil. The oil shall be tung oil conforming to Specification TT-T-775.

3.1.3 Resin. The resin shall be para-phenyl phenol-formaldehyde resin
conforming to Specification TT-R-271.
http://en.wikipedia.org/wiki/Formaldehyde#Safety
Formaldehyde is highly toxic to all animals, regardless of method of intake.
Known to be a human carcinogen.

3.1.4 Fungistatic agent. The varnish shall be made fungistatic by the
addition of salicylanilide, or, when specified, copper 8-quinolinolate.

Salicylanilide 7 +/- 1%
>From MSDS at http://www.sciencelab.com/msds.php?msdsId=9924857
Potential Acute Health Effects:
Very hazardous in case of ingestion. Hazardous in case of skin contact
(irritant), of eye contact (irritant), of inhalation.

Copper 8-quinolinolate 1.0 +.25/-0%
Used to treat exterior wood. Not nearly as harmful as salicylanilide.

Disclaimer: I have chipped some MFP in my day (and snorted rosin from
lead solder) with apparently no ill effects at age 74. YMMV

Bill Hawkins

P.S. From http://www.bruadair.us/html/body_brightwork.html
For those of you, mainly landlubbers, that are unfamiliar with the
term 'brightwork', this refers to the exterior woodwork on a boat
that is varnished. [That is, the varnish makes the mahogany bright.]