I suspect it is orange oil that is the main active ingredient. The
others are to temporarily soften the rubber and clean it, but the orange
oil penetrates and softens the rubber on a longer term basis. I don't
know what long term results will be.
From Wikipedia:
Limonene is a hydrocarbon, classed as a terpene. It is a clear,
colourless liquid at room temperatures with an extremely strong smell of
oranges. It takes its name from the lemon, as the rind of the lemon,
like other citrus fruits, contains considerable amounts of this chemical
compound, which is responsible for much of their smell. Limonene is a
chiral molecule, and as is common with such forms, biological sources
produce one specific enantiomer: the principal industrial source,
Chemical Name: 1-methyl-4-prop-1-en-2-yl-cyclohexene
Synonyms 4-isopropenyl-1-methyl-cyclohexene
Racemic: DL-limonene; dipentene
Chemical formula C10H16
Limonene is increasingly being used as an environmentally friendly
alternative to mineral oils as a solvent for cleaning purposes, such as
the removal of oil from machine parts, being more easily biodegradable
than mineral oils, and produced from a renewable source (citrus oil, as
a byproduct of orange juice manufacture.)
* R10: Flammable.
* R38: Irritating to skin.
* R43: May cause sensitization by skin contact.
* R50/53: Very toxic to aquatic organisms, may cause long-term
adverse effects in the aquatic environment.
* S2: Keep out of the reach of children.
* S24: Avoid contact with skin.
* S37: Wear suitable gloves.
* S60: This material and its container must be disposed of as
hazardous waste.
* S61: Avoid release to the environment. Refer to special
instructions/Safety data sheets.
Art
