I came across my old tubs of Zymol Carbon in the box today. They havn't been in the fridge in years... Are they still good do you think? Thanks!

Is Zymol Carbon a wax?

I've never heard of refrigerating a wax before.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".

Well, there are two formulas to the original Zymol in the tub, Creme and Carbon. Carbon being for darker colored cars. On the tub, it says to keep in the fridge... I used to, but then not. I wonder if the wax is shot...

I wonder what ingredient it has in it that requires refrigeration.

What does it list in the ingredient statement?

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".

I don't know... But I assume Carnuba

Zymol is made up of 100% natural ingredients, not that it go moldy if not regrigerator. Look at the wax, see what it looks like.

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member

No mold, just nice smelling, blue paste as always... I even spooned out some... It does look and smell good enough to eat! But I would never...

It's probably all right. I always thought the refrigeration thing was just about building the Zymol myth... although I keep mine in the fridge. You're meant to take it out of the fridge 24hrs before use anyway.

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JJ Rodger
2013 G350 Bluetec
1999 SL 500
1993 E300 diesel T
1990 190

I know refigeration keeps it solid like a paste. I've seen it like melt, so, I suppose the cold is good for it...

Don't know if this is the case here, but many waxes and oils can undergo oxidative changes - specifically, oxidative cleavage of unsaturated sites to give organic acids, aldehydes (which can further oxidize to acids), and ketones. This is one of the reasons for the rancid smell encountered in old bottles of cooking oils, especially nut oils like peanut or sesame. Refrigeration should help slow down this process.

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2002 E320 4-Matic
2008 Subaru Outback
2009 Subaru Forester