[70cst]

I have read some negative press on tar-like rust proofing so ... I am going to give this a try on my 2004 Sierra


Lanolin is a unique organic substance derived from the wool grease coating on raw sheep wool. It is an all natural, incredibility effective substance that acts as a moisture barrier and lubricant.
WoolWax® Undercoating Formula is a lanolin based corrosion inhibitor developed solely to protect the undercarriages of automobiles and trucks. Our lanolin is blended with other proprietary agents to provide long term corrosion protection. WoolWax® will provide long term protection (annual application) against salt, liquid calcium chloride, brine, and all other ice control agents that are being used by municipal departments.

Most other undercoating products contain up to 70% solvents, which make these products very thin and watery. Without a very thick viscosity, these products break down and wash off quickly. WoolWax® is solvent free and very thick and viscous. It applies like a heavy latex paint, which makes it very resistant to wash-off. WoolWax® does not dry. It remains soft and pliable and continues to be active, migrating into all the inaccessible areas.
Woolwax® contains much more raw woolgrease (lanolin) than any competitive product. This makes Woolwax® thicker and much more resistant to wash off. Thereby providing a longer period of protection for exposed undercarriage areas.