Milestones said:Obviously Leo has a great deal of knowledge regarding the care of MF towels.
In addition, the concours buffing towels carried by his company look like an absolutely amazing product.
However, there does appear to be a bona fide dispute between the experts as to the issue of cold water vs. hot water for washing MF towels.
Leo has indicated that he feels it is idiotic to treat MF towels like fine/delicate linens by washing them in cold water.
However, David B in the Autopia detailing guide indicates otherwise (quoting from the guide on "Maintaining Microfiber"):
"The best general purpose cleaner is a liquid detergent. It’s better to use too little than too much. Liquid is recommended over powder because some powders do not completely dissolve and the granules will lodge in the toweling.
Wash in cold water only. Warm water can be tolerated, but hot water cannot. Polyester and polyamide both shrink in hot water. If you wash in hot water the fibers will shrink and the towel will not perform as intended."
Perhaps this difference in opinion can be traced to the fact that Leo is speaking from his experience with his company's towels which I believe are made mostly out of cotton, whereas most MF towels are made out of a 80/20, 75/25, or 70/30 polyester/polyamide blends.
At any rate, I'm sorry my disagreement with Leo got so heated and I'm also sorry he has not chosen to respond to my attempt to bury the hatchet via PM.
Do you think David has ever manufactured a towel? I'll take Leo's word for it.
Whatever occurs between Leo and yourself via PM should stay there - it has no business in the open forum.
P.S. Leo's towels are microfiber, too.