Nylon nuts in an application where road deicing salt water is splashed 2

[macnta]

Hi, we have an application where we consider using Nylon nut under a rolling structure. Such structure will be carried in winter conditions. Therefore it will be splashed with water having deicing and anti icing salts in it. These salts may contain Sodium chloride, Calcium chloride, Mixture of sodium chloride and calcium chloride, Magnesium chloride, Mixture of sodium chloride and magnesium chloride, Potassium chloride, Brines or Ferrocyanide....

I have read nylon may absorb water, do you foresee any short or long term problems with the fact that 1.) nylon may absorbe water and 2.) nylon may absorbe water with the mentionned chemical components...

Thank you, Marc

 

[macnta]

Forgot to mentionne:

Nylon nut may also be exposed to oils, soap/detergent wash down, & alcohols

 

[btrueblood]

Yes, salt spray followed by drying can embrittle nylon 6 and 6,6 over time and/or number of cycles. The problem is worse if zinc chloride is one of the salts. The degradation is slower for high molecular weight nylons (nylon 11 or 12).

see:

http://books.google.com/books?id=Cf...age&q=nylon attacked by salt solution&f=false

and

http://scholar.lib.vt.edu/theses/available/etd-110899-095334/unrestricted/etd2.pdf