I recently applied Nikwax tx.direct spray-on to refresh the DWR layer of a pair of Outdoor Research overpants. The fabric has a “clammy” interior membrane and seals over various seams. The garment is probably 10 years old and has been infrequently used.
Much to my dismay I discovered that after the Nikwax spray was applied the garment was irreversibly damaged. Firstly, most of the seals over seams had come away from the inner membrane. It would appear the Nikwax had completely dissolved the glue binding seals over most seams. Secondly, the Nikwax had partially dissolved large areas of the inner membrane. So, a significant proportion of the inner membrane was less waterproof than areas unaffected by the spray.
All in all my garment is now useless.
Has anyone else had similar problems with Nikwax ?