Water drop stains on upholstery?

Discussion in 'General Discussion' started by CU_Tiger_06, Aug 2, 2019.

  1. CU_Tiger_06

    CU_Tiger_06 New Member

    6
    May 24, 2019
    240 Sundeck 2005
    260 Mercruiser Bravo III
    After a heavy rain, followed by a few hot days, I went to my boat to remove the cockpit cover. There was some standing water drops on a few of the horizontal upholstered cushions, and after wiping it away, stains were left (See attached picture).

    First time this has ever happened to me; almost looks like bleach stains, but definitely just from rain water that leaked through the cover. Any idea how to get rid of this? I tried 3M boat upholstery cleaner, but that didn't work.
     

    Attached Files:

  2. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor GOLD Sponsor

    Apr 21, 2009
    PA
    Various
    Various
    I have not personally seen that, before, but my "guess" would be that moisture got underneath the top layer of the vinyl. Chances are, that it will go away by itself as the moisture evaporates. But you could hasten the process by leaving the cushions out in the bright sun. It may just take a few hours - or maybe a day or two. I'd at least try that, first. And then be sure to treat the vinyl on a regular basis with something like 303.
     
    CU_Tiger_06 and JVM225 like this.
  3. CU_Tiger_06

    CU_Tiger_06 New Member

    6
    May 24, 2019
    240 Sundeck 2005
    260 Mercruiser Bravo III
    You were correct! Water spots disappeared after a full day in the sun. Thanks.
     
    Chris-380 likes this.
  4. BillK2632

    BillK2632 Well-Known Member GOLD Sponsor

    Jun 25, 2009
    Lake Norman, NC
    1999 185 Bowrider,
    Mercruiser 4.3, Alpha I
    I would treat them with 303 like Dennis suggests. I have seen similar spots on my 185 - the rear engine cover/sunpad has some blue sections of vinyl. Have found when I keep it treated with 303 it does not happen.
     

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