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Washer Fluid

  • April 21, 2022 10:23 PM
    Reply # 12719171 on 12696394

    As I mentioned before, I've used the original Rain-X (yellow bottle) for over 40 years on new cars (Z-cars, BMWs, etc) and never noticed any paint problems. Also, when applying original Rain-X you don't use the wipers, so it's dry before the wipers touch the surface.  (And if you notice, the answer was NO.)  The all season (orange) washer fluid has a different composition than original Rain-X.  (It's available a Walmart.)  The function that makes Rain-X better than the blue stuff is it's water-shedding properties (super-hydrophobic) that allows you to drive in even heavy rain without activating your wipers.  I used to travel for for my job, and had times on the Thruway where cars & trucks had to pull off because the rain was so intense, yet I had no problem seeing with my wipers parked. (BTW, Rain-X is GSA stock listed for use on Military jet windshields.)

  • April 20, 2022 4:30 PM
    Reply # 12716368 on 12696394

    From:  https://medlineplus.gov/ency/article/002803.htm

    They say: "Windshield washer fluid is a brightly-colored liquid made of methanol, a poisonous alcohol. Sometimes, small amounts of other toxic alcohols, such as ethylene glycol, are added to the mixture. Some young children may mistake the fluid for juice, which can lead to accidental poisoning. Even small amounts can cause serious damage. This article discusses poisoning from swallowing windshield washer fluid."

    ----------------------------------------------------------------------------------------

    Rain-x FAQ:  IF YOU GET RAIN-X® ORIGINAL GLASS TREATMENT ON YOUR PAINT, WILL IT RUIN THE PAINT?

    Posted on: May 23rd, 2012

    No, but you should rinse the product off with soap and water.

    I guess they have a reason but they don't elaborate.

    ---------------------------------------------------------------------------------------------------

    I was unaware of the following product :

    Another Rain-X product for the books: Rain-X On-The-Go Glass Water-Repellent

    Chemical Name CAS No Weight-%

    Isopropanol 67-63-0 40 - 70

    Acetone 67-64-1 10 - 30

    Liquefied Petroleum Gas 68476-86-8 7 - 13

    I know acetone is not especially good for paint.  Although there are these cautions I have never conducted long term testing on wiper blade degradation. There are enough chemicals in the air and on the roads to ruin those so I just change them once a year.





  • April 20, 2022 10:20 AM
    Reply # 12715630 on 12712662
    Richard Settembre wrote:

    I know Rain-x uses Polydimethylsiloxane (PDMS).  It is basically acidified alcohol which is not friendly to wiper blades or paint. 

    Which MSDS did you find this on, since the MSDS's I have do not list this as an ingredient.   Also, with  over 40 years of using Rain-X on every one of my vehicles I've never seen any paint or blade problems.    
  • April 18, 2022 12:17 PM
    Reply # 12712662 on 12696394

    I found this information.  To Robert's point most products are similar. They are made of methanol and other alcohols like ethylene glycol. Many also contain small amounts of ethanol or antifreeze made from methylated spirits to keep the product from freezing during the winter months. Some use Methanol. I would stay away from those.  Methanol is a neuro-toxin and is probably used in larger doses for the very low temp. windshield washer fluids.   I use the basic stuff for the summer diluted 50/50 and the poisionous stuff only for the dead of winter. (no pun intended!)

    I know Rain-x uses Polydimethylsiloxane (PDMS).  It is basically acidified alcohol which is not friendly to wiper blades or paint. I don't have a degree in chemistry but I think it is worth mentioning that if you can get by during most months with a dilute solution it would be healthier and cheaper all around. Why use a roofing hammer when a tack hammer will work.

  • April 17, 2022 10:24 PM
    Reply # 12712126 on 12696394

    Most washer fluids are pretty much the same old blue stuff.  I switched to Rain-X orange fluid a few years ago after using original Rain-X for close to 40 years.  Prestone makes an orange colored Rain-X knock-off now, and it seems to do just as good.  Some people claim that its bad for this or that, but they have no real evidence to back up what they are saying.  If it's good for the windshield of a 787, it's good enough for a Tesla!

  • April 06, 2022 8:51 AM
    Message # 12696394

    Hi!

    Does anyone know the brand of the original washer fluid in MY?

    Thanks!

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