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Old 10-02-2020, 01:53 PM   #1
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New Product: 3M 03584 Professional Rubberized Undercoating - 16 Oz

Protect the undercarriage of your RV with the 3M Professional Rubberized Undercoating. This product will prevent grit, road grime, or moisture from getting in and corroding your metal components.
  • The spray applies as a textured black finish that will not rust, chip away, or degrade over time due to weathering.
  • No dripping, running, or sagging after application.
  • Designed for use on cars, trucks, or RVs.
  • Sold as a 16 oz aerosol can.

Click here to learn more or buy --> 3M Undercoating.

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Old 10-02-2020, 03:11 PM   #2
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Winnebago Owners Club
Join Date: Aug 2014
Posts: 20
Timely, for me to ask a question...

I have noticed under the storage compartments of my Minnie Winnie Class C some chunks of paint knocked off by these stones, etc.

Is it OK to use a product like this right on there without any primer, etc?

And even on the inside of the storage compartments, since the metal is thin, often the paint chips off. What can be put on the inside?

Lastly, how far does a 16 ounce spray can go?

Dave, 2014 Minnie Winnie 31K, Louisville KY
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Old 10-13-2020, 03:03 PM   #3
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The spray can will go 20-25 sq ft. Yes you can use it underneath without any primer. I would not recommend applying it to the inside of the storage compartment. It is intended for undercarriages, wheel wells, and quarter panels.
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Old 11-07-2020, 12:45 PM   #4
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Location: Oak Island, North Carolina
Posts: 261
Undercoating 101...

Don't spray over will continue to "grow" and will be 10 times worse.
Oil treatment formulations would be better choice. Imho.
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