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Topic: Rust alert. Coolant reservoir  (Read 1488 times) previous topic - next topic

Re: Rust alert. Coolant reservoir

Reply #20 –
Meant to say the POR15 paint was better then rustoleum paint,ospho and the metal prep are both acid based.

Re: Rust alert. Coolant reservoir

Reply #21 –
NCPTT | Comparative Study of Commercially Available Rust Converters

Your tax dollars are working to evaluate each of the above mentioned rust inhibitors. Phase 2 results will be available later in 2017. "The project's final goal will be to test the best two rust convertors with the addition to [sic] a painting system and test this until failure."

There is some worthwhile information in the link like primary ingredients & pH.
-Mike-

Re: Rust alert. Coolant reservoir

Reply #22 –
Interesting, Bob's '95 has sight glass our '99 doesn't. Finished yesterday total coolant loss, less then 1/2 gallon. Siphoned out of tank to coolant bottles I hadn't thrown away when I changed coolant. About 5 1/2 gals.
Edit: his doesn't have the low coolant sensor probably why no sight glass.

Re: Rust alert. Coolant reservoir

Reply #23 –
Reviving this old thread because I found something interesting on our coach.  I finally got around to looking at our tank, and discovered there is a sheet of some kind of plastic between the metal tank and the metal bulkhead to which it is bolted.  I didn't get around to unbolting the tank today, but I snapped a couple pics trying to show the plastic sheet.  Has anyone else run into this stuff?  I'm hoping the plastic may have prevented the heavy rust found on other coaches, since it prevents metal-to-metal contact between the tank and the bulkhead.  Once I get the tank pulled loose, I will report back.

Don't know if the photos really show the plastic...  It is "sandwiched" between the tank and the bulkhead, and held in place by the tank mounting bolts.

Re: Rust alert. Coolant reservoir

Reply #24 –
Don't know why FOT would install that plastic sheet on a 93 and not on a 95?
I just removed and repainted ours last weekend and no such separator was installed. Couldn't have been "cost reduction" on a 250K plus coach!
Sounds like a good idea, but maybe it didn't work?
Let us know what you find.

Re: Rust alert. Coolant reservoir

Reply #25 –
Quote from: Chuck & Jeannie –
Reviving this old thread because I found something interesting on our coach.  I finally got around to looking at our tank, and discovered there is a sheet of some kind of plastic between the metal tank and the metal bulkhead to which it is bolted.  I didn't get around to unbolting the tank today, but I snapped a couple pics trying to show the plastic sheet.  Has anyone else run into this stuff?  I'm hoping the plastic may have prevented the heavy rust found on other coaches, since it prevents metal-to-metal contact between the tank and the bulkhead.  Once I get the tank pulled loose, I will report back.

Don't know if the photos really show the plastic...  It is "sandwiched" between the tank and the bulkhead, and held in place by the tank mounting bolts.
Going to check ours in the morning....I recall seeing the same thing.....