painting in greenhouse, humidity issue

Discussion in 'Paint and Body' started by 90FJ, Jan 24, 2013.

  1. 90FJ

    90FJ

    Messages:
    789
    fellow mud member painting a shop railing in his greenhouse, outdoor temp 44* and cranked the greenhouse heat to 65*

    live in Oregon so it's pretty wet, after a coat of Rustoleum self etch and a coat of their 2X hammered finish he says he can scrape the paint off with his fingernail. not tacky though.

    I'm thinking by raising the temp in the greenhouse he took the humidity outside of desirable levels.

    is he better off applying another coat in the greenhouse at the same temp?

    turning off the heat and opening the doors and applying another coat at 44*?

    should the paint set up better over time once it has the ability to cure?
  2. Splangy

    Splangy SILVER Star

    Messages:
    4,332
    Location:
    New Hampshire
    It might have something to do with the fact that he painted directly over self etching primer. You can guarantee yourself adhesion problems when doing that. There should be a coat of surfacer primer applied over the etching primer before topcoating. It might also have to do with the fact that he painted a car with rust-o-Leum!
  3. 90FJ

    90FJ

    Messages:
    789
    http://www.rustoleum.com/CBGProduct.asp?pid=397

    "Rust-Oleum® Self Etching Primer prepares bare metal, aluminum and fiberglass surfaces to promote maximum adhesion and smoothness of the top coat. This product is formulated to stop rust and is an essential step to achieve a professionally finished look."
  4. Joe_E

    Joe_E

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    3,342
    Location:
    the NJ word..
    What kind of heat?
    If burning propane, you are adding moisture to the air inside greenhouse.
  5. 90FJ

    90FJ

    Messages:
    789
    I think it's electric, but I'll ask him. Thanks poopdick.

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