Window & joint Sealant

Discussion in 'RV Tips & Tricks' started by kaboomer, May 17, 2008.

  1. kaboomer

    kaboomer New Member

    Several people have recommended "Proflex RV" to seal my windows. As a contractor, I use "Proflex" silicone to seal up windows in houses. My question is:

    Is "Proflex RV" and "Proflex" sealants really the same thing?
     
  2. DL Rupper

    DL Rupper Senior Member

    Re: Window & joint Sealant

    Hey kaboomer, welcome to the forum. I'm waiting for the answer too. I'm getting ready to replace some of my RV window sealant with GE Silicone, so will hold off until the answer comes. Where do you get Proflex or Proflex RV?
     
  3. Grandview Trailer Sa

    Grandview Trailer Sa Senior Member

    Re: Window & joint Sealant

    Sorry, but I have not heard of that brand, curious myself.
     
  4. Guest

    Guest Guest

    Re: Window & joint Sealant

    well i can't commit on that brand ,, but i can say that the elastamere roofin stuff they sell at camp world for about 40 bucks ,, can be bought at lowes for about 15 bucks ,, the only diff, is the word RV ,, same label and same stuff ,, just no RV on it ,, ;) :laugh: :laugh: :laugh:
    bty i use window caulking ,, from a windshield supplier ,, i'll get the name as soon as i can remeber it ,, ;) :) :) :approve: :approve: :laugh:
     
  5. kaboomer

    kaboomer New Member

    Re: Window & joint Sealant

    Hey DL, thanks for the welcome. My suspicion is that Proflex RV and Proflex are the same product, but they bust you for extra $ at the RV dealership. I looked online and confirmed my suspicion. Here is what I found:


    Geocel Profle | Geocel Proflex RV
    |
    Viscosity Brookfield RVT-F 800 M cps | Viscosity Brookfield RVT-F 800 M cps
    Spindle Helipath Stand | Spindle Helipath stand
    (100 sec., 77° F) | (100 sec., 77ºF)
    Extrusion ASTM C 603-90 2 seconds | Extrusion ASTM C 603-90 2 seconds
    Elongation (Peak) ASTM D 412 870% | Elongation (Peak) ASTM D 412 200%
    Elongation (Peak) after 500 hours 1093% |
    |
    Tensile Strength (Peak) ASTM D 412 407 psi | Tensile Strength (Peak) ASTM D 412 100 PSI
    Cyclic Movement ASTM C 719 ±25% |
    Adhesion . | Adhesion
    Aluminum 19 P.L.I | Aluminum 10 P.L.I.
    Mortar 12 P.L.I. |
    Glass 20 P.L.I. | Glass 17 P.L.I.
    Wood 17 P.L.I. | Wood 17 P.L.I.
    Vinyl 12 P.L.I. |
    % Solids 62.5% | % Solids 60 %
    Tack Free 2 hours | Tack Free 2 hours
    Cure ( ¼” x ¼” bead) 5 days | Cure ( ¼” x ¼” bead) 3 days


    It appears that the regular Geocel Proflex has a higher rate of adhesion and tesile strength. The only down side is that it takes 2 days longer to completely cure. Basically, the regular Proflex appears better or equal in every aspect except cure time.
     
  6. kaboomer

    kaboomer New Member

    Re: Window & joint Sealant

    Sorry for the loss of formatting. As you look at my post, everytime you see a "|" it is the division between the two specs.
     
  7. DL Rupper

    DL Rupper Senior Member

    Re: Window & joint Sealant

    Hey kaboomer, is it better than GE silicone? It looks like the adhesion is good on most surfaces. It doesn't say if it will seal the joint/groove between a metal RV window frame and the fiberglass RV siding.
     
  8. kaboomer

    kaboomer New Member

    Re: Window & joint Sealant

    The GE Silicone I does not specifically mention adhesion to Fiberglass. GE Silicone II does not specifically mention fiberglass either, but does cite adhesion to plastic so I would feel confident that it will work well with fiberglass. GE Kitchen & Bath silicone II does say that it adheres to fiberglass.
     
  9. DL Rupper

    DL Rupper Senior Member

    Re: Window & joint Sealant

    Thanks for the info. :)
     
  10. trippinUSA

    trippinUSA New Member

    RE: Window & joint Sealant

    You might want to check out Dow Corning's silicone joint sealant. I don't know how it compares to GE silicone, but I know that it will adhere to many different materials and it has great thermal and UV resistance- which would be helpful for the RV.
    http://www.dowcorning.com/applications/search/default.aspx?R=259EN
     
  11. H2H1

    H2H1 Senior Member

    Re: Window & joint Sealant

    wow that post was over 2 years old :laugh:
     
  12. powderman

    powderman New Member

    Re: Window & joint Sealant

    It doesn't matter, info is info. I seriously doubt they changed formulation. ;)
     

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