Vinylester layup over H80 core 2 sides at once

Discussion in 'Fiberglass and Composite Boat Building' started by FishStretcher, Apr 27, 2014.


  1. FishStretcher
    Joined: Oct 2011
    Posts: 93
    Likes: 4, Points: 0, Legacy Rep: 33
    Location: On the Water

    FishStretcher Junior Member

    I just posted in your other thread. It seems I have this stuff:

    http://www.brenntagspecialties.com/en/downloads/Products/Composites/AOC/Vinyl_Ester_Resins/[/URL]

    It is pretty runny, (250 cps viscosity) but either it increases in viscosity quickly then plateaus prior to gel, or simply the styrene boils off, making it more viscous pretty quickly. I played with it again tonight and added another 6-7% styrene, mostly stretching out the last of my resin before I get another shipment. It still thickens faster than I can comfortably work when I am dealing with more than a pint at a time rolling it into 17 oz biax or DBM.

    The stuff I have is very fresh- he gets it right off the railcar. Stuff from an internet retailer might be a lot older and slower to kick. I noticed this stuff was a lot slower and took a lot more MEKP once it was ~6 months old, even stored at under 70F in the dark.
     
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