Trying to determine resin to glass ratio

Discussion in 'Materials' started by chowdan, Jun 20, 2020.

  1. chowdan
    Joined: Jul 2008
    Posts: 90
    Likes: 2, Points: 8, Legacy Rep: 10
    Location: Seattle WA

    chowdan 1980 PAC41 Liveaboard

    Title says it all. Trying to figure out the resin to glass ratio on this new mount I just made for my windlass.
     
  2. Blueknarr
    Joined: Aug 2017
    Posts: 841
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    Location: Colorado

    Blueknarr Senior Member

    Did you record the weights of the glass and resin you used before you mixed them to together?
     
  3. chowdan
    Joined: Jul 2008
    Posts: 90
    Likes: 2, Points: 8, Legacy Rep: 10
    Location: Seattle WA

    chowdan 1980 PAC41 Liveaboard

    I unfortunately only have the weight of the glass and the total weight after cured. I did not think about weighing the resin before:(

    Weight of glass alone was just over 9lbs(144.31 oz). Total weight post cure is 16lbs 9oz.
     

  4. Blueknarr
    Joined: Aug 2017
    Posts: 841
    Likes: 160, Points: 43
    Location: Colorado

    Blueknarr Senior Member

    You did right.

    Converting everything to oz
    Total weight of 265oz minus 144oz of glass leaves 121oz of resin.
    Dividing glass weight (144) by resin weight (121) gives 1.19 which rounds to 1.20. This converts into a fraction of 6/5.

    So your glass to resin ratio is very close to 6:5.
     
    chowdan likes this.
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