By HansenJC - 2/22/2019 7:58:55 PM
In a very old topic, the calculations for resin usage were address by Paul Statham in a chart. THANK YOU Paul! But until I saw this topic, I had not seen any data for the infusion mesh and how much resin must be prepared and used for the mesh. I expect it is different for each type of mesh, but where is this data found? Is it typically listed under the specs for the mesh?
Also, Paul wrote that there was a formula for calculating the resin usage, but all I saw in that topic was the chart and no formula. Can someone point me to a complete formula?
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By HansenJC - 2/27/2019 2:19:49 PM
Warren,
I have 40+ years of experience in creating composite products in another industry unrelated to carbon fiber or fiberglass. My composite materials included thousands of constituent parts and materials. And while most of the materials were commodities, we had no luxury of storage space so we ordered the correct amount to finish the job and not have leftover materials that would become waste. So, I come from a different background that makes it hard not to look for well crafted formulas that are not based on rules of thumb. I and my competitors were able to control our materials so well that we never had to go back to the well or as you call it topping off the resin pot. It was so unprofitable to reorder materials to be shipped to the jobsite that it was part of our ethos to never order less than needed, and never order so much that we would throw away anything. Material variances were typically within 1.5% for my projects. Only a few selected sub assemblies had waste factors approaching 5%. So, forgive me for looking for tighter formulas. It is in my nature. I will adjust my thinking to conform to the carbon fiber materials and processes.
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