Ratio. The ratio range for catalyst to resin is 1 to 2 percent hardener to the total volume of resin to be used. For example, four drops of hardener will be 1 percent of 1 ounce of resin.Click to see full answer. Accordingly, how do you mix fiberglass resin and hardener?Set the fiberglass in a spot that is easily within reach. Add liquid hardener and resin in a small bowl in proportions as recommended by the manufacturer. Mix the two well using a plastic spoon or knife. Add the resin and hardener to the fiberglass cloth strips using the plastic spoon or knife used to stir the mixture.Also Know, what happens if you put too much hardener in fiberglass resin? Adding too much of either resin or hardener will alter the chemical reaction and the mixture will not cure properly. In this way, how much resin do I need for fiberglass? General Formula for coverage of Epoxy resin to fiberglass cloth. A general formula is to plan a ratio of 1:2.5 resin. This means for every ounce of cloth, you use 2.5 ounces of resin in a total of about 3 coats.How much hardener do you add to polyester resin?POLYESTER RESIN/GELCOAT IS CATALYZED WITH MEKP (METHYL ETHYL KETONE PEROXIDE). THE RATIO IS APPROXIMATELY ONE OUNCE OF HARDENER PER GALLON OF RESIN. USE THE FOLLOWING RATIOS FOR SMALLER AMOUNTS. THESE AMOUNTS ARE EASILY MEASURED IN THE OUNCE CUP WHICH IS SUPPLIED WITH THE RESIN.
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