We build a warter filter box for koi fish ponds using the, Ask an Expert

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We build a warter filter box for Koi fish ponds using the vinyl ester resin. The box dimension at the base are: 36" L x 12" W x 16" D. We use 3 layers of filberglass chop strand mat ( itchy!!) 1.5oz/ sq ft. Make the box open- topped (no lid).

The amount of resin is equal to the weight of the cloth.

We have a special " green vinyl ester resin" un promoted. That means we need to add another subtance ( cobalt) to it in order for it to set up when the catalyst is added. This resin weighs 8.9 LBS/ gal.

To mix for a 30 minute gel time at 77 geg. you would multiply the weight of the resin by 0.048 oz to get the amount of colbat to add.

How many gallons of vinyl ester does my uncle-in-law need in order to built this box?

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Statistics and Probability, Statistics

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