Shine wrote:I think we have this straight, but I want to make certain - The 2:1 mix ratio is for volume, NOT weight.
Pumps are not as accurate as most graduated cups, but they are more convenient for smaller batches. Try using both together. For example for a 6 oz. batch; pump 4 oz of resin then look to see if your at 4 oz. on the cup, then 2 oz. hardener - then make sure your at 6.
The epoxies we sell are designed to be forgiving to the amateur, so unless there is a large mistake, you should be OK.
Joel
Thanks for the persistence with the difference between weight and volume. It shows the dedication you have in supporting this site and business.
I think I'm set with the scale. Upon someone else's advice, I created a spreadsheet with the correct mix ratio of 100g:43g for 50 +- different amounts with +- tollerance. That way if I add a few more grams than ideal I can check to see if it's within a 5% tollerance (which I believe is well below the accepted amount). I also added amounts for microballons and silica. Mixing all ingredients into one container makes for quick and clean work.
Jason wrote:
Give yourself a big present and make sure you've got some good sanders for the fairing process. That's where all the good looks are achieved or lost.
I think your right, though I don't think I'll be able to wait until Xmas to open it. I started this project by borrowing some tools from my father to save on the startup expense. I'm using his heavy duty disk and orbital sanders. They work good, but they are old and do not have vacuum. A coworker of mine was telling me about the one he has. It has a vacuum built in. He says it not only cleaner, but it does a much better job because it sucks the paper to the surface.