Quality Pen
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I read a couple guides and tried a search but what I came across was pretty ambiguous. Basically, I am trying to figure out how many blanks you can make with a gallon of Clear Polyester Casting Resin.
Thanks.
Thanks.
I read a couple guides and tried a search but what I came across was pretty ambiguous. Basically, I am trying to figure out how many blanks you can make with a gallon of Clear Polyester Casting Resin.
Thanks.
Oh sorry, I should add that it would be round pen blanks in PVC pipe. It seems like this method gives the least waste, no?
If you're casting blocks about 40-45.
If you're casting in pvc pipe about 60-65.
If you're casting your first couple of gallons.....much much less. (Unless luck is on your side.)
I figured my 3x5 block mold contains 8.5oz and gives me 3 blanks
A 3/4" pvc pipe for a 5.5" blank is about 1.9 ounces
My experience is around 60 to 65, so I agree with these 2 posts. One thing that comes into play is how many blanks you pour at a time, and how many colors. More colors = more waste. More blanks you pour at a time = less waste.I get 17 out of a quart - that would be 68 for a gallon.
Most of my blanks are 3/4 pvc 5 1/4" blanks.
(inner diameter of your pvc pipe) divided by (2)= radius of blank
(radius) x (radius) x (3.14159) x (pvc pipe mold length) = cubic inches in the blank
(cubic inches in blank) divided by (1.80469)= fluid ounces in blank
(128) divided by (fluid ounces in blank) = number of blanks per gallon
What did you say? I don't even know that language.
(inner diameter of your pvc pipe) divided by (2)= radius of blank
(radius) x (radius) x (3.14159) x (pvc pipe mold length) = cubic inches in the blank
(cubic inches in blank) divided by (1.80469)= fluid ounces in blank
(128) divided by (fluid ounces in blank) = number of blanks per gallon
What did you say? I don't even know that language.
(inner diameter of your pvc pipe) divided by (2)= radius of blank
(radius) x (radius) x (3.14159) x (pvc pipe mold length) = cubic inches in the blank
(cubic inches in blank) divided by (1.80469)= fluid ounces in blank
(128) divided by (fluid ounces in blank) = number of blanks per gallon
My goal is to get 250 blanks per five gallon bucket of PR. That works out to 50 blanks per gallon or 2.5 ounces per 7/8 x7/8x5 inch blank.
Sometimes I get more (due to embedded casting), sometimes less because of mistakes. But 50 blanks per gallon is a pretty close number.
(inner diameter of your pvc pipe) divided by (2)= radius of blank
(radius) x (radius) x (3.14159) x (pvc pipe mold length) = cubic inches in the blank
(cubic inches in blank) divided by (1.80469)= fluid ounces in blank
(128) divided by (fluid ounces in blank) = number of blanks per gallon
(inner diameter of your pvc pipe) divided by (2)= radius of blank
(radius) x (radius) x (3.14159) x (pvc pipe mold length) = cubic inches in the blank
(cubic inches in blank) divided by (1.80469)= fluid ounces in blank
(128) divided by (fluid ounces in blank) = number of blanks per gallon
ROTFLMAO!
I KNEW the old math professor WOULDN'T "let it go" with just fill the tube with water and measure it, when a PERFECTLY GOOD volume equation opportunity presented itself:biggrin:
Do these matter? which is preferable? ThanksAlso there is thin wall and thick wall pvc water pipe. Schedule 40 or 80?
I use schedule 40 thats 3/4". That's the thick stuff. Blanks come out slightly thicker than 3/4.Do these matter? which is preferable? ThanksAlso there is thin wall and thick wall pvc water pipe. Schedule 40 or 80?
PV=nRTMaybe it is time to dig out the Ideal Gas Laws and investigate just how much those pressure pots actually do compress air bubbles...
PV=nRTMaybe it is time to dig out the Ideal Gas Laws and investigate just how much those pressure pots actually do compress air bubbles...
I use schedule 40 thats 3/4". That's the thick stuff. Blanks come out slightly thicker than 3/4.Do these matter? which is preferable? ThanksAlso there is thin wall and thick wall pvc water pipe. Schedule 40 or 80?
(inner diameter of your pvc pipe) divided by (2)= radius of blank
(radius) x (radius) x (3.14159) x (pvc pipe mold length) = cubic inches in the blank
(cubic inches in blank) divided by (1.80469)= fluid ounces in blank
(128) divided by (fluid ounces in blank) = number of blanks per gallon
PV=nRTMaybe it is time to dig out the Ideal Gas Laws and investigate just how much those pressure pots actually do compress air bubbles...
But you need to add the factors for increased solubility at increased pressure and how much was already in solution.....
Ed