help calculating cost

Signed-In Members Don't See This Ad

darrin1200

Member
Joined
Mar 17, 2010
Messages
1,922
Location
Lyn, Ontario, Canada
I am hoping someon can help me out. I am starting to pour more castings, but I forgot to weigh the 2gal kit before I started. I am trying to figure out the cost of resin per blank, which should be easy because I make the blanks by weight. My last pour used 428g resin, 25 drops of dye and 1/4tsp of gold pearl.

I found a spot online that said the kit weighs16lbs, but that seems a little much.Can someone out there tell me what the weight of a 2gal Alumilite Water Clear kit is, excluding the bottles preferably.

Thanks

P.S. I know, no pictures, it didn't happen. I will try to post some pictures from the results of my last two pours later today. I'm getting ready for my first Art show at the end of the month.
 
Signed-In Members Don't See This Ad
May I ask why do you need to know??? What difference does it make??? If you are planning on selling your blanks, you sell for what they are worth. Not by dividing the resin per blank. Just my thought.
 
May I ask why do you need to know??? What difference does it make??? If you are planning on selling your blanks, you sell for what they are worth. Not by dividing the resin per blank. Just my thought.

He clearly stated he wants to know what the cost is per blank. He did not ask for opinions on pricing blanks. He said nothing about cost as a selling point. Any experienced business person wants to know material and production costs. Why are you concerned about the OP's approach to production while offering no help to his question?
 
16 lbs. is probably not to far off. Water weighs 8.5 per gallon so it should be around that somewhere. (just my own opinion. Just a guess on my part.)
 
May I ask why do you need to know??? What difference does it make??? If you are planning on selling your blanks, you sell for what they are worth. Not by dividing the resin per blank. Just my thought.

He clearly stated he wants to know what the cost is per blank. He did not ask for opinions on pricing blanks. He said nothing about cost as a selling point. Any experienced business person wants to know material and production costs. Why are you concerned about the OP's approach to production while offering no help to his question?


Why is it people want to attack me all the time??? I am getting tired of this. I want to help and that is why I asked the question. Let me explain something being you seem to know it all Larry. You contradict yourself in your own statement. He wants to know the cost per blank and it has nothing to do about selling them.Then why do you need to know??? Just buy the stuff and us it. Material used is a small factor in determining the final cost. Unless he is making some special brew and it sure did not sound that way then the basic selling point of said blanks is out there already. Just look around to the many people and vendors that sell blanks. You will always have the experimenting factor when making your own blanks. You will always have the oops factor when making your own blanks. You have the competition factor if making your own blanks for sale. So I would have like to heard a bit more from the OP if he chose.

Maybe this will help.

http://www.penturners.org/forum/f43/what-cost-per-blank-90081/


http://www.penturners.org/forum/f43/alumilite-versus-poly-resin-4829/
 
I am hoping someon can help me out. I am starting to pour more castings, but I forgot to weigh the 2gal kit before I started. I am trying to figure out the cost of resin per blank, which should be easy because I make the blanks by weight. My last pour used 428g resin, 25 drops of dye and 1/4tsp of gold pearl.

I found a spot online that said the kit weighs16lbs, but that seems a little much.Can someone out there tell me what the weight of a 2gal Alumilite Water Clear kit is, excluding the bottles preferably.

Thanks

P.S. I know, no pictures, it didn't happen. I will try to post some pictures from the results of my last two pours later today. I'm getting ready for my first Art show at the end of the month.
If I wanted to know something like that I would ask Mesquiteman first. He probably has more knowledge about stuff like that that most of here added together.
 
May I ask why do you need to know??? What difference does it make??? If you are planning on selling your blanks, you sell for what they are worth. Not by dividing the resin per blank. Just my thought.

He clearly stated he wants to know what the cost is per blank. He did not ask for opinions on pricing blanks. He said nothing about cost as a selling point. Any experienced business person wants to know material and production costs. Why are you concerned about the OP's approach to production while offering no help to his question?


Why is it people want to attack me all the time??? I am getting tired of this. I want to help and that is why I asked the question. Let me explain something being you seem to know it all Larry. You contradict yourself in your own statement. He wants to know the cost per blank and it has nothing to do about selling them.Then why do you need to know??? Just buy the stuff and us it. Material used is a small factor in determining the final cost. Unless he is making some special brew and it sure did not sound that way then the basic selling point of said blanks is out there already. Just look around to the many people and vendors that sell blanks. You will always have the experimenting factor when making your own blanks. You will always have the oops factor when making your own blanks. You have the competition factor if making your own blanks for sale. So I would have like to heard a bit more from the OP if he chose.

Maybe this will help.

http://www.penturners.org/forum/f43/what-cost-per-blank-90081/


http://www.penturners.org/forum/f43/alumilite-versus-poly-resin-4829/
John what the op said he wants to know is the "cost of resin per blank". Nothing else. You challenged the OP by asking "what do you want to know that for?", you did not answer his question.
 
Last edited:
Hi Darren!

There is more than one way to skin this cat.

Since you do not have a starting weight, estimate the level that the liquid was when you opened the bottle. Then, calculate the volume (length times width, times height). Multiply this times two, cause you got two bottles (a and b).

Figure the volume of your mold, in square inches. If the mold is an unusual shape, fill it with water, then pour the water into an easily measured container. Divide the above number by the volume per mold, you know how many pours you will get. Divide the purchase cost by the number of pours, you know your APPROXIMATE cost per pour.

Next time you buy a full bottle, remember to weigh it to confirm.
 
Last edited:
May I ask why do you need to know??? What difference does it make??? If you are planning on selling your blanks, you sell for what they are worth. Not by dividing the resin per blank. Just my thought.

He clearly stated he wants to know what the cost is per blank. He did not ask for opinions on pricing blanks. He said nothing about cost as a selling point. Any experienced business person wants to know material and production costs. Why are you concerned about the OP's approach to production while offering no help to his question?


Why is it people want to attack me all the time??? I am getting tired of this. I want to help and that is why I asked the question. Let me explain something being you seem to know it all Larry. You contradict yourself in your own statement. He wants to know the cost per blank and it has nothing to do about selling them.Then why do you need to know??? Just buy the stuff and us it. Material used is a small factor in determining the final cost. Unless he is making some special brew and it sure did not sound that way then the basic selling point of said blanks is out there already. Just look around to the many people and vendors that sell blanks. You will always have the experimenting factor when making your own blanks. You will always have the oops factor when making your own blanks. You have the competition factor if making your own blanks for sale. So I would have like to heard a bit more from the OP if he chose.

Maybe this will help.

http://www.penturners.org/forum/f43/what-cost-per-blank-90081/


http://www.penturners.org/forum/f43/alumilite-versus-poly-resin-4829/
John what the op said he wants to know is the "cost of resin per blank". Nothing else. You challenged the OP by asking "what do you want to know that for?", you did not answer his question.


Again Smitty?????????????????????????????? Man this is rediculous. Time for me to take a step back.

Look at the first link in the post you just quoted and eat your words.
 
Last edited:
http://www.penturners.org/forum/f43/density-alumilite-47292/index2.html

That may help you out.

But if you're asking for a breakdown on the cost of dye and mica per blank......good luck.

Many people can probably get you a good estimate on the cost of alumilite resin per blank.

I know that for PR that each 5.5" round blank uses about 1.65 ounces of PR. I can get about 60-70 3/4" round blanks from 1 gallon of PR if I don't have any waste.

For my rectangular block that is 4.5" x 5.5" I use about 14.5 to 15 ounces of PR to get 4 blanks that are about 1"x1"x5.5" or 5 blanks that are 3/4" square. or about 35-45 blanks per gallon of PR.

It should be about the same per gallon of alumilite.

I've just figured for alumilite to pour 7.25-7.5 ounces of part A in one cup. Weigh it and pour the same weight into another cup for part B.
 
May I ask why do you need to know??? What difference does it make??? If you are planning on selling your blanks, you sell for what they are worth. Not by dividing the resin per blank. Just my thought.

He clearly stated he wants to know what the cost is per blank. He did not ask for opinions on pricing blanks. He said nothing about cost as a selling point. Any experienced business person wants to know material and production costs. Why are you concerned about the OP's approach to production while offering no help to his question?


Why is it people want to attack me all the time??? I am getting tired of this. I want to help and that is why I asked the question. Let me explain something being you seem to know it all Larry. You contradict yourself in your own statement. He wants to know the cost per blank and it has nothing to do about selling them.Then why do you need to know??? Just buy the stuff and us it. Material used is a small factor in determining the final cost. Unless he is making some special brew and it sure did not sound that way then the basic selling point of said blanks is out there already. Just look around to the many people and vendors that sell blanks. You will always have the experimenting factor when making your own blanks. You will always have the oops factor when making your own blanks. You have the competition factor if making your own blanks for sale. So I would have like to heard a bit more from the OP if he chose.

Maybe this will help.

http://www.penturners.org/forum/f43/what-cost-per-blank-90081/


http://www.penturners.org/forum/f43/alumilite-versus-poly-resin-4829/
John what the op said he wants to know is the "cost of resin per blank". Nothing else. You challenged the OP by asking "what do you want to know that for?", you did not answer his question.


Again Smitty?????????????????????????????? Man this is rediculous. Time for me to take a step back.

Look at the first link in the post you just quoted and eat your words.
John, you wondered why you were "attacked"...I told you.

Read what the OP asked for. Then read your first post. Your first post reads like you are challenging the OP for asking the question. "May I ask why do you need to know??? What difference does it make???" doesn't read like you are trying to help.
 
Guys please. No need for personal attacks. There are a number of sides to look at and realize that others will do things different than you do. This makes us grow and develop.
 
Hi Darren!

There is more than one way to skin this cat.

Since you do not have a starting weight, estimate the level that the liquid was when you opened the bottle. Then, calculate the volume (length times width, times height). Multiply this times two, cause you got two bottles (a and b).

Figure the volume of your mold, in square inches. If the mold is an unusual shape, fill it with water, then pour the water into an easily measured container. Divide the above number by the volume per mold, you know how many pours you will get. Divide the purchase cost by the number of pours, you know your APPROXIMATE cost per pour.

Next time you buy a full bottle, remember to weigh it to confirm.
If I wanted to know what the OP asked, Because a gallon is a measure of volume not weight --

I would simply take a 1 cup measuring cup (a measuring cup is also a volume measure)...weigh it empty fill it to the 1 cup mark and weigh it again. Subtract the empty cup weight from the full cup weight to get the fluids dry weight. There are 16 cups in a gallon by volume so you multiply the fluids dry weight by 16 and you have the dry weight of a gallon of the fluid. do this for each of the two liquids then add the results and divide by two.
 
Last edited:
I found a spot online that said the kit weighs16lbs, but that seems a little much.Can someone out there tell me what the weight of a 2gal Alumilite Water Clear kit is, excluding the bottles preferably.

Darrin I just weighted the unopened gallons of water clear that I have here -

A - 8 lbs 4.5 oz
B - 8 lbs 15.5 oz

I did weigh the above liquid in (the original) containers. :biggrin: But hopefully the weights I listed below will also be of some help.

Alumilite gallon cap - 0.2 oz (ea)
Empty plastic gallon container (lighter weight, non OEM) - 5.0 oz (ea)
 
Sorry everyone. My intention was not to start a war. As a registered business I am required to keep detailed records of the materials in and out. For pens that go into my inventory, I need to apply a cost of manufacture, which includes all material. I also need this for insurance. I was informed that they will not reimburse me the retail value of inventory list, only the value of the material to replace it

That said, I have heard people mention calculating the cost per gram so I figured someone would already know the weight of the kit. Why reinvent the wheel.

That said, I guess I'll try curtis, if that doesn't work I'll measure and calculate.

I only mentioned the other components as info regarding the process I was doing.

Thanks all.
 
Thanks Dawn. That is exactly what I was looking for.

That means, in Canadian, one kit is about 7200 grams:biggrin:

I have a couple of pen paraphenilia projects that are going to use a quite bit, and this will help with the costing.
 
Back
Top Bottom