Is there any place to look up the weight (vs volume in fluid ounces) of SPI products?

J

Joelk

I would like to mix my paint/primers, etc. by weight instead of pouring into containers and measuring.

I am using the Dekups system and would like to be able to use a digital scale to mix paint/activator/reducer. It would be much more accurate and reduce waste/cleanup.

If I knew the weight of a fluid ounce of each product I could calculate how much of each product I would need to get the correct ratio.

I can measure the weights myself(fill container with X fluid ounces of each product and weigh), but this would be a lot of extra work and waste some product in the process.

Any place I can lookup the "dry weight" of a fluid ounce of each SPI product?
 
NO! I use to break all the products down and about 8 years a real good shop in MS hired a new painter as a third painter and his math left something to be desired, screwed up an allover and I have never given out the figures again and I will not period as, I took the blame for the painters screw up and lost a good customer.
 
The other option you have is to compute the numbers yourself, carefully get the weight of whatever part A and part B while using a mixing cup. I used to rely on this when I was repairing a bunch of bumpers for a car rental company and never had a problem. It saved me a lot of time and waste by avoiding the mixing cups in many situations.

I reckon for bigger jobs and more serious work than rental cars you'd be better sticking up to measuring cups.

But like Barry has stated, do at your own risk and make sure you don't screw up your math.

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The other option you have is to compute the numbers yourself, carefully get the weight of whatever part A and part B while using a mixing cup. I used to rely on this when I was repairing a bunch of bumpers for a car rental company and never had a problem. It saved me a lot of time and waste by avoiding the mixing cups in many situations.

I reckon for bigger jobs and more serious work than rental cars you'd be better sticking up to measuring cups.

But like Barry has stated, do at your own risk and make sure you don't screw up your math.
 
Jorge M.;31883 said:
The other option you have is to compute the numbers yourself, carefully get the weight of whatever part A and part B while using a mixing cup. I used to rely on this when I was repairing a bunch of bumpers for a car rental company and never had a problem. It saved me a lot of time and waste by avoiding the mixing cups in many situations.

I reckon for bigger jobs and more serious work than rental cars you'd be better sticking up to measuring cups.

But like Barry has stated, do at your own risk and make sure you don't screw up your math.
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This process on a gram scale works very well and remember slow activator will be different then fast or medium as the solvent all have different weights.
My disadvantage is I can give say 3 or 4 breakdowns, like quart mix, pint mix etc. but then must rely on the painter to do the math to break that down from there.
Paint companies can incorporate this in the mixing program and I can't as don't have a mixing program.
I think for the normal everyday or occasional painter, there is nothing better then a mixing cup.
 
I know it was mentioned in a thread somewhere , but is there a certain brand of cups to use? In that thread there was some brands cups that were not very accurate.
I'm using Sherwin Will. cups , but may have ckeck them a against an E-z mix to verify if either is off.
 
i use a generic cup. and only use the volume numbers not the 4-1 or 4-2. really does not matter who's cup as they are all pretty close. i prefer a stick to any of them . i use to be able to buy some cheap plastic storage cups at wallyworld but they stopped selling them.
 
i have epoxy and a few other things broken down in weights. i just did like was posted and poured say 6oz of each product and measured it on the gram scale. i use basf's smartrack software and use the custom formula section where i can just punch in how many ounces of primer i want and it spits me out a formula for the scale. of course there are no spi products in the basf software so i have to use a basf product as a "place holder". im sure basf would love i am using their software for spi products lol. my jobber as well since he pays $400 per qtr for the software license for me. :)
 
I do what Jm does, but with the Euro clear. But Barry doesn't recommend it for the average users. If someone want to do things this way, the best way to get a more accurate weight is when mixing a large amount.
 
No source is not reliable in this regard. Only way out is to personally measure the products. This is the most accurate figures and we can easily trust on such measurements.
Gram scales are the best option to Weight such article or measure such stuff..!
 
When mixing small amounts I just have a couple of small Pyrex cups I got at Walmart a 1oz and a 3oz and mix with them. When done I throw them in the lacquer thinner bucket and fish them out when I clean my gun.
 
One dumb*ss painter has to ruin it for everyone, forever. This makes me unhappy... I still want to have this information, just like I have for every other product I use.
 
shine your sharing is good. I was regularly searching about this one and i found "My Scale Store" a very reliable source from where i could get wide range of scales. They have all kind of scales and i have recently used there food scale which is better than the other one that i have been used before. you guys can also try.
 
I think there are many digital scale on ebay that help you in measuring fluid as well as other solid things that you want to weight. I have bought one from ebay last month in $50 dollars which help me in getting accurate fluid measurement.
 
I recently purchased Brecknell LPS-15 its a potion control scale which can measure in lb, kg, lb/oz. And provide accurate results but its expensive one i have bought that in $200. It can be operated on both Battery or AC power.
 
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