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Old 09-03-2016, 09:41 AM
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Default Curious about disc weight.

Just curious, when a disc is offered in weights varying from 150-175g, does the manufacturer alter the process to intentionally get different weights, or is variance something that just happens and the manufacturer just weighs them and sorts them out after the fact? Again, just curious.
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Old 09-03-2016, 09:55 AM
THUGNIFICENT763 THUGNIFICENT763 is offline
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Originally Posted by wproct View Post
Just curious, when a disc is offered in weights varying from 150-175g, does the manufacturer alter the process to intentionally get different weights, or is variance something that just happens and the manufacturer just weighs them and sorts them out after the fact? Again, just curious.
There is no rhyme or reason to how manufacturers weigh their discs. It is up to you to do it. Most decent shops will at least have a scale for you to use.
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Old 09-03-2016, 09:58 AM
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Originally Posted by wproct View Post
Just curious, when a disc is offered in weights varying from 150-175g, does the manufacturer alter the process to intentionally get different weights, or is variance something that just happens and the manufacturer just weighs them and sorts them out after the fact? Again, just curious.
I'm pretty sure it's a little bit of both. They alter how much plastic they're injecting for sure but it doesn't seem to be an exact science. For example, Discraft doesn't seem to even try weighing the discs after the fact; they just put stickers with a 2-3 gram range on the discs.
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Old 09-03-2016, 10:29 AM
THUGNIFICENT763 THUGNIFICENT763 is offline
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Originally Posted by hugheshilton View Post
I'm pretty sure it's a little bit of both. They alter how much plastic they're injecting for sure but it doesn't seem to be an exact science. For example, Discraft doesn't seem to even try weighing the discs after the fact; they just put stickers with a 2-3 gram range on the discs.
This. Exactly why a scale is crucial.

I have heard that they do the lights, and then they add metal salts to the plastic to get the heavies, but there is no exact science to the weights that mold up. Once again, scale.

Last edited by THUGNIFICENT763; 09-03-2016 at 10:31 AM.
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Old 09-03-2016, 10:51 AM
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I weigh mine with a digital scale, and they're a different weight than the manufacturer says at least half of the time
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Old 09-03-2016, 11:17 AM
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Quote:
Originally Posted by wproct View Post
Just curious, when a disc is offered in weights varying from 150-175g, does the manufacturer alter the process to intentionally get different weights, or is variance something that just happens and the manufacturer just weighs them and sorts them out after the fact? Again, just curious.
The mold holds a specific amount of material. They can't put less plastic in to make it weigh less. They have to alter the composition of the material that gets injected int the mold.
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Old 09-03-2016, 01:05 PM
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From how Lat 64 stamps the weight on the plastic, I assumed it was done when injected, so it makes sense that weighting agents are used to varying degrees across the plastics. This is how MVP does the OM process to make it heavier.
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Old 09-03-2016, 09:23 PM
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I agree on the need for a decent set of scales to check the weight of the disc. I bought a scale at a very reasonable price and it seems quite accurate. Most discs weigh very close to the stated weight by the manufacturer. I bought them primarily to establish the weight on unmarked used discs. I'm pleased with the level of conversation on this thread.
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Old 09-04-2016, 07:31 PM
thechamp thechamp is offline
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The max weights are the discs to watch out for. Less than max weights are marked more accurately but slightly over max weight for a given mold might just be marked 175 or 180 etc. I've had many gateway putters marked 175 that weigh as much as 179.
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Old 09-05-2016, 06:01 PM
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I was thinking about this too and it is very apparent in legacy disc drivers. If you buy a 175 icon outlaw and an 167 outlaw, regardless of the color, it will look as if the top of the 167 is stretched. Definitely looks like the plastic was stretched.
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