Author Topic: Viscosity cup page ... is falcon about?  (Read 10817 times)

Offline Jamesrl

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Re: Viscosity cup page ... is falcon about?
« Reply #15 on: March 08, 2013, 08:26:05 PM »
Just been looking at the winter addatives page and it's obvious KH used a viscosity cup for the tests.

What did you use Keith?

You've answered your own question, a viscosity cup.

Offline Julian

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Re: Viscosity cup page ... is falcon about?
« Reply #16 on: March 08, 2013, 09:08:03 PM »
Doh, silly me!

So they're all the same dimensions with the same size hole then?
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Offline Jamesrl

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Re: Viscosity cup page ... is falcon about?
« Reply #17 on: March 08, 2013, 09:18:10 PM »
Doh, silly me!

So they're all the same dimensions with the same size hole then?

Dimensions are irrelevant, A viscosity cup is a viscosity cup innit. 

Offline Julian

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Re: Viscosity cup page ... is falcon about?
« Reply #18 on: March 08, 2013, 09:22:03 PM »
Thought we were trying to arrive at standard cup or container.  If you are only making comparisons with the same cup, yes, I'd agree.
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Offline Dickjotec

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Re: Viscosity cup page ... is falcon about?
« Reply #19 on: March 08, 2013, 09:53:13 PM »
For a standard cup how about a length of copper pipe with a drilled stop end?
Dick
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Offline Julian

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Re: Viscosity cup page ... is falcon about?
« Reply #20 on: March 08, 2013, 10:07:01 PM »
Nice and standard, but this is one for paint ...



I'd guess we need to be looking for a similar shape.  I recon the cone is preferable to a flat bottom to ensure all the fluid gets drained.  I think Jim was on the right track with a pop bottle.
« Last Edit: March 08, 2013, 10:08:38 PM by Julian »
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Offline Dickjotec

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Re: Viscosity cup page ... is falcon about?
« Reply #21 on: March 09, 2013, 08:49:23 AM »
Nice and standard, but this is one for paint ...



I'd guess we need to be looking for a similar shape.  I recon the cone is preferable to a flat bottom to ensure all the fluid gets drained.  I think Jim was on the right track with a pop bottle.

Hear what you say but a 22mm stop end is no flatter than a pop bottle lid and can be domed out if wanted. The hole size, which I think is the most important for uniformity, will also be more accurate when drilled in copper than plastic.
Dick
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Offline julianf

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Re: Viscosity cup page ... is falcon about?
« Reply #22 on: March 09, 2013, 09:41:26 AM »
I feel like i might be missing somthing, but i think that the chance of making a 'standard' by drilling holes is, well, unlikley?

Isnt the key to just calibrate whatever container is made?  Ie find the level that it needs to be filled to to empty in 25 seconds with a 25sec sample / temp?
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Offline Dickjotec

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Re: Viscosity cup page ... is falcon about?
« Reply #23 on: March 09, 2013, 01:50:44 PM »
I feel like i might be missing somthing, but i think that the chance of making a 'standard' by drilling holes is, well, unlikley?

Isnt the key to just calibrate whatever container is made?  Ie find the level that it needs to be filled to to empty in 25 seconds with a 25sec sample / temp?

I think a standard sized hole is the starting point, different sized holes will have different effects as the viscosity changes and while any hole can be calibrated to one viscosity, as you say, there is no guarantee that  two with different sized holes will remain calibrated with different viscosities. With a standard hole the device can be tuned as you suggest.
Realistically I think it unlikely that we will be able to rely on data from different cups when the viscosities are close together.
Dick
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Offline K.H

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Re: Viscosity cup page ... is falcon about?
« Reply #24 on: March 09, 2013, 04:06:59 PM »
Nice and standard, but this is one for paint ...



I'd guess we need to be looking for a similar shape.  I recon the cone is preferable to a flat bottom to ensure all the fluid gets drained.  I think Jim was on the right track with a pop bottle.
I did reply on page 1, yes a cup very similar to that pictured from my spray set

Offline K.H

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Re: Viscosity cup page ... is falcon about?
« Reply #25 on: March 09, 2013, 04:09:05 PM »
As i have already posted up findings with my cup would it make sense to base it around that one?

Offline Julian

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Re: Viscosity cup page ... is falcon about?
« Reply #26 on: March 09, 2013, 04:15:27 PM »
Missed that, sorry ... so how big is your hole!
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Offline K.H

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Re: Viscosity cup page ... is falcon about?
« Reply #27 on: March 09, 2013, 07:07:42 PM »
Missed that, sorry ... so how big is your hole!
I will put a drill bit up it tomorrow!

Offline Jamesrl

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Re: Viscosity cup page ... is falcon about?
« Reply #28 on: March 09, 2013, 07:36:17 PM »
Missed that, sorry ... so how big is your hole!
I will put a drill bit up it tomorrow!

Don't forget to warm it up and mind your haemorrhoids when inserting.