"The layer I did without diluting has 1E10"
That seems to be way to high for an undiluted polish, probably due to the
fact that all polishes are certainly not "topical".
You must get the right stuff, Pro-stat or 1720.
I have some small amount of Prostat left, give me our adress so I can send a small bottle to you for free.
And do not worry about the layer thickness when it comes to the recommended floor polishes, instead worry to make sure it stays on the membrane for a few years.....
Regards, Jonas
That seems to be way to high for an undiluted polish, probably due to the
fact that all polishes are certainly not "topical".
You must get the right stuff, Pro-stat or 1720.
I have some small amount of Prostat left, give me our adress so I can send a small bottle to you for free.
And do not worry about the layer thickness when it comes to the recommended floor polishes, instead worry to make sure it stays on the membrane for a few years.....
Regards, Jonas
Dear Jonas
What's odd: Specified resistance is 1e6-1e7/sq
What specified wet layer thickness/application procedure would be? - the reply to the explicit inquiry says: use the brush or sprayer 🙁
I did put some of the coating on test piece (10x12cm, 1cm graphite contact strips) and spreaded with non-woven cloth. It was then dried by the specs.
Again, the coating is for INDUSTRIAL use and has to withstand common cleaners, mild solvents, scratching, bending etc.
BTW Pro-stat equivalent is on avail - next thing to test
P.S.Thanks for generous offer, please do not send anything - I'll figure it out
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You must get the right stuff, Pro-stat or 1720.
Regards, Jonas
Am I not getting something or what?
Below are the quotes
"1720-G 1 gallon in plastic jug (coats @1,200 ft2)"
"Deionized Water………………………………. (7732-18-5) 75-85%"
the rest is solid residual
1 gallon is 3.8 L, 1200 ft 2 is 120 m2, 1 L is 0.001 m^3
1/4 of a gallon is approx 1 L
If one spreads 1 L of something over the 120 sq m the result has to be
0.001/120=8.3e-6 m=8.3 micron. which is as thick as film itself
And this is the right staff?
Alex
Regards, Jonas
Am I not getting something or what?
Below are the quotes
"1720-G 1 gallon in plastic jug (coats @1,200 ft2)"
"Deionized Water………………………………. (7732-18-5) 75-85%"
the rest is solid residual
1 gallon is 3.8 L, 1200 ft 2 is 120 m2, 1 L is 0.001 m^3
1/4 of a gallon is approx 1 L
If one spreads 1 L of something over the 120 sq m the result has to be
0.001/120=8.3e-6 m=8.3 micron. which is as thick as film itself
And this is the right staff?
Alex
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Now I understand why ESL are that expensive... 🙂
Why would one see an offense where there is no one...🙁
10^10 coating is less than micron thick
Alex
Alexberg, Your calculation is elegant and correct, but when I measure the weight of a square meter membrane with dried ProStat coating, the figures shows a low 15-20% increase in weight.
This, I think, must mean about the same in increased thickness, from 6uM to 7.2 uM. If you have the time, try to measure the weight increase with your coating.
After all, it's not the added thickness that is important, it's the added weight!
If you use a big piece of membrane, you can see the difference on a simple pocket letter scale.
Prostat is a very silly name , no wonder it went out of production.....
This, I think, must mean about the same in increased thickness, from 6uM to 7.2 uM. If you have the time, try to measure the weight increase with your coating.
After all, it's not the added thickness that is important, it's the added weight!
If you use a big piece of membrane, you can see the difference on a simple pocket letter scale.
Prostat is a very silly name , no wonder it went out of production.....
By the way , some interesting stuff here:
Electrostatic Loudspeaker Systems ... - Google Patent Search
Paragraph 59 and 60 describes a printed coating...
Electrostatic Loudspeaker Systems ... - Google Patent Search
Paragraph 59 and 60 describes a printed coating...
Alexberg,
"If one spreads 1 L of something over the 120 sq m the result has to be
0.001/120=8.3e-6 m=8.3 micron. which is as thick as film itself
And this is the right staff?"
in your calculation of layerthickness, you should
account for the part that dissapears by drying.
Since the product contains 75-85 % water, the residue of
dry film will by max 25% of the calculated 8.3µ.
I think the dry film will be around 1.5 to 2 µ.
Edwin
"If one spreads 1 L of something over the 120 sq m the result has to be
0.001/120=8.3e-6 m=8.3 micron. which is as thick as film itself
And this is the right staff?"
in your calculation of layerthickness, you should
account for the part that dissapears by drying.
Since the product contains 75-85 % water, the residue of
dry film will by max 25% of the calculated 8.3µ.
I think the dry film will be around 1.5 to 2 µ.
Edwin
If that is the way Final used it in their products then we should probably be cautious. One of the common problems with their speakers (or so I've heard) was disappearing coating. This may be the reason they mention a conformal coating to protect the conductive layer. This is one of the problems when you try a new coating, how is it going to hold up over time when faced with high voltage?
Edwin, I think that Alexberg did a correct calculation, he means spreading one liter of the remaining solids.....without the water...
A quarter of a gallon is almost the liter - that's solid residue, or whatever left after 3/4 of a gallon (water) is gone.
So, 1 L or 0.001 qubic meter (of the residue) is being spead over 120 square meters...
Alex
I recommend to view this video. It shows the process of melting nylon coating on the diaphragm for an electrostatic loudspeaker.
YouTube - Diaphragm coating with nylon for Electrostatic loudspeakers
YouTube - Diaphragm coating with nylon for Electrostatic loudspeakers
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It is unreasonable to believe in everything on tube. Especially temperature wise... The trick is the REAL temperature.
Alex
real temperature to do what exactly? You say it like you know more about it.
I doubt the nylon is melting. And if it is the PET film will be ruined.
It seems that the heat shrinking is not exactly shrinking, also the latter could be found in various sources...
Unfortunately, the man who did it has sold speakers for unknown reasons🙁
This video is his gift... I hope not the farewell one, as it was with the guy who implemented the pleated design.
You may believe it or not. Anyways everybody got the hint...
As you have mentioned earlier in the thread, there are certain things that can not be disclosed...
Happy New Year
Alex
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melting nylon
[QUOTE = Аренд-Jan; 2028854] реальная температура делать то, что именно? Вы говорите, что вы хотели знать о ней больше.
Я сомневаюсь, нейлоновые тает. А если это фильм ПЭТ будет разрушена. [/ QUOTE]
What may be in doubt what they see. Technology Set me, and it works 100%. Indeed, an increase in melting temperature of nylon, then the PET membrane will be destroyed. Must withstand the melting temperature of nylon is extremely accurate here. You can control the temperature of thermocouple.
[QUOTE = Аренд-Jan; 2028854] реальная температура делать то, что именно? Вы говорите, что вы хотели знать о ней больше.
Я сомневаюсь, нейлоновые тает. А если это фильм ПЭТ будет разрушена. [/ QUOTE]
What may be in doubt what they see. Technology Set me, and it works 100%. Indeed, an increase in melting temperature of nylon, then the PET membrane will be destroyed. Must withstand the melting temperature of nylon is extremely accurate here. You can control the temperature of thermocouple.
melting nylon
What may be in doubt what they see. Technology Set me, and it works 100%. Indeed, an increase in melting temperature of nylon, then the PET membrane will be destroyed. Must withstand the melting temperature of nylon is extremely accurate here. You can control the temperature of thermocouple.
What may be in doubt what they see. Technology Set me, and it works 100%. Indeed, an increase in melting temperature of nylon, then the PET membrane will be destroyed. Must withstand the melting temperature of nylon is extremely accurate here. You can control the temperature of thermocouple.