Mylar Thickness ??

ERICSPEEd · 26th April 2005, 12:52 PM

I have a roll of Mylar I think it's somewhere between 3 - 5 mil (might be way off) on a large roll (about 5' wide by 10 ~ 20', once worked at a screen printing chemical company) and wondered what thickness is optimal for esl diaphram?

Thanks in advance,

Eric

SY · 26th April 2005, 01:15 PM

0.25 mil is optimum; 0.5 mil is usable but will generally show a rolloff in the top octave. Roger West found that out the hard way...

ERICSPEEd · 26th April 2005, 03:50 PM

when you use "0." are we talkin' saran-wrap thin?

SY · 26th April 2005, 03:56 PM

Thinner. Saran Wrap (which no longer contains Saran!) typically runs 2 or 3 mils.

ERICSPEEd · 26th April 2005, 04:31 PM

Wow that's thin!

LineSource · 26th April 2005, 06:28 PM

2 MICRON = 2E-6 meters thick Mylar is used in the Sound Lab ESLs.

4 MICRON =4E-6 meters thick Mylar is frequently used in DIY, as it is more robust and can withstand manual application techniques of a high resistive coating. 5-6 micron Mylar is another common ESL thickness.

1 mil = 25.4 microns

jackinnj · 26th April 2005, 07:46 PM

Quote:

Originally posted by SY
Thinner. Saran Wrap (which no longer contains Saran!) typically runs 2 or 3 mils.

what? no more vinylidene chloride ? many of the Dow consumer products are "no more".

SY · 26th April 2005, 09:09 PM

Dow sold the brand name for the film (not the resin) to another company, who immediately subbed a cheaper resin. Of course the excuse was to make it more "ecological." Sure, you bet. Saran resin is still PVDC and still Dow.

ERICSPEEd · 27th April 2005, 01:58 AM

so is it 0.4 mil or 4 mil?

"4" used as example only

what i have is about twice the thickness(may be more) of saran-wrap. would that be unusable?

ABJensen · 27th April 2005, 08:46 AM

I use paper (20my) is way better than any plastic type matirial.

Andre´ Jensen

26th April 2005, 12:52 PM	#1
ERICSPEEd diyAudio Member Join Date: Dec 2003 Location: Head of the Lakes	Mylar Thickness ?? I have a roll of Mylar I think it's somewhere between 3 - 5 mil (might be way off) on a large roll (about 5' wide by 10 ~ 20', once worked at a screen printing chemical company) and wondered what thickness is optimal for esl diaphram? Thanks in advance, Eric __________________ I thought a signature was an abstract form of cursive?

26th April 2005, 01:15 PM	#2
SY diyAudio Moderator Join Date: Oct 2002 Location: Chicagoland Blog Entries: 1	0.25 mil is optimum; 0.5 mil is usable but will generally show a rolloff in the top octave. Roger West found that out the hard way... __________________ If there's a sucker born every minute, where do the rest of them come from?

26th April 2005, 03:50 PM	#3
ERICSPEEd diyAudio Member Join Date: Dec 2003 Location: Head of the Lakes	when you use "0." are we talkin' saran-wrap thin? __________________ I thought a signature was an abstract form of cursive?

26th April 2005, 03:56 PM	#4
SY diyAudio Moderator Join Date: Oct 2002 Location: Chicagoland Blog Entries: 1	Thinner. Saran Wrap (which no longer contains Saran!) typically runs 2 or 3 mils. __________________ If there's a sucker born every minute, where do the rest of them come from?

26th April 2005, 04:31 PM	#5
ERICSPEEd diyAudio Member Join Date: Dec 2003 Location: Head of the Lakes	Wow that's thin! __________________ I thought a signature was an abstract form of cursive?


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

26th April 2005, 06:28 PM	#6
LineSource diyAudio Member Join Date: Sep 2003 Location: SiliconValley	2 MICRON = 2E-6 meters thick Mylar is used in the Sound Lab ESLs. 4 MICRON =4E-6 meters thick Mylar is frequently used in DIY, as it is more robust and can withstand manual application techniques of a high resistive coating. 5-6 micron Mylar is another common ESL thickness. 1 mil = 25.4 microns

26th April 2005, 09:09 PM	#8
SY diyAudio Moderator Join Date: Oct 2002 Location: Chicagoland Blog Entries: 1	Dow sold the brand name for the film (not the resin) to another company, who immediately subbed a cheaper resin. Of course the excuse was to make it more "ecological." Sure, you bet. Saran resin is still PVDC and still Dow. __________________ If there's a sucker born every minute, where do the rest of them come from?

27th April 2005, 01:58 AM	#9
ERICSPEEd diyAudio Member Join Date: Dec 2003 Location: Head of the Lakes	so is it 0.4 mil or 4 mil? "4" used as example only what i have is about twice the thickness(may be more) of saran-wrap. would that be unusable? __________________ I thought a signature was an abstract form of cursive?

27th April 2005, 08:46 AM	#10
ABJensen diyAudio Member Join Date: Mar 2005 Location: copenhagen	I use paper (20my) is way better than any plastic type matirial. Andre´ Jensen

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