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Fuel tank sealant available

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JFLEISC(at)aol.com
Guest

Posted: Sat Jun 28, 2008 7:11 am Post subject: Fuel tank sealant available

All, I finished sealing my fuel tanks and since there is a 2 week waiting  time after ordering the sealant I made sure I bought much more than I needed so  as not to run out during the job. It went much smoother than anticipated and I  have some left over. I have 2 unopened factory sealed pints (one RV-4 tank took  me one pint) of PPG P/S 890 B-2 available with a manufacturing date of 6/08. It  states a 9 month shelf life. This is the "paste type" and I applied it with a  stiff brush. It has an application time of 2 hours (I mixed small batches).  After much research including what I learned from this group I found this to be  one of the few 'ProSeal' products to specifically list in it's tech sheet that  it has the same resistance to alcohol as fuel (I like the option to run Mogas)  (see the link below for the PPG tech sheet). I understand that many of the newly  formulated sealants are alcohol resistant also however those that I read the  tech sheets of made no specific mention of alcohol. It cost me $55 a pint and I  will sell to whoever may be interested for $55 for the 2 pints plus shipping. If  interested email me at jfleisc(at)aol.com (jfleisc(at)aol.com).

  

 Jim

  

 http://buyat.ppg.com/REP_aerospace_files/Sealants/890b.pdf



Gas prices getting you down? Search AOL Autos for fuel-efficient used cars.

  [quote][b]

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ceengland(at)bellsouth.ne
Guest

Posted: Sat Jun 28, 2008 9:36 am Post subject: Fuel tank sealant available

JFLEISC(at)aol.com wrote:

 	  Quote: 	
		   All, I finished sealing my fuel tanks and since there is a 2 week 

 waiting time after ordering the sealant I made sure I bought much more 

 than I needed so as not to run out during the job. It went much 

 smoother than anticipated and I have some left over. I have 2 unopened 

 factory sealed pints (one RV-4 tank took me one pint) of PPG P/S 890 

 B-2 available with a manufacturing date of 6/08. It states a 9 month 

 shelf life. This is the "paste type" and I applied it with a stiff 

 brush. It has an application time of 2 hours (I mixed small batches). 

 After much research including what I learned from this group I found 

 this to be one of the few 'ProSeal' products to specifically list in 

 it's tech sheet that it has the same resistance to alcohol as fuel (I 

 like the option to run Mogas) (see the link below for the PPG tech 

 sheet). I understand that many of the newly formulated sealants are 

 alcohol resistant also however those that I read the tech sheets of 

 made no specific mention of alcohol. It cost me $55 a pint and I will 

 sell to whoever may be interested for $55 for the 2 pints plus 

 shipping. If interested email me at jfleisc(at)aol.com 

 <mailto:jfleisc(at)aol.com>.

  

 Jim

  

 http://buyat.ppg.com/REP_aerospace_files/Sealants/890b.pdf


	


Actually, the link you sent says:



Charlie

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Doug Gray

Joined: 10 Jan 2006
Posts: 112
Location: Sydney, Australia

Posted: Sat Jun 28, 2008 2:53 pm Post subject: Fuel tank sealant available

On Sat, 2008-06-28 at 11:07 -0400, JFLEISC(at)aol.com wrote:

 	  Quote: 	
		   I understand that many of the newly formulated sealants are alcohol

 resistant also however those that I read the tech sheets of made no

 specific mention of alcohol.


	


This 'manganese dioxide cured polysulfide compound'  is good ol'

Proseal.



I believe DeSoto and it's previous incarnation (whose name escapes me

for the moment) was the original manufacturer of the product. Like me

the folk in these companies have never changed jobs but have worked for

a string of different corporations.



Doug Gray

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JFLEISC(at)AOL.COM
Guest

Posted: Sat Jun 28, 2008 4:45 pm Post subject: Fuel tank sealant available

In a message dated 6/28/2008 6:55:12 P.M. Eastern Daylight Time,  dgra1233(at)bigpond.net.au writes:

  	  Quote: 	
		  This    'manganese dioxide cured polysulfide compound'  is good    ol'

Proseal.



I believe DeSoto and it's previous incarnation (whose    name escapes me

for the moment) was the original manufacturer of the    product. 	


 

 "The product"? I went to their site and under 'sealants' there are quite a  few "products", all going by the name "ProSeal' (or P/S) with different suffix  numbers depending on the characteristics. Its not the same number "proseal"  that, for instance, Aircraft Spruce sells. Which one is the 'good ol'  stuff?



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Doug Gray

Joined: 10 Jan 2006
Posts: 112
Location: Sydney, Australia

Posted: Sat Jun 28, 2008 11:06 pm Post subject: Fuel tank sealant available

On Sat, 2008-06-28 at 20:40 -0400, JFLEISC(at)aol.com wrote:

 	  Quote: 	
		   Which one is the 'good ol' stuff? 


	


MIL-S-8802 Was the original specification. Manufacturers complied with

the spec or did not get the gig. My original quart cans from Vans were

marked with the Mil-STD reference. 



This standard covers a number of variations, I would be surprised if the

PRC product line had variations beyond these.



I believe manufacture is limited to a small number of plants if not one

only with the real industry being repackaging the product. Hence we see

it appearing under a host of labels and package types at corresponding

markups.



Yes you are correct - it might well have been tweaked along the way

especially after the mil-stds were transferred to industry. 



Doug

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JFLEISC(at)aol.com
Guest

Posted: Sun Jun 29, 2008 6:09 am Post subject: Fuel tank sealant available

In a message dated 6/29/2008 3:08:19 A.M. Eastern Daylight Time,  dgra1233(at)bigpond.net.au writes:

  	  Quote: 	
		  Yes you    are correct - it might well have been tweaked along the way

especially    after the mil-stds were transferred to industry. 	


 

 Therein lies the issue; In my research I came across a lot of "mights,  maybes, or rumors". I am also reasonably sure that they, as you say, are  all if not pretty close to the same, but to be sure I went with the data sheets  and very few referenced alcohol. At least with the ones that do, I have it in  writing as being tested for it.

  

 Jim



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Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Sun Jun 29, 2008 6:32 am Post subject: Fuel tank sealant available

I don't know the full history of the sealant, but from a couple updates to the Mooney manuals I can ascertain that in 1966 they were spec-ing PR1221-B-4, mil spec 7502C, while by 1981 the spec changed to PR1422-B2, mil spec 8802, which remains their standard today.

 

 Doug Gray wrote: [quote]    	  Quote: 	
		  --> RV-List message posted by: Doug Gray <dgra1233(at)bigpond.net.au> (dgra1233(at)bigpond.net.au)



On Sat, 2008-06-28 at 20:40 -0400, JFLEISC(at)aol.com (JFLEISC(at)aol.com) wrote:

        	  Quote: 	
		  Which one is the 'good ol' stuff? 

    	
   

MIL-S-8802 Was the original specification. Manufacturers complied with

the spec or did not get the gig. My original quart cans from Vans were

marked with the Mil-STD reference. 



This standard covers a number of variations, I would be surprised if the

PRC product line had variations beyond these.



I believe manufacture is limited to a small number of plants if not one

only with the real industry being repackaging the product. Hence we see

it appearing under a host of labels and package types at corresponding

markups.



Yes you are correct - it might well have been tweaked along the way

especially after the mil-stds were transferred to industry. 



Doug



  	
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Kelly McMullen
A&P/IA, EAA Tech Counselor # 5286
KCHD

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