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RE: [PSUBS-MAILIST] need goo



Sikaflex! J

 

On a side note… I do a fair bit of outboard motor work… old 1970’s model mercury inline 6 cylinder motors… Anyways the boatshed who has been assisting me swears by lanolin based products for boat use… especially around o-rings etc… Also “master gasket” sealant for smaller o-rings on water pumps etc…

 

I guess because lanolin is a natural product its not going to cause o-rings to deteriorate like any petrochemical based grease’s etc…

 

I haven’t seen the pictures of your sub brian.. well not close up enough to know whats going on where that o-ring is… but I assume it’s a flange with a groove in it and bolts to clamp the two halves together? J something along those lines anyways..

 

 

http://www.parker.com/portal/site/PARKER/menuitem.75b3c0354ff8851afa93ebde76108a0c/?vgnextoid=b126981ef31a0110VgnVCM10000048021dacRCRD

 

http://www.parker.com/portal/site/PARKER/menuitem.7100150cebe5bbc2d6806710237ad1ca/?vgnextoid=f5c9b5bbec622110VgnVCM10000032a71dacRCRD&vgnextfmt=default&vgnextdiv=687519&vgnextcatid=4640225&vgnextcat=ADHESIVES

Parker O-Ring Adhesive and Sealant Line:

 

  • IA Series (Cyanoacrylate Instant Adhesives)
    • Free of solvents, reacts with air humidity and temperature polymerizing in few seconds
    • General purpose for quick strong bonding variety of substrates: metal, rubber, plastics, wood...
    • Can be used to reduce complexity in assembling operations, replacing the use of screws, machined encasing and welds

 

  • TL Series (Anaerobic Threadlocker Adhesive)
    • A liquid component that quickly cures in the absence of oxygen
    • Applied in a threaded fasteners to prevent prevent disassembly
    • Aides in locking or sealing on threaded parts, fills gaps 100% between parts provides high resistance to pressure and vibration

 

  • RC Series (Anaerobic Retainer Adhesives)
    • A liquid component applied between the gap of two smooth surfaces that are sliding interference fit assemblies such as a bearing
    • Quickly cures in the absence of oxygen
    • Retaining compounds fills gaps and replace need for precision machining, thermal or high force  assembly
    • Typical application: bushings, bearings, oil seals, pulleys

 

  • G Series (Anaerobic Gasketing Compounds)
    • A high viscosity liquid or paste  flange or threaded tube  application, working like a liquid gasket eliminating sealing elements such as o-rings, etc.
    • Gaskets compounds avoid the necessity of glands, reducing machining time replacing conventional seals
    • Acrylic type that cures in the absence of oxygen

 

  • ST Series (Surface Treatment Activators)
    • Activator used with anaerobic and cyanoacrylate adhesives to increase speed and improve state of cure on medium to inactive surfaces
    • These are products that when applied to metal surfaces change some of its chemical characteristics
    • Activator reacts to surface and reduces or eliminates the metalsinterference for the adhesive to cure

 

 

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of vbra676539@aol.com
Sent: Tuesday, 14 September 2010 2:33 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] need goo

 

It sounds good but someone better ask Parker what their preference is for o-rings in marine applications. They may have something that will work just as well and then you wouldn't have to chase all those sheep!

 

That said, there are marine stick-'ems that don't set up. RTV isn't one of them. Surely there is something that will bond correctly and still let you pry it apart down the road.

 

Vance

 

-----Original Message-----
From: Stewart Gardiner <stew@terminalsolutions.biz>
To: personal_submersibles@psubs.org
Sent: Tue, Sep 14, 2010 12:26 am
Subject: RE: [PSUBS-MAILIST] need goo

Quoted from Wikipedia...
 
Lanolin is used commercially in many industrial products ranging from
rust-proof coatings to lubricants. Some sailors use lanolin to create a
slippery surface on their propellers and stern gear to which barnacles
cannot adhere. The water-repellent properties make it valuable as a
lubricant grease where corrosion would otherwise be a problem.
 
Lanolin (German, from Latin lāna, "wool", and oleum, "oil") also called
Adeps Lanae, wool wax or wool grease, is a yellow waxy substance secreted by
the sebaceous glands of wool-bearing animals. Most lanolin used by humans
comes from domestic sheep. Lanolin is also frequently, but incorrectly,
referred to as ‘Wool Fat’ by many of the world’s pharmacopoeia even though
it has been known for more than 150 years that lanolin is devoid of
glycerides and is in fact a wax, not a fat.[1][2] Lanolin's waterproofing
property aids sheep in shedding water  from their coats. Certain breeds of
sheep produce large amounts of lanolin, and the extraction can be performed
by squeezing the sheep's harvested wool between rollers. Most or all of the
lanolin is removed from wool when it is processed into textiles, such as
yarn or felt.
 
Lanolin’s role in nature is to protect wool and skin against the ravages of
climate and the environment – it also seems to play a role in integumental
hygiene] It is therefore not surprising that lanolin and its many
derivatives are used extensively in products designed for the protection,
treatment and beautification of human skin.
 
 
 
 
-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Stewart Gardiner
Sent: Tuesday, 14 September 2010 2:05 PM
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] need goo
 
Lanoline is used a lot for marine grease/lube... not sure if it will be goey
enough for you... but it has the consistency of paste or cream almost... 
 
-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brian Cox
Sent: Tuesday, 14 September 2010 12:49 PM
To: Personal_Submersibles@Psubs. Org
Subject: [PSUBS-MAILIST] need goo
 
Starting to get moving again on my sub, I've been applying epoxy and making
progress.  I'm thinking about putting my two halves together, I'm going to
lay down a strip of silicone on one half 4" wide 1/4" thick and approx 40'
total linear feet. I'm thinking I should have some sort of goo, like
Vaseline, to get a good seal where the top meets the bottom silicone.  I
guess I could probably just use some sort of grease but was just wondering
if there is a preferred marine "Vaseline" .  Something with a reasonable
price.  Is ther such a thing?
 
Brian
 
 
 
 
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