Re: [PSUBS-MAILIST] New photos

Vance

-----Original Message-----
From: Brian V. Ryder <brian@subatlantic.com>
To: personal_submersibles@psubs.org
Sent: Sat, May 1, 2010 8:07 pm
Subject: RE: [PSUBS-MAILIST] New photos

Vance Thanks for the info, I have 2 gallons of this do you think it would work I use this for O rings and valve gasket installs very similar to what I am reading Just a thought

DOW CORNING®4

Electrical insulating compound

FEATURES

Grease like material containing an inert silica filler in

combination with selected polydimethyl silicone fluids

APPLICATIONS

A moisture proof seal for aircraft, automotive and marine ignition systems and spark

plug connections, disconnection junctions in electrical wiring systems also in

electrical assemblies and terminals.

• Used as a seal and lubricant for cable connectors, battery terminals, rubber door seals,

switches and rubber and plastic O-rings and as a assembly lubricant for various metal-

on-plastic and metal-on-rubber combinations.

TYPICAL PROPERTIES

Specification Writers: These values are not intended for use in preparing specifications.

Please contact your local Dow Corning sales office or your Global Dow Corning

Connection before writing specifications on this product.

CTM*

Parameter

Unit

Value

0176

Color

White; translucent

0191

NLGI grade No. 2

Penetration unworked

mm/10

220

Penetration worked 60, max

mm/10

310

0033A

Bleed, 30hours/200˚C(392˚F), max

6.0

0033A

Evaporation, 30hours/200˚C(392˚F), max %

2.0

Service temperature range¹

˚C

-55 to +200

˚F

-67 to 392

Melting point

˚C(˚F)

None

0022

Relative density at 25˚C(77˚F)

g/ml

1.0

Electrical properties

0114

Dielectric strength, 1.27mm gap

kV/mil

1.0

0112

Permittivity at 100Hz

3.1

0112

Permittivity at 100kHz

3.1

0112

Dissipation factor at 100Hz

0.0025

0112

Dissipation factor at 100kHZ

0.0025

0249

Volume resistivity at 23˚C(73˚F)

Ohm.cm 0.10 x 1015

0171

Arc resistance

seconds

120

Parameter1. The maximum temperature limit may approach 260ºC(500ºF) with no oxygen

present.

* CTM: Corporate Test Method, copies of CTMs are available on request.

• High dielectric strength

• Low volatility

• Moisture resistant

• Good thermal oxidation and chemical

stability

• Meets MIL-S-8660C

• Retains its grease like consistency

from -55ºC(-67ºF) to +200ºC(392ºF)

• Odorless

• Highly water repellent

• Adheres readily to dry metals,

ceramics, rubber, plastics and

insulating resins

HOW TO USE

DOW CORNING 4 Compound can be

applied by hand, specially designed

automated equipment, brushing or

wiping. Certain designs of grease guns

may seize up with silicone compounds;

test prior to use.

A thinner consistency can be achieved

by dispersing in solvents such as

xylene, mineral spirits and methyl

ethyl ketone. DOW CORNING 4

Compound can then be applied by

brushing, dipping or spraying.

Product Information

Page 2

We help you invent the future is a trademark of Dow Corning Corporation.

10/08/2007

Dow Corning is a registered trademark of Dow Corning Corporation.

Ref. No. 10-1187F-01

DOW CORNING 4 Compound should

not be applied to any surface which will

be painted or finished. Such coatings

may not adhere to the silicone-treated

surface. If contaminated by a silicone

coating, parts can be wiped or washed

with solvent, washed with detergent, or

immersed in an alcoholic potassium

hydroxide solution and then rinsed in

clear water before painting.

Dispensing

Separation and compaction can occur

with some high pressure dispensing

equipment. This should be considered

when designing dispensing systems for

use with DOW CORNING 4

Compound.

For information on appropriate

dispensing equipment for your

application, please contact

Dow Corning.

Solubility

DOW CORNING 4 Compound is

insoluble in water, methanol, ethanol or

mineral oil and is soluble in mineral

spirit and methyl ethyl ketone. The

suitability of a particular solvent should

be based on testing prior to use.

Flammability and toxicological

properties should be important

considerations in the choice of solvent.

Dimethyl silicone compounds should

not be applied to O rings or other

components made of silicone rubber

because they will destroy the silicone

rubber.

These compounds will also slightly

swell natural butyl rubbers.

Chemical resistance

DOW CORNING 4 Compound is not

greatly affected by mineral oils,

vegetable oils or air. It is generally

resistant to dilute acids and alkalines,

and to most aqueous solutions. As each

application may vary in chemical

composition, pressure, flow velocity,

relubrication requirements and

equipment design, it is

recommended that DOW CORNING 4

Compound be tested before adopting for

regular use.

DOW CORNING 4 Compound is not

intended to be used with liquid oxygen

and should not be used in applications

requiring LOX compatibility without

thorough testing for the specific

application.

HANDLING PRECAUTIONS

When using solvents avoid heat, sparks

and open flame. Always provide

adequate ventilation. Obtain and follow

handling precautions from the solvent

supplier.

Product safety information required for

safe use is not included. Before handling,

read product and safety data sheets and

container labels for safe use, physical and

health hazard information. The material

safety data sheet is available on the

Dow Corning website at

www.dowcorning.com. You can also

obtain a copy from your local

Dow Corning sales representative or

Distributor or by calling your local

Dow Corning Global Connection.

USABLE LIFE AND

STORAGE

When stored in the original unopened

containers this product has a usable life

of 60 months from the date of production.

PACKAGING

This product is available in tubes, pails

and drums.

LIMITATIONS

This product is neither tested nor

represented as suitable for medical or

pharmaceutical uses.

HEALTH AND

ENVIRONMENTAL

INFORMATION

To support Customers in their product

safety needs, Dow Corning has an

extensive Product Stewardship

organization and a team of Product

Safety and Regulatory Compliance

(PS&RC) specialists available in each

area.

For further information, please see our

website, www.dowcorning.com or

consult your local Dow Corning

representative.

LIMITED WARRANTY

INFORMATION – PLEASE READ

CAREFULLY

The information contained herein is

offered in good faith and is believed to

be accurate. However, because

conditions and methods of use of our

products are beyond our control, this

information should not be used in

substitution for customer's tests to

ensure that Dow Corning's products are

safe, effective, and fully satisfactory for

the intended end use. Suggestions of use

shall not be taken as inducements to

infringe any patent.

Dow Corning's sole warranty is that the

product will meet the Dow Corning

sales specifications in effect at the time

of shipment.

Your exclusive remedy for breach of

such warranty is limited to refund of

purchase price or replacement of any

product shown to be other than as

warranted.

DOW CORNING SPECIFICALLY

DISCLAIMS ANY OTHER

EXPRESS OR IMPLIED

WARRANTY OF FITNESS FOR A

PARTICULAR PURPOSE OR

MERCHANTABILITY.

DOW CORNING DISCLAIMS

LIABILITY FOR ANY

INCIDENTAL OR

CONSEQUENTIAL DAMAGES.

WE HELP YOU INVENT THE

FUTURE.TM

www.dowcorning.com

Brian V. Ryder

CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information or otherwise be protected by law. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of vbra676539@aol.com
Sent: Saturday, May 01, 2010 7:14 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] New photos

vacuum grease

-----Original Message-----
From: Brian V. Ryder <brian@subatlantic.com>
To: personal_submersibles@psubs.org
Sent: Sat, May 1, 2010 6:17 pm
Subject: RE: [PSUBS-MAILIST] New photos

Can anybody tell me what kind of grease to use on the flange for the front window Handbook of Acrylics says to grease it but I can’t seem to find out with what

Brian V. Ryder

brian@subatlantic.com

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of Brian V. Ryder
Sent: Saturday, May 01, 2010 5:53 PM
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] New photos

The second choice was optimus prime

Brian V. Ryder

brian@subatlantic.com

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of vbra676539@aol.com
Sent: Saturday, May 01, 2010 5:19 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] New photos

That would be pronounced "Dish One" perhaps? OR DeepiSH One? Or.....? Come on guys. Chime in, here.

Vance

-----Original Message-----
From: Brian V. Ryder <brian@subatlantic.com>
To: personal_submersibles@psubs.org
Sent: Sat, May 1, 2010 4:10 pm
Subject: RE: [PSUBS-MAILIST] New photos

Hello all

For those interested I just uploaded some more pictures of the conning tower flange and rebuilt Hatch, things moving along nicely now, the new name will be “Deep Sea Hunter 1” or DSH-1 has a ring to it

Brian V. Ryder

brian@subatlantic.com

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of s
Sent: Saturday, May 01, 2010 10:14 AM
To: personal_submersibles@psubs.org
Subject: RE: [PSUBS-MAILIST] Hello Emile

I have visited this topic of compensating electric trolling motors such as the minnkota motor many times on psubs over the past few years. there is obviously a wealth of knowledge out there between you guys but for a newby like myself drilling willy nilly into a motors outer shell with little understanding of land marks and inner workings scares the hell out of me, let alone fill a motor with a liquid and expect it to continue work . i have been looking at the photos on the psub site taking great interest in the motors and their "plumbing" but im sorry to say , i need idiot proof assistance in his part of my construction. is there anyone of you guys that has taken step by step photos and made written instructions on how to pressure comp a motor? oil, air or other methods, what about loss of oil and reservoir systems. what works best...etc. i have 5 minnkota motors to do, all 30-45 HP

Many thanks in advance

shayne

-----Original Message-----
From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org]On Behalf Of Greg Cottrell
Sent: Friday, 30 April 2010 10:53 PM
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] Hello Emile

Hello Emile,

I’ve been using WD-40 in the thrusters too. WD-40 is basically made up of a combination of baby oil, Vaseline, and a variety of “alkanes” (like nonane, decane, undecane and tridecane). The great thing about alkanes is that they cannot be ionized and therefore cannot bind with hydrogen, making them water repellant. One thing I like about WD is that it doesn’t produce as big of an “oil slick” on the water if some ever escapes. Oils slicks following your sub are not good!!! I think that the gas produced is cause by arcing of the brushes in compounds with slightly higher vapor pressure. The only real downside to WD-40 is that the Vaseline component can degrade the rubber seals over time (like any petroleum based lube) but it takes awhile.

Cheers!

Greg Cottrell

Project Manager

greg@precisionplastics.com

http://www.precisionplastics.com

P please consider the environment before printing this email

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of vbra676539@aol.com
Sent: Thursday, April 29, 2010 4:12 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] compensating

Might be time to build a tank for testing. I like hydraulic oil better than silicone. It is actually slicker. We used it by the drum with the Pisces boats.

Vance

-----Original Message-----
From: Emile van Essen <emile@airesearch.nl>
To: personal_submersibles@psubs.org
Sent: Thu, Apr 29, 2010 3:01 pm
Subject: [PSUBS-MAILIST] compensating

Hi, The compensation subject again…

We compensate the Eurosub engines with WD40. Work fine at depth but somehow the engines create gas so we have to pressure relief the compensation bottles every few dive hours. I try to get thin silicone oil to see if that works better.

For the time being I wonder how deep Minn kota’s etc. can operate NOT compensated (no oil and plugged).

Any thoughts/ expirience ??

Regards, Emile van Essen