[TowerTalk] penatrox
wa9vrh
wa9vrh@ocslink.com
Fri, 14 Jan 2000 20:43:22 -0600
HI I just did a search on penatrox. Lots of places to look for it
or it's substitute. 73's Larry WA9VRH
Alumininum and Hawaii's Caustic Air
In Hawaii corrosion, especially on aluminum, is a constant war.
The air is full of salt and the humidity is high. Corrosion is
terrible. Various solutions have been tried such as hosing down a
new beam with WD40 before putting it up. Particularly troublesome
are sliding, nesting aluminum tubes on beams and verticals.
In my experience, the more noxious and offensive a substance is
to work with, the better it protects. An example is Aqua Lube, a
substance that comes in a can like a paint can, has a consistency
of melted green chewing gum, and seems to crawl up your arms like
some living goop out of a Science Fiction movie. It is extremely
effective even in areas where it is subjected to salt spray.
Here is a document from the ARRL on various so called "conductive
greases." Actually they do not conduct at all. They are corrosion
fighters designed to keep a decent aluminum connection protected
from corrosion and degradation. Many contain "sacrificial metals"
in addition to grease. But sticking an ohmmeter in these things
generally will not produce a reading, other than open circuit.
Their value is in keeping what started out as a good connection,
alive and well as it is exposed to the harsh Hawaiian elements.
By Michael Tracy KC1SX (mtracy@arrl.org)
Here is a list of products and suppliers we keep on hand at ARRL
HQ. These are all for protecting connections, but a good
mechanical contact is still necessary. There is a grease
available (I think it's called Conducto-Lube) that you can stick
an ohmmeter in and get a low reading, but it is quite expensive
(it contains silver).
The following is a list of paste and grease-like products for the
prevention of oxidation of aluminum in electrical connections and
antenna installations: (Prices could be out of date)
Manufacturer:
Butternut Electronics Company
831 North Central Avenue
Wood Dale, IL 60191
Tel: (708) 238-1854
Fax: (708) 238-1186
Product Name: Butter-It's-Not
Source: Direct if not stocked by local authorized dealer.
Price: $3.50/ Envelope
NOTES: Contains copper dust in a molybdemum suspension.
LOCAL NOTE: This one gets really good press from those who have
used it.
Manufacturer:
GB Electrical
6101 N. Baker Road
Milwaukee, WI 53209
Tel: 1-800-558-4311
Product Name: OX-GARD
Source: Available from many electrical supply houses and retail
outlets such as Sears, Home Depot, Ace and True Value
Hardware stores. No Factory direct sales.
GB catalog number OX-100B.
Price: Approximately 3.00/ 1-oz tube
Manufacturer:
Ideal Industries, Inc.
Becker Place
Sycamore, IL 60178
Tel: 1-800-435-0705
and: 1-815-895-5181
Fax: 1-800-533-4483
Product Name: NOALOX
Source: Distributors (Call 800 number for nearest one)
Price: Ideal list price $2.58/ half oz tube (#30-024) and
$8.64/8oz bottle (#30-030).
NOTES: Also available from many electrical wholesale supply
houses.
No factory direct sales. Contains zinc particles
suspended
in a carrier.
Manufacturer:
KLM Antennas Inc.
PO Box 694
Monroe, WA 98272
Tel: 1-360-794-2923
Fax: 1-360-794-0294
Product Name: Conductive Paste
Source: Factory direct and larger dealers.
Price: $3.50 plus shipping & handling/ 1 ounce containers
NOTES: Anti-seize thread compound Hi-Temperature MIL-A-907E.
Contains copper and graphite flakes suspended in a petroleum
base. Manufactured for Mirage/KLM by Chemical Commodities
Agency, Inc. of Highland, CA per MIL-A-907E.
Manufacturer:
Sanchem, Inc.
1600 S. Canal Street
Chicago, IL 60616
Tel: 1-800-621-1603
Out of State: 1-312-733-6111
Fax: 1-312-733-7432
Product Name: NO-OX-ID
Source: Direct from Manufacturer
Price: $11/16oz can or $8.80/8oz tube (plus shipping)
Minimum order - $35
NOTES: NO-OX-ID comes in several consistencies. NO-OX-ID "A" and
NO-OX-ID "A-Special" are suitable for most antenna
installations.
NO-OX-ID "A-Special" is similar to NO-OX-ID "A" but has a small
amount of solvent added for ease of application.
Manufacturer:
Thomas & Betts Company
1555 Lynnfield Road
Memphis, TN 38119
Tel: 1-800-888-0211
Fax: 1-800-888-0790
Product Name: Aluma-Shield
Source: No direct factory sales. Available from many electrical
supply distributors.
Price: Approximately $11.44/ 8oz can.
NOTES: Customer may call 800 number for location of nearest
distributor.
Contains zinc particles suspended in a petroleum base.
Manufacturer:
Burndy Electrical
101 E. Industrial Park Dr.
Manchester, NH, 03108
Tel: 1-800-346-4175
Fax: 1-800-346-9826
Product Name: Penetrox (PEN-A)
Source: Electrical wholesalers
Price: Approx. $6/ 3oz tube
NOTES: Zinc particles suspended in a natural based compound.
LOCAL NOTE: Loaded with metal, needs a lot of stiring before use
with
a stick etc., seems to work well on sliding,
telescoping
aluminum elements.
Manufacturer:
Ilsco Corporation
4730 Madison Road
Cincinnati, Ohio 45227
Tel: 1-513-533-6200
Fax: 1-513-533-6274
Product Name: DE-OX
Source: No factory direct sales. Available from electrical
supply
wholesalers and distributors. Customer may call for
nearest distributor.
Price: Approximately $2.90/ 1oz, $4.90/ 4oz and
$7.30/ 8oz squeeze bottle.
NOTES: Used in the electrical trade for Al/Cu and Al/Al
connections.
Green colored grease with no noticeable particles in suspension.
Manufacturer:
Antennas West
PO Box 50062
Provo, Utah 84605
Tel: 1-801-373-8425
Fax: 1-801-373-8426
Product Name: Goose Grease
Source: Factory direct sales only.
Price: $1.00/ 1oz + and $1.00 p&h.
NOTES: Transparent silicone grease. Antennas West also
recommends
this product for ground rod clamp connections.
Manufacturer:
Mosley Electronics, Inc.
10812 Ambassador Blvd.
St. Louis, MO 63132
Tel: 1-800-966-7539
and: 1-800-325-4016
and: 1-314-994-7872
Fax: 1-314-994-7873
Product Name: 1) Mosley Penatrox (Conductive Grease)
2) Weather Guard (Clear spray coating)
Source: Factory direct sales only.
Price: Mosley Penatrox- $4.45 / packet + postage.
Weather Guard- $12.75/ 8oz spray can + shipping
NOTES: Mosley Penatrox is a greaselike product. Weather Guard
is a
clear spray especially recommended for marine and coastal
environments. Weather Guard cannot be shipped via the
post
office; UPS required.
Manufacturer:
Loctite Corporation
1001 Troutbrook Crossing
Rocky Hill, CT 06067-3910
Tele: 800-842-0041
Product Name: Permatex ANTI-SEIZE LUBRICANT
Source: Many Automotive Supply Distributors
Price: N/A
NOTES: Comes in 1 oz squeeze tube, 8 fluid oz brush top
container,
and a 12 oz aerosol can. Can be used on the threads of
U-bolts to prevent "seizing, galling, and corrosion."
It aids in the disassembly of the the antenna's hardware.
Not for use on electrical connections. The part no. on
a 1 oz tube is 133A.
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