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[TowerTalk] KT34XA cracked insulators

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Subject: [TowerTalk] KT34XA cracked insulators
From: (Roger A. Cox WB0DGF)
Date: Tue, 6 May 1997 09:26:38 -0400
Polycarbonate resins, such as GE LEXAN and others, are extremely
susceptable to solvents such as WD-40.  The GE book lists these chemicals
to avoid:

Amines, Aromatic Hydrocarbons, strong alkaline detergents, Esters,
Halogenated Hydrocarbons, Ketones.

Also avoid the following combination:  High stress, Hot water, High
temperature (140-160 deg F).

It is really amazing to see the effects of these chemicals on a sample
part.  Extreme crazing and cracking in a matter of seconds!

Roger WB0DGF

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