FYI, Referred to in the autotrade as 'Stonechip' or 'Underbody Schutz' still available in spray cans. 73 Max M0GHQ ----- Original Message ----- From: K9sqg To: [email protected] ; [email protected] Cc: [email protected] Sent: Wednesday, April 17, 2013 8:39 PM Subject: Re: [Drakelist] MS-4 Speaker
If one wants to lower the resonant frequency of a metal speaker enclosure, there used to be a product out that was available in a spray can, and it would form a thick, tar-like surface. It was sold in auto supply houses for coating wheel wells and car frames. 73, Evan, K9SQG
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