Anyone tried " Flex Seal " for Horn DAMPING ???

[LowOhms]

Saw this " Flex Seal " on TV today.


Products Archive - Official Site - Flex Seal(R) Family Of Products



WHO has tried it ?? What did / do you think ?


I am looking to damp the back-side ( internal ) of my two 825s' four WOOFER flares.

I'm told ... old fashioned road tar and felt , applied HOT, is " state of the art ", but wish to avoid the hassle.

This has been around for at least five years, just "new" to me ...today.

Thanks in advance.


Low Ohms......Jeff Medwin

[GM]

No, just the tape several years ago to stop a small water leak and it didn't work as advertised.

Anyway, it takes a fair amount of mass loading to damp them, though not as much as the cabs proper. FWIW, I filled them with kitty litter and it seemed to be as good as the much heavier sand recommendation done by the then local distributor's inhouse pair of 'pallet' kits.

If you choose to use it anyway, recommend loading it with sterile sand or if it's thick enough, small gravel, otherwise just stiffen them a bunch using MDF, old ceramic tile or similar heavy scrap stuck on using PL400; just glob on ~ball like blotches and slap it on, rotating it back n' forth a bit to seat it, i.e. don't squeeze it out of the joint, just let it 'float' to make a constrained layer damping' node [CLD].

This became my default way to deal with damping limp stuff after trying it on the backside of a cheap one piece bathtub/shower insert back in '82?. It still feels as rigid, solid today as the old cast iron tub the day after I did it and still with no stress cracks.

GM

[LOUDER]

Big gap sealer. Home depot Spray foam. Practice first. Also saw this weekend foam to hold damaged fence posts in place. Check it out and reply.

[Elitopus1]

I had to check out the link you provided. I was thinking it was more like "duct seal". The blocks you can get from HD. I have used that for horn deadening. It works well and is cheap.

The stuff you linked would probably work well also.

[SD-50]

I had to check out the link you provided. I was thinking it was more like "duct seal". The blocks you can get from HD. I have used that for horn deadening. It works well and is cheap.

The stuff you linked would probably work well also.

Bought 10 blocks of duct seal to apply to my 2nd set of 511s, have not got around to it yet, but in the meantime set them down on the forward edge of the A7 cabs to discover the blocks are very effective at reducing cab vibrations and clearing up the sound. Effective upgrade for only a few bucks.

[GM]

For metal horns, the foil back rubber tapes work well, creating a constrained layer damping [CLD].

GM