Modifying a Green Glue Whisper Clip - AVS Forum
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post #1 of 18 Old 01-14-2013, 10:43 PM - Thread Starter
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I was wondering if any one has any thoughts on modifying a Whisper Clip or maybe I should say modifying a portion of a Whisper Clip. I started a thread about this type of clip a year ago and got some good info. But now I am planning to alter them and will likely start to install them in the next week.

The Whisper Clips that I have are these.

CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 90

The reason why I have these is they are much cheaper than the standard clip plus they were readily available. I should also mention I have only seen the clips available in Canada as that is where I am and in Australia. As I have been experimenting with modification this is what I have come up with.






I attached the clip to a metal plate and on the back of the plate I have a piece of closed cell foam. You can see that the screws that go into the studs have a rubber grommet attached to the plate to keep direct contact with the screws to a minimum. I also have some rubber bushing between the Whisper Clip and the plate. I am hoping that in the end it will be similar to the standard or should I say full Whisper Clip set up.

These clips will be holding up 5/8" DD and GG.

Anybody have any thoughts? Am I a bit crazy to go to this lengths to modify the clip?

Thanks
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post #2 of 18 Old 01-15-2013, 06:03 AM
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How would those clips normally be installed? I'm guessing with a screw, up through the center hole into a joist or stud. Why wouldn't you just add the grommets to the center hole and be done with it? What's the point of the additional plate?

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post #3 of 18 Old 01-15-2013, 07:00 AM
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What are you trying to achieve? If you want isolation, use the clip as-is and instead add a second sheet of drywall. It doesn't take much to decouple, and after that, the mass is the biggest driver
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post #4 of 18 Old 01-15-2013, 08:24 AM
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How much did the grommets, closed cell foam and plate cost? After all that are you really saving that much money? install what you got and be done with it. wink.gif
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post #5 of 18 Old 01-15-2013, 08:33 AM
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And again, what do you hope to achieve with all of this? And again, you will have a MUCH bigger performance increase by adding 2X the drywall.

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post #6 of 18 Old 01-15-2013, 10:15 AM - Thread Starter
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Quote:
Originally Posted by tlogan6797 View Post

How would those clips normally be installed? I'm guessing with a screw, up through the center hole into a joist or stud. Why wouldn't you just add the grommets to the center hole and be done with it? What's the point of the additional plate?

This is one of the ideas that I was thinking about.
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post #7 of 18 Old 01-15-2013, 10:17 AM - Thread Starter
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Quote:
Originally Posted by Ted White View Post

And again, what do you hope to achieve with all of this? And again, you will have a MUCH bigger performance increase by adding 2X the drywall.

I guess I was hoping to emulate the original Green Glue sound clip.

I will be adding 2 sheets of 5/8 drywall with GG. I am also currently installing drywall on the underside of the floor board between the joists with GG.
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post #8 of 18 Old 01-15-2013, 10:29 AM - Thread Starter
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Quote:
Originally Posted by Tom Bley View Post

How much did the grommets, closed cell foam and plate cost? After all that are you really saving that much money? install what you got and be done with it. wink.gif

The grommets are actually very cheap. They are grommets/nipples for tattoo machine needles that I found off of Ebay and were about $2 for 100 shipping included. I was going to use another closed cell foam material that I can buy from Costco which costs about $0.50 a square foot and I was thinking of using a different plate which cost about $0.12 each.

Overall it is a cheap modification but it will be time consuming to modify all of them so I am wondering if it is worth the trouble.
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post #9 of 18 Old 01-15-2013, 10:29 AM
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I would abandon that strategy and use the clip as-is and move on. This is an exercise in futility, and there are much cooler areas to put your creative energies.
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post #10 of 18 Old 01-15-2013, 11:17 AM
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Ted, do you guys sell this "base" model clip? Is there any negative impact from using it?

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post #11 of 18 Old 01-15-2013, 11:20 AM
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Yes we do. No there isn't, assuming at least double drywall that has been damped.

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post #12 of 18 Old 01-15-2013, 11:59 AM - Thread Starter
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Quote:
Originally Posted by Ted White View Post

I would abandon that strategy and use the clip as-is and move on. This is an exercise in futility, and there are much cooler areas to put your creative energies.

Thanks. I think I will leave the clips as is, with the exception of the grommets since I already have them. I figure they cant hurt and if I don't use them they will end up sitting on a shelf until my wife throws them out.
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post #13 of 18 Old 01-15-2013, 12:04 PM
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Just remember- don't use drywall screws to attach the clips to the framing...
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post #14 of 18 Old 01-15-2013, 01:05 PM
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I would question using those grommets. Take a step back and look at the size of the rubber bushings on those product which have them as compared to yours. The contact patch is so small I'd be concerned about movement and weight having an adverse impact on the integrity of the installation.
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post #15 of 18 Old 01-15-2013, 01:08 PM - Thread Starter
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I didn't think you should use drywall screws but I am glad you confirmed that. From what I understand drywall screws aren't that strong. Which is fine when you 15-20 screws holding in a sheet of drywall but probably not so fine when when 6 screws are holding 6 sound clips which in turn are holding 2 pieces of 5/8 drywall.
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post #16 of 18 Old 01-15-2013, 01:10 PM - Thread Starter
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Quote:
Originally Posted by Dennis Erskine View Post

I would question using those grommets. Take a step back and look at the size of the rubber bushings on those product which have them as compared to yours. The contact patch is so small I'd be concerned about movement and weight having an adverse impact on the integrity of the installation.

That thought has been crossing my mind, so I guess I am not being a bit paranoid thinking about this. I'll re-evaluate what I am going to do.
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post #17 of 18 Old 01-15-2013, 01:15 PM
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http://www.spax.us/en/multi-material-construction-screws/unidrive-flat-head.html. Ted is a fan of these and suggested them to me. I am now also a big fan. (Available at HD but not my local Lowe's.)

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post #18 of 18 Old 01-15-2013, 01:18 PM
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I like the Spax screws as well. I've also had good luck with deck screws.

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