The newest clip available at our online store is the GenieClip by Pliteq. Pliteq is an engineering firm from Canada that designs products specifically for the sound isolation market. They analyzed the basic concept of decoupling with resilient sound clips and came up with a design that achieves the highest level of performance possible. Their product, GenieClip, is very popular within Canada and in the spring of 2010 the GenieClip became available online to our US customers at isostore.com.

The basic design of the clip is familiar with the black neoprene bumper and one screw installation. The performance increase, which is mainly found in the low frequency ranges, is largely attributed to the quality of the neoprene rubber attached to the clip. The Durometer (hardness) of the rubber is 20 points lower than the other resilient clips that incorporate rubber on their clip. That is a very noticeable difference and just part of the equation that helps the GenieClip perform at maximum efficiency. Here is an excerpt from the manufacturer’s site discussing the quality of rubber on the GenieClip:

Importance of Rubber Properties in Performance of the Resilient Clip Technology

Rubber is a superior vibration isolator. In almost every significant application, rubber is chosen to isolate vibrations because of its compression ratio, dynamic and static properties. The dynamic properties of the rubber element of a vibration isolator are affected by its compression ratio, and thus the dynamic characteristics of a vibration isolator depend on the static load.

Stiffness

The stiffness measures the “spring rate” of the rubber. Higher spring rate means a stiffer material and lower overall performance.

Static Stiffness

Under a static or constant load, the stiffness is measured.

Dynamic Stiffness

Tested under a variable load due to the effect of vibration. It is a forced frequency test for resonance at specific frequencies. Natural rubber has the lowest dynamic stiffness of common material.

Result

KINETICS: 21.6 N/MM
PAC: 21.2 N/MM
PLITEQ: 11.3 N/MM

Dynamic / Static Stiffness Ratio

The ratio is a measure of the resiliency of the material. For example, for completely resilient material, the ratio is
1. In order to achieve isolation at lower frequencies, it is important that this ratio be as low as possible. Therefore, ratio closer to 1 means better vibration isolation performance. Most acoustical engineers will specify isolators that have a maximum dynamic to static ratio of 1.4.

Result

KINETICS: 1.29
PAC: 1.34
PLITEQ: 1.19

Force / Deflection Curve

If the isolator is more resilient, typically the acoustical performance will be better. A measure of force versus deflection gives a direct link to resilience at a static loading.

Result

KINTETICS: 19.79 N/MM
PAC: 23.88 N/MM
PLITEQ: 8.95 N/MM

Durometer of Rubber

Durometer is a term for hardness as indicated by the Shore A durometer number. The normal range for isolation materials is 40 to 60+ / -5 as limited by dynamic stiffness. Steel springs for example have a ratio of 1. Dynamic stiffness increases with hardness and in broad terms, the filler ratio of the materials to the rubber content as well as the carbon black reinforcement, plasticizers etc.

Results

KINETICS: 56
PAC: 57
PLITEQ: 37

Conclusion

Based on these results, the rubber stiffness of the Pliteq GenieClip is about 2 times better than the other two materials. Since the dynamic stiffness and dynamic to static ratio control the performance of the clip, especially at low frequencies, it is clear that the performance of the GenieClip will be superior to the other two products.

The above report can be found by opening up this .PDF file: Importance Of Rubber Properties

What The Above Report Means For Your Project

The increase in performance from the GenieClip is most noticeable in the lower frequencies. The GenieClip provides a 2-3 point increase in the lowest of frequencies compared to the most popular resilient clips. The STC rating of the GenieClip is as high as 64 with an OITC rating as high as 49. The GenieClip’s ability to isolate both high and low frequencies make this clip a great option for any project. The quick one screw installation and low profile design will help you get the job done quick without sacrificing too much headroom.

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