A retail pack of 1 soft silicone anti-vibration fan gasket with 4 silicone washers and mounting screws. These silicone gaskets are designed to reduce the vibration from PC and server case cooling fans.
The following models are available:

Silicone fan gaskets are truly the ultimate in fan noise reduction, because they perform two important tasks:
Other advantages include:
These gaskets are suitable for the vast majority of case designs and fan combinations, as they fit standard fan mounting holes. Slightly lengthened (12mm thread) fan mounting screws are supplied with the fan gaskets and washers. These gaskets can be used with standard PC cooling fans, and not just with AcoustiFan™ quiet case fans. Note: Do not use these gaskets in very high temperature locations inside a PC/Server such as attached to CPU or GPU heat sinks!
The hardness testing of plastics and rubbers is most commonly measured by the Shore (Durometer) test or Rockwell hardness test. Both methods measure the resistance of plastics toward indentation and provide an empirical hardness value.
Shore Hardness (using either the Shore A or Shore D scale), is the preferred method for rubbers/elastomers. The Shore A scale is used for 'softer' materials like silicone rubbers, while the Shore D scale is used for 'harder' materials.
The Shore hardness is measured with an apparatus known as a Durometer and consequently is also known as 'Durometer hardness'. The hardness value is determined by the penetration of the Durometer indenter foot into the sample. A 'softer' material will have a lower Shore value than a 'harder' material.
Fitting Directions
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Why are these silicone fan gaskets especially effective? Because we have not held back on the silicone thickness and the silicone material softness. All gaskets are 2.5mm thick (not just 1mm like alternatives), and Shore A 25 (a great deal softer than others we have tested). We are confident that these two factors make these gaskets more effective than any other models available.
![]() Fitted to the AC C6606 Front |
![]() Corner of Gasket Showing Molding |
![]() 80mm Gasket with Screws and Washers |
Product Reviews
"QuietPC has designed a fan that will make even the most finicky person happy to own one. I found the fans and the silicone gaskets work together very well to create an almost totally silent fan. I would recommend these fans and gaskets to someone looking to silence their PC a little more." - Extensive Mods Review
*** If you are a reseller or a system builder we have OEM Acousti Fan Gaskets available in packs of 32! Contact us for more information. ***
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