KIP Fibreglass Isolators


Model KIP fibreglass noise, shock, and vibration isolators are superior to all pad-type isolation media developed to date. Uniquely permanent and dynamically predictable, due to precise manufacturing methods using inorganic materials, this isolation media provides freedom of design and use unprecedented by any other material.
Model KIP isolators are a high-density matrix of compressed molded fibreglass; individually coated with a flexible, moisture-impervious elastomeric membrane, and designed to allow controlled air movement in the fibre media. The pumping action of air between fibres provides viscous damping, reducing motion caused by transient shock and vibration.
A range of densities and spring rates are available to provide load-bearing capacities from 1 to 500 PSI (0.07 to 35 kg per sq. cm). The annealed fibreglass of the isolation media is produced by a multiple flame attenuation process which generates fibers having a modulus of elasticity of 10.5 million PSI (738,223 kg/sq. cm) and nominal fibre diameters of less than .00027 inches (6.8 microns). The matrix of glass leaf springs is bonded at all fibre intersections with a water-resistant binder during molding under controlled heat and pressure. The material is then stabilized by ten (10) precompression cycles to three (3) times the maximum published load capacity for the media.
Model KIP fibreglass isolators uniquely allow a wide range of loading on a given isolator while maintaining a constant natural frequency. Natural frequency of Model KIP fibreglass media is controlled by isolator thickness rather than static deflection as with linear steel springs. To determine the natural frequency for other than 1″ (25 mm) isolator thickness, the 1″ (25 mm) thick isolator natural frequency is divided by the square root of the actual thickness to be used, i.e. the natural frequency of a 4″ (102 mm) thick isolator is one-half the natural frequency of a 1″ (25 mm) isolator at the same load for the same density material.
Model KIP fibreglass is unique as a structural support in that applied loads are substantially below precompression loads thus providing 300% or more overload safety factor. The result is permanent resiliency with constant natural frequency.
Model KIP fibreglass is non-corrosive, non-combustible, non-absorbent, and resists rust, ozone, mildew and fungus. It is vermin, insect and rodent proof, will not shrink, swell, or decompose. Isolation characteristics of the media are constant over a temperature range of -40°F to 250°F (40°C to 121°C).

  • Inorganic fibreglass media
  • Flexible elastomeric coating
  • Constant natural frequency in wide load range
  • Permanent and predictable resiliency
  • Predictable dynamic response
  • High-energy dissipation
  • Controlled viscous damping
  • Load capacities 1 PSI to 500 PSI (0.07 to 35 kg per sq. cm)
Kinetics Model KIP fibreglass isolators can be applied in a wide range of noise, shock, and vibration isolation uses, and are recommended whenever predictable dynamic response and permanent load support characteristics are important.
Typical noise isolation applications include the use of Model KIP fibreglass isolators integrated into Model RIM and Model FC to create high STC and IIC floating floors.
Typical shock isolation applications include the use of Model KIP fibreglass isolators as support mounts for punch presses, metal shears, and similar industrial process machinery.
Typical vibration isolation applications include the use of Model KIP fibreglass isolators as support mounts for high speed fans, pumps, and chillers, on grade, having operating speeds of 1750 RPM and higher.
Model KIP fibreglass isolators are available in a wide range of standard and special mount configurations for various load ranges, natural frequencies, and other support characteristics.
Model KIP Application image002
Natural Frequency vs Static Load
KIP Natural Frequency
Note: Enlarged portion of curves indicates the allowed load range for various Model KIP isolators used in typical applications. Model KIP selection for floors exposed to high impact/shock loads will vary depending on the floor construction. Factors such as mass and stiffness of the floor assembly as well as stiffness of the entrapped air can affect the actual loads to which individual isolators are exposed under dynamic conditions. Please contact Kinetics Noise Control Engineering Group for design guidelines to ensure proper isolator selection for this type of service.
Static Deflection vs Static Load
KIP Static Deflection
To determine natural frequency for other thickness KIP pads:
for 1/4’’ (6 mm) pads, multiply 1” (25mm) natural frequency by 2.00
for 1/2’’ (13 mm) pads, multiply 1” (25mm) natural frequency by 1.41
for 11/2’’ (38 mm) pads, multiply 1” (25mm) natural frequency by 0.82
for 2’’ (51 mm) pads, multiply 1” (25mm) natural frequency by 0.71
for 3’’ (76 mm) pads, multiply 1” (25mm) natural frequency by 0.58
for 4’’ (102 mm) pads, multiply 1” (25mm) natural frequency by 0.50