VMS (Vibration Management Sheet) High Performance Vibration Management Sheet The VMS has low rebound characteristics, boasting excellent protection foam vibration and shock in its parts. Product Description ITF’s VMS(Vibration Management Sheet) is an excellent shock absorbing and vibration damping polymer urethane foam. Its properties help protect your important parts and components by mitigating external shocks and vibration. The VMS is soft and flexible to be adapted to specific customers’ requirements. Features VMS without external compress Excellent high shock absorption Ultra thin foam : Minimum thickness ~0.01mm Constant and uniform distribution Excellent durability Easily compressed for use where flexibility is a key requirement ROHS Compliant Materials Polymer Urethane VMS with external compress(75%) Applications Absorbs shock when applied to portable electric devices and household appliances. Excellent shieding, shock absorption and anti-vibration when applied to LCD gaskets for displays Enhancement of acoustic shielding, prevention of cracking sounds and buzzing prevention when applied to ringers and speakers Motor vibration absorption and elimination, improved shielding to machine mounts and anti-vibration when applied to motors VMS (Vibration Management Sheet) Products Series Properties Unit Thickness mm g/cm Density 3 % Compressible Ratio(Max.) PFS-IM PFS-IS PFS-IT PFS-IMH PFS-IO 0.5~3.0 0.3~3.0 0.5~3.0 0.2~3.0 0.5~3.0 0.5~3.0 0.23 0.32 0.23 0.34~0.66 0.32/0.42 0.23/0.32 65 65 75 35~65 65/55 75/65 Black Black Black Black Black Black 0.08 0.12 0.08 0.13~0.34 1.5/2.5 0.25/0.35 0.16 0.30 0.16 - - 0.50/0.65 40 45 40 35~45 45~65 30/35 <5 <5 <5 <5 <5 <5 - - - - - 3.5/4.5 % - - - - - 140/180 kgf/cm - - - - - 0.4/0.4 % <1 <1 <1 <1 <1 <1 Color Compression 25% kgf/cm 2 Force Deflection 50% kgf/cm 2 Hardness Compression Set % Tensile Strength kgf/cm Elongation Tear Strength PFS-IR Dimensional Stability 2 12 Ω/sq. Surface Resistivity 1X10 12 1X10 12 12 1X10 1X10 12 12 1X10 1X10 Micro-Foam (X250 SEM Picture) 0.10mm Thickness : 0.1 (mm) Density : 0.28 (g/cm ) Tensile Strength : 1.9 (N/mm ) Elongation : 290(%) Tear Strength : 2.0 (N/mm) Compression Force Def. : 0.2 (%, 25% Comp.) 3 2 Properties of each material ▌Stress-Strain Curve ▌ Rebound Resilience IR IM IS IT IR 0.600 0.500 30 0.400 25 Resilience[%] Stress[kgf/cm2] 35 0.300 0.200 20 15 10 5 0.100 0 0.000 5 10 15 20 25 30 35 S train[%] 40 45 50 55 60 Without Test Method : JIS K6401 Used IT