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Saint-Gobain K40.250
Korel® Polyurethane Foam

General Information
K40.250 is a 250 mil, polyurethane foam use in cellular phones and electrical enclosures. The Korel K40 series is a medium deflection urethane foam with minimal compression set. The series also offers low out gassing and exceeds fogging requirements.
Backing Adhesive
(unwind)		 Thickness
(total)		 Liner Type
(outer)
PU - Polyurethane Acrylic 250.00 mil  

Adhesion to Steel
180° Peel		 Adhesive Activation Tensile Strength Elongation Percent
  Pressure 198.00 lbs/in 380.00%

Min Application
Temp		 Min Service
Temp		 Max Short-Term
Temp		 Max Long-Term
Temp
40 °F 0 °F 250 °F 158 °F
Adhesive Tape Features
  • Excellent compression set-resistance@73°F=<2%
  • Compression set-resistance@158°F=<7%
  • Hardness (shore 0)=53
  • Tear strength= 26pli
  • Available cast on to polyester film for stability and low deformation
  • Modulus=85psi
  • Thermal conductvity=0.6BTU-in/hr-sq ft°F
  • Fogging=pass
  • Outgassing TML=1.18%
  • Outgassing CVCM=0.25%
  • Density=20 #/ft cubed
  • Resistant to moisture and most chemicals
  • Conformable and flexible even in extreme environmental conditions
  • Easy to achieve intricate die-cut parts
  • Aggressive acrylic adhesive facilitates assembly
  • Highly resilient (will not collapse)
Adhesive Tape Applications
  • Dissipates stresses
  • Cellular telephones
  • Electrical enclosures
  • Electronic Gasketing
  • Vibration damping
  • Cushioning
  • Acoustical control
  • Bumpers
  • Instrument panels
  • Spacers
Adhesive Tape Markets Served
Adhesive Tape Colors
  • Black

Comparable products

Saint-Gobain K40.250 View Datasheet
Korel® Polyurethane Foam
Backing Adhesive Thickness Adhesion
 PU - Polyurethane   Acrylic   250.00mil   oz/in 

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