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Rulon Bearings
ITW Insulation TRYMER® 350L Polyisocyanurate Foam
Categories: Other Engineering Material; Composite Core Material; Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane Foam, Unreinforced

Material Notes: TRYMER® 350L polyisocyanurate foam is a cellular polymer supplied in bunstock form. It is ideal for applications in which a lightweight, high-density core material is needed. This product is easily fabricated into sheets and other shapes and is less brittle than conventional polyisocyanurate foams, for improved handling.

Applications: TRYMER®350L foam is used extensively in composite panel applications. It has a low index compared to conventional polyisocyanurate foams, a feature that offers improved shear, tensile and flexural strengths, and allows better adhesion to facers using standard adhesives. The foam is also compatible with most thermoset resin adhesives, including vinyl esters and epoxies. ITW can provide general guidelines and recommendations for TRYMER® 350L foam. Some typical applications include:

  • Core material for insulated architectural and structural panels
  • Core material for factory built panelized construction systems
  • Insulation for shipping containers, trucks or railcars
  • Core material for boats and yacht hulls
  • Core material for military shelter applications

Information provided by ITW Insulation Systems

Available Properties
  • Density, ASTM D1622
  • Water Absorption, ASTM C272, immersion
  • Tensile Strength, ASTM D1623, 3D
  • Tensile Modulus, ASTM D1623, parallel to rise
  • Flexural Strength, ASTM C203, parallel to rise
  • Flexural Modulus, ASTM C203, parallel to rise
  • Compressive Strength, ASTM D1621, parallel to rise
  • Compressive Modulus, ASTM D1621, parallel to rise
  • Shear Modulus, ASTM C273, parallel to rise
  • Shear Strength, ASTM C273, average of parallel to rise and extruded directions
  • Thermal Conductivity, ASTM C518
  • Maximum Service Temperature, Air
  • Minimum Service Temperature, Air
  • Flame Spread Index, ASTM E84
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