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ISO-C1® Polyiso Pipe, Tank and Equipment Insulation
  • Superior Aged k-factor down to 0.16 Btu•in/hr•ft2•°F at 75°F
  • FM Specification Tested; Class 1 per ASTM E84
  • Meets or Exceeds ASTM C591 Requirements
  • Lowest Water Vapor Transmission and Thermal Conductivity in the Industry
  • Suitable for Process Temperatures from -297°F to +300°F


ISO-HT® Polyisocyanurate for Hot Process and Low Temperature Steam
  • For continuous temperatures up to 350°F (177°C), Intermittent to 375°F (190°C)
  • Class 1 Flame/Smoke per ASTM E84
  • Excellent thermal performance: 0.16 BTU•in/hr•ft2•°F at 75°F
  • Flexible sheets to fit around tanks


ISO-C1® Polyiso Sheets for Insulated Panels
  • Excellent aged k-factors down to 0.16 Btu•in/hr•ft2•°F at 75°F
  • Class 1 flame/smoke per ASTM E84
  • Widths up to 52 inches and lengths up to 24 feet
  • Any thickness: as thin as 0.125", with +/- 0.03125" tolerances
  • Excellent flexibility to wrap tanks
  • FM4880 Approvals

An Insulation System For Each Temperature Range


Pursuant to the Montreal Protocol and Dyplast Products' commitment to environmental sustainability, all of our production lines create CFC-free and HCFC-free products.

Dyplast Products is one of the world leaders in pentane blowing agents for polyisocyanurate bunstock, which we cut into sheets and blocks for pipe, roof, and wall insulation applications. Our proprietary technology using hydrocarbon blowing agents delivers the superior quality and properties you have come to expect from Dyplast Products, including of course excellent structural integrity, workability, and friability. All at highly competitive pricing!

We invite you to take the on-line tour or to contact us about a visit our facility!