Urethane CS Block

BRAND: Insu-W-Rapid Americas LLCSKU: UR-CSB-1 SIZE

AT A GLANCE

Max temp300°F (typ. polyurethane service limit per ASTM C591)

FormCurved segment (cylindrical section) block

Thickness4", asphalt-coated

Rigid polyisocyanurate (PIR) cylindrical-section (curved segment) block, asphalt-coated, for insulating tanks and large-diameter vessels on cold service.

↓ SPEC SHEET (PDF)

TECHNICAL DATA

StandardASTM C591 (rigid cellular PIR); Nestaan / Elliot bunstock per IWRA 2026-Q3

Thermal conductivity (k)0.19 @ 75°F (typ. aged design value for 2-pcf PUR/PIR)

Density3.0 lb/ft3 nominal (3# PIR curved segments per IWRA 2026-Q3 price list)

CombustibilityCombustible — protect from high heat sources; cover per code

APPLICATIONS

Cold-service tanks and vessels
Large-diameter equipment
Refrigeration and process cold work

FEATURES

Closed-cell rigid foam
Low thermal conductivity
Fabricated to fit vessel radius
Optional asphalt vapor-barrier coating

PACKAGING & PAIRS WITH

PackagingFabricated segments, bagged/cartoned

Handling & storageStore indoors; protect from UV and open flame; asphalt-coated sections: avoid stacking in heat

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