PRODUCT DATA SHEET
UR-CSB-DL- · REV 1 · Jul 2026
Insulation Mat & Board · Urethane
Urethane CS Block DL
BRAND: Insu-W-Rapid Americas LLCSKU FAMILY: UR-CSB-DL-1 STOCKED SIZE
Rigid polyisocyanurate (PIR) cylindrical-section block in double-layer sets (sold per 9 linear feet), asphalt-coated, for large-diameter cold-service vessels.
AT A GLANCE
Max service temp300°F (typ. polyurethane service limit per ASTM C591)
FormCurved segment block (double layer)
Thickness range4-1/2", asphalt-coated, 9 lf sets
StandardASTM C591
TECHNICAL DATAPER MANUFACTURER
| Standard / specification | ASTM 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) |
| Density | 3.0 lb/ft3 nominal (3# PIR curved segments per IWRA 2026-Q3 price list) |
| Combustibility | Combustible — protect from high heat sources; cover per code |
APPLICATIONS
- Cold-service tanks and vessels
- Large-diameter equipment
- Refrigeration and process cold work
STOCKED SIZES & SKUS1 SIZES
| SKU | SIZE |
|---|
| UR-CSB-DL-450-AC | Urethane CS Block 4.5" Asphalt Coated DL |
FEATURES
- Closed-cell rigid foam
- Low thermal conductivity
- Fabricated to fit vessel radius
- Optional asphalt vapor-barrier coating
PACKAGING & HANDLING
| Packaging | Fabricated segments, bagged/cartoned |
| Handling & storage | Store indoors; protect from UV and open flame; asphalt-coated sections: avoid stacking in heat |
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Data shown is nominal and per the manufacturer's published literature; verify against the current submittal and SDS before specifying. Sun City Energy Supplies stocks to spec, fabricates to size, and returns quotes the same business day. Informational only — not a warranty of fitness for a particular purpose.