PRODUCT DATA SHEET
AF- · REV 1 · Jul 2026
Insulation Mat & Board · Armaflex
Armaflex Sheets
BRAND: Armacell (AP Armaflex)SKU FAMILY: AF-1 STOCKED SIZE
AP Armaflex closed-cell elastomeric foam sheet insulation for tanks, ducts, fittings and irregular surfaces; controls condensation on cold equipment.
AT A GLANCE
Max service temp−297°F to 220°F
FormFlexible sheet
Thickness range1" x 36" x 48"
FacingNone
StandardASTM C534
Flame / smoke25 / 50 (ASTM E84, through 1" wall)
TECHNICAL DATAPER MANUFACTURER
| Standard / specification | ASTM C534 Type II (sheet/roll), Grade 1 |
| Thermal conductivity (k) | 0.25 @ 75°F |
| Water-vapor sorption | 0.05 perm·in (ASTM E96); water absorption ≤0.2% by vol |
| Combustibility | 25/50-rated elastomeric foam (does not meet E136) |
APPLICATIONS
- Chilled-water tanks and equipment
- Ductwork and plenums
- Vessel heads and fittings
- Condensation control
THERMAL CONDUCTIVITY — K VS. MEAN TEMPBTU·IN/HR·FT²·°F
STOCKED SIZES & SKUS1 SIZES
| SKU | NOM. SIZE | WALL / 2ND |
|---|
| AF-36-48 | 36" | 48" |
FEATURES
- Closed-cell — built-in vapor retarder (0.05 perm·in)
- −297°F to 220°F service
- 25/50 rated through 1"
- Fiber-free and formaldehyde-free
- Mold and mildew resistant
PACKAGING & HANDLING
| Packaging | Flat sheets, cartoned |
| Handling & storage | Store flat indoors below 110°F; paint with WB Finish or jacket if installed outdoors |
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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.