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AEROFLEX Standard Sheet 3 mm · 36 × 48 in (3 × 4 ft)
- Thickness (mm)
- 3
- Dimensions
- 36 × 48 in (3 × 4 ft)
Sound coming in or going out (sound insulation)
Echoey rooms (sound absorption)

Flat elastomeric sheet for large pipes, air-conditioning ducts, tanks and shaped equipment — prevents condensation and reduces cooling loss.
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See all models and sizesManufacturer documentsTechnical specifications
Closed-cell EPDM elastomeric foam, flat sheet 36 × 48 in
AEROFLEX standard sheet (S-series) is closed-cell EPDM elastomeric insulation in 36 × 48 in sheets, 1/8 to 2 in thick. It is used on large pipes, air-conditioning ducts, large tanks and shaped equipment such as chiller bodies, pumps and large fittings. The 1/8, 1/4 and 3/8 in sheets have a smooth skin on one side only.
Elastomeric rubber foam · Sheet
Thickness 3–50 mm — Choose a size
AEROFLEX brochure (AF/OCT 2024) — standard packing table p.7
Technical data from the manufacturer's documents Aeroflex · Checked 12 Oct 2026
All values come from the manufacturer's documents, with conditions and test standards. Values the documents do not state are not shown.
| Property | Value | Conditions / standard | Source |
|---|---|---|---|
| Sheet size | 36 × 48 in | 4 ft × 3 ft · 1/8" – 2" thick | AEROFLEX brochure (AF/OCT 2024) — standard packing table p.7, p. 7 |
| Thermal conductivity (λ) | 0.033 / 0.035 / 0.038 W/m·K | at 0 / 24 / 40 °C mean · ASTM C177, ASTM C518, ISO 8497, JIS A 1412-2 | AEROFLEX brochure (AF/OCT 2024) — standard packing table p.7, p. 3 |
| Density | 40 – 80 kg/m³ | under 25 mm thick: 48–80 · ASTM D1667 | AEROFLEX brochure (AF/OCT 2024) — standard packing table p.7, p. 3 |
| Service temperature range | -57 – 125 °C | — | AEROFLEX brochure (AF/OCT 2024) — standard packing table p.7, p. 3 |
| Reaction to fire | V-0 | UL 94 | AEROFLEX brochure (AF/OCT 2024) — standard packing table p.7, p. 3 |
| Reaction to fire | 25/50 | flame spread / smoke developed · ASTM E84 | AEROFLEX brochure (AF/OCT 2024) — standard packing table p.7, p. 3 |
| Water vapour permeability | < 0.10 perm·in | ASTM E96 | AEROFLEX brochure (AF/OCT 2024) — standard packing table p.7, p. 3 |
| Model | Thickness (mm) | Dimensions |
|---|---|---|
| S 1843 | 3 | 36 × 48 in (3 × 4 ft) |
| S 1443 | 6 | 36 × 48 in (3 × 4 ft) |
| S 3843 | 9 | 36 × 48 in (3 × 4 ft) |
| S 1243 | 13 | 36 × 48 in (3 × 4 ft) |
| S 3443 | 19 | 36 × 48 in (3 × 4 ft) |
| S 1043 | 25 | 36 × 48 in (3 × 4 ft) |
| S 11443 | 32 | 36 × 48 in (3 × 4 ft) |
| S 11243 | 38 | 36 × 48 in (3 × 4 ft) |
| S 2043 | 50 | 36 × 48 in (3 × 4 ft) |
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