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Insulation R Values: rubber pure gum
1027 to 1142
Insulation R-values and thermal conductivity data from NIST SRD 81 — covers fiberglass, foam, cellulose, mineral wool, and other building insulation materials
| material id | record id | date | delta t (F) | delta x (in) | density (lb/ft3) | description | form | k w mk (W/mK) | manufacturer | material | mean temp (F) | r value per inch (ft2hF/BTU/in) | rsi per inch (m2K/W/in) | standard | test method |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| rubber pure gum | 1027 | 2/7/1956 | 23.7 | 0.9478 | 60.27 | 35-45 durometer, 1 in. | Slab | 1.0344 | (Potomac Rubber Co.) | Rubber, Pure Gum | 73.54 | 0.139431 | 0.024555 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1028 | 2/8/1956 | 22.68 | 0.955 | 60.27 | 35-45 durometer, 1 in. | Slab | 1.0352 | (Potomac Rubber Co.) | Rubber, Pure Gum | 128.12 | 0.139324 | 0.024536 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1055 | 1/25/1957 | 22.53 | 0.9452 | — | 35-45 durometer, (5,6), 1 in. | Slab | 1.0351 | (Potomac Rubber Co.) | Rubber, Pure Gum | 72.51 | 0.139337 | 0.024539 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1056 | 1/28/1957 | 22.52 | 0.945 | — | 35-45 durometer, (5,6), 1 in. | Slab | 1.0376 | (Potomac Rubber Co.) | Rubber, Pure Gum | 72.36 | 0.139001 | 0.02448 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1089 | 12/20/1957 | 24.77 | 1.0101 | — | Amber pigment, 1 in. | Slab | 1.0569 | — | Rubber, Pure Gum | 74.29 | 0.136463 | 0.024033 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1128 | 1/22/1959 | 16.13 | 0.5609 | — | Sheet, 4 per side, each 1/8 in., ½ in. | Slab | 1.0779 | — | Rubber, Pure Gum | 123 | 0.133805 | 0.023564 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1130 | 3/3/1959 | 12.03 | 0.4387 | 60.06 | ½ in. | Slab | 1.0264 | — | Rubber, Pure Gum | 119.33 | 0.140518 | 0.024747 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1140 | 3/25/1959 | 24.35 | 0.993 | 61.5 | Amber pigment, 35-45 durometer, 1 in. | Slab | 1.0714 | (Potomac Rubber Co.) | Rubber, Pure Gum | 74.15 | 0.134616 | 0.023707 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1141 | 3/26/1959 | 22.99 | 1.0039 | 60.83 | Amber pigment, 35-45 durometer, 1 in. | Slab | 1.067 | (Potomac Rubber Co.) | Rubber, Pure Gum | 129.17 | 0.135171 | 0.023805 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1142 | 3/27/1959 | 24.33 | 0.9827 | 62.14 | Amber pigment, 35-45 durometer, 1 in. | Slab | 1.0711 | (Potomac Rubber Co.) | Rubber, Pure Gum | 43.26 | 0.134654 | 0.023714 | NIST SRD 81 API | ASTM C 177 |
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