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Insulation R Values: rubber pure gum
1694 to 1741
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 | 1694 | 1/26/1967 | 25.39 | 1.0057 | 61.66 | Commercial gum rubber | Slab | 1.1275 | (Dynatech Corporation) | Rubber, Pure Gum | 19.03 | 0.127918 | 0.022528 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1695 | 2/3/1967 | 22.99 | 1.0473 | — | Amber pigment, 35-45 durometer, 1 in. | Slab | 1.0644 | (Potomac Rubber Co.) | Rubber, Pure Gum | 129.76 | 0.135502 | 0.023863 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1702 | 7/6/1967 | 21.41 | 1.0315 | — | Amber pigment, 35-45 durometer, 1 in. | Slab | 1.062 | (Potomac Rubber Co.) | Rubber, Pure Gum | 70.53 | 0.135808 | 0.023917 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1703 | 7/10/1967 | 21.45 | 1.0319 | 60.8 | MIL 880A, 30-45 durometer, 1 in. | Slab | 1.0565 | (Potomac Rubber Co.) | Rubber, Pure Gum | 70.37 | 0.136515 | 0.024042 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1713 | 9/25/1967 | 24.29 | 0.995 | 61.24 | Amber pigment, 35-45 durometer, 1 in. | Slab | 1.0767 | (Potomac Rubber Co.) | Rubber, Pure Gum | 75.24 | 0.133954 | 0.023591 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1719 | 10/5/1967 | 9 | 0.2508 | — | Sheet, 2 per side, each 1/8 in., (1,2,3,4), ¼ in. | Slab | 1.0289 | — | Rubber, Pure Gum | 68.91 | 0.140177 | 0.024687 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1731 | 2/20/1968 | 23.47 | 1.0877 | 59.18 | Commercial gum rubber | Slab | 1.0732 | (Dynatech Corporation) | Rubber, Pure Gum | 131.17 | 0.134391 | 0.023668 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1732 | 2/21/1968 | 21.43 | 1.0618 | 60.62 | Commercial gum rubber | Slab | 1.0684 | (Dynatech Corporation) | Rubber, Pure Gum | 0.36 | 0.134994 | 0.023774 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1737 | 7/9/1968 | 23.07 | 1.0039 | 60.87 | Amber pigment, 35-45 durometer, 1 in. | Slab | 1.0601 | (Potomac Rubber Co.) | Rubber, Pure Gum | 130.43 | 0.136051 | 0.02396 | NIST SRD 81 API | ASTM C 177 |
| rubber pure gum | 1741 | 7/15/1968 | 23.21 | 0.9927 | 61.56 | Amber pigment, 35-45 durometer, 1 in. | Slab | 1.0605 | (Potomac Rubber Co.) | Rubber, Pure Gum | 74.11 | 0.136 | 0.023951 | NIST SRD 81 API | ASTM C 177 |
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