Explore the Engineering Database more efficiently by signing up for free. Sign up free

R-527 — Perlite

Material Id
Perlite
Record Id
527
Date
2/23/1948
Delta T (F)
22.84
Delta X (in)
0.9999
Density (lb/ft3)
9.15
Description
Ryolex®, Heavy
Form
Loose
K W Mk (W/mK)
0.3689
Manufacturer
Silbrico Corporation
Material
Perlite
Mean Temp (F)
71.1
R Value per Inch (ft2hF/BTU/in)
0.390967
Rsi per Inch (m2K/W/in)
0.068853
Standard
Nist Srd 81 API
Test Method
ASTM C 177
Trade Name
Ryolex®

Source: NIST SRD 81 API

perlite — record id 527 · rsi per inch 0.0688533 m2K/W/in · r value per inch 0.390967 ft2hF/BTU/in · date 2/23/1948 · k w mk 0.3689 W/mK | Insulation R Values | Engineering Database