MATERIALS AND TEMPERATURE
TYPE FORM TEMP. RANGE oC (oF) *K-FACTOR/MEAN TEMP.
NOTES
Note 3 applies to all materials listed - see below.
GLASS CELLULAR Pipe InsulationBlock Segments -267.8oC to
482.2oC (-450oF to 900oF) .04 @10oC(.29 @ 75oF) Good strength,
water and vapor resistant, noncombustible, poor abrasion resistance.
GLASS FIBER Pipe Insulation Board -51.1oC to 537.8oC (-60oF to
1000oF) .033 @ 23.9oC (.23 @ 75oF) Good workability, noncombustible,
water absorbent.
ELASTOMERIC Pipe Tubes Sheets -40.0oC to 104.4oC (-40oF to 220oF)
.039 @ 23.9oC (.27 @ 75oF) Closed cell, good workability, finish optional.
MINERAL FIBER Pipe Insulation
Board
Blanket -29.9oC to 537.8oC
(-20oF to 1000oF) .035 @ 23.9oC (.23 @ 75oF) Good workability,
noncombustible
PHENOLIC (Foamed) Pipe Insulation -178.8oC to 121.1oC (-290oF
to 250oF) See Note 1 Check manufactures' data sheets for properties.
POLYSTYRENE(Extruded) Pipe Insulation Board -182.8oC to 73.9oC
(-297oF to 165oF) .027 @ 23.9oC(.19 @ 75oF) See Note 2 - below
POLYSTYRENE(Expanded) Pipe InsulationBoard -40.0oC to 73.9oC
(-40oF to 165oF) .027 @ 23.9oC(.19 @ 75oF) See Note 2 - below
POLYURETHANE Pipe InsulationBoard -73.3oC to 104.4oC (-100oF
to 220oF) .027 @ 23.9oC(.19 @ 75oF) See Note 3 - below
POLYISOCYANU-RATE Pipe InsulationBoard -182.8oC to 148.9oC
(-297oF to 300oF) .027 @ 23.9oC(.19 @ 75oF) See Note 3 - below
POLYETHYLENE Pipe InsulationSheets -67.8oC to 100.0oC
(-90oF to 212oF) .035 @ 23.9oC(.25 @ 75oF) See Note 3 - below
Notes:
1. See manufacturer's data for K-factor.
2. Lightweight, good workability. Check manufacturers' data. Combustible.
Some are treated for fire retardancy. All are closed cell except polystyrene
(Expandd).
3. K-value may change as these materials age.
5. Temperature range and K-Factor data were compiled from current manufacturer's
published literature. Consult specific manufacturer's data for application
methods.
6. Special attention must be given to high humidity / high temperature
applications, specifically vapor retarder systems.
MATERIALS 2
