Owens Corning

EXTRUDED POLYSTYRENE FABRICATION BILLETS

Used as low-temperature pipe and equipment insulation, FOAMULAR® XPS Pipe Insulation is ideal for various cold service applications - including ammonia/refrigeration, and food and beverage service processing.

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Two extruded polystyrene fabrication billets

FOAMULAR® NGX® High-Performance XPS Insulation

Owens Corning® FOAMULAR® NGX® insulation offers all the performance and ease-of-use you expect from Owens Corning® FOAMULAR® insulation with industry-leading sustainability. Learn how FOAMULAR® NGX® meets the new environmental regulations for Canada and a growing list of US states.

Learn About NGX®

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FOAMULAR® Pipe Billets: XPS Insulation vs. EPS Insulation
FOAMULAR® Pipe Billets: XPS Insulation vs. EPS Insulation

Technical Information

PROPERTY

ASTM METHOD

SI/METRIC

ENGLISH

Thermal Conductivity, maximum,
Btu•in/ft2•hr•°F
180 days @ 75°F mean temperature 2,3

ASTM C518

0.029 W/mK

0.20 BTU •in/hr • °F • ft2

Compressive Strength, minimum, psi (kPa) 2,4

ASTM D1621

≥ 173 kPa

≥ 25 psi

Water Absorption, maximum, % by volume 2,5

ASTM C272

≤ 0.15

≤ 0.15

Water Vapor Permeance maximum, perm (ng/P•s•m2) 2,6

ASTM E96

≤ 1.1 ng/Pa • s • m2

≤ 0.019 perm

Dimensional Stability2, % linear change

ASTM D2126

2%

2.0

Surface Burning Characteristics7,8

ASTM E84

Flame Spread Index 10
Smoke Developed Index 75

Service Temperature

 -196 to 74°C

-320 to 165°F

Linear Coefficient of Thermal Expansion2

ASTM E228

6.3 • 10-5/K

3.5 • 10-5/°F

2 XPS foam core values meet ASTM C578 TYPE IV.
3 k means the apparent thermal conductivity. The lower the value, the greater the insulation power.
4 Values at yield or 10% deflection, whichever occurs first.
5 Data ranges from 0.00 to value shown due to the level of precision of the test method.
6 Water vapor permeance decreases as thickness increases.
7 These laboratory tests are not intended to describe the hazard presented by this material under actual fire conditions.
8 Fire performance of FOAMULAR® 4-inch-thick product only. Thicker products may have different fire performance characteristics. Due to limits on the equipment used to test per ASTM E84, Owens Corning® FOAMULAR® XPS Fabrication Billets have not been tested.

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