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Designed for large-diameter pipes and tanks, this insulation is noted for its sustainability, thermal performance and quality. Our 3-ft. wide rolls are faced with a factory-applied FSK or ASJ+ vapor retarder or glass mat facing. It’s easy to install, flexible and offers high compression strength. Thanks to its excellent thermal properties, it supports energy conservation.

Applications

Certifications
Product Features
Quality Design
Earthwool is the benchmark that stands apart for its sustainability, performance and consistently high product quality. It’s also easy to handle and fabricate so install is fast.
ECOSE® Technology
Our patented, bio-based binder is a smarter alternative to using phenol formaldehyde. It’s been foundational in our commitment to sustainability. For the world we live in.
Proven Performance
Offers high compression strength, cutability and excellent thermal properties, assisting in energy conservation. It even recovers the energy it took to make it in just hours or days.
Product Details
Technical Data
Technical Data
Property (Unit) Test Performance
Corrosiveness ASTM C665 Does not accelerate corrosion of steel 
Corrosion ASTM C1617 Pass 
Compressive Strength ASTM C165 Not less than 120 PSF (5.75 kPa) at 10% deformation
Water Vapor Permeance ASTM E96, Procedure A FSK and ASJ+ facings: 0.02 perms
Maximum Service Temperature ASTM C411 850° F (454° C)
Mold Growth ASTM C1338 Pass
Linear Shrinkage ASTM C356 Negligible
Puncture Resistance TAPPI Test T803, Beach Units FSK facing: 25, ASJ+ facing:120
Surface Burning Characteristics (flame spread/smoke developed) ASTM E84, CAN/ULC S102 
NFPA 90A and 90B, UL 723
25/50 
Forms Available
Forms Available
Thickness Width Length
1" (25 mm) 36" (914 mm) 48' (14.63 m)
1½" (38 mm) 32' (9.75 m)
2" (51 mm) 24' (7.32 m)
3" (76 mm) 16' (4.88 m)
4" (102 mm) 12' (3.66 m)

Cut-to-length sizes also available.
Thermal Conductivity k
Thermal Conductivity k
Mean Temperature k k (Si)
100° F (38° C) 0.26 0.037
200° F (93° C) 0.35 0.050
300° F (149° C) 0.45 0.065
400° F (204° C) 0.57 0.082
500° F (260° C) 0.75 0.108
Stretch-Outs
Stretch-Outs
Nominal Iron Pipe Size Iron Pipe Outside Diameter Thickness
1" (25 mm) 1½" (38 mm) 2" (51 mm) 3" (76 mm)
10" (254 mm) 10¾" (273 mm) 40⅛" (1,019 mm) 43¼" (1,099 mm) 46⅜" (1,178 mm) 52⅝" (1,337 mm)
12" (305 mm) 12¾" (324 mm) 46⅜" (1,178 mm) 49½" (1,257 mm) 52¾" (1,340 mm) 59" (1,499 mm)
14" (356 mm) 14" (356 mm) 50⅜" (1,280 mm) 53½" (1,359 mm) 56⅝" (1,438 mm) 62⅞" (1,597 mm)
16" (406 mm) 16" (406 mm) 56⅝" (1,438 mm) 59¾" (1,518 mm) 62⅞" (1,597 mm) 69⅛" (1,756 mm)
18" (457 mm) 18" (457 mm) 62⅞" (1,597 mm) 66" (1,676 mm) 69⅛" (1,756 mm) 75½" (1,918 mm)
20" (508 mm) 20" (508 mm) 69⅛" (1,756 mm) 72⅜" (1,838 mm) 75½" (1,918 mm) 81¾" (2,076 mm)
22" (559 mm) 22" (559 mm) 75½" (1,918 mm) 78⅝" (1,997 mm) 81¾" (2,076 mm) 88" (2,235 mm)
24" (610 mm) 24" (610 mm) 81¾" (2,076 mm) 84⅞" (2,156 mm) 88" (2,235 mm) 94⅜" (2,397 mm)
26" (660 mm) 26" (660 mm) 88" (2,235 mm) 91⅛" (2,315 mm) 94⅜" (2,397 mm) 100⅝" (2,556 mm)
28" (711 mm) 28" (711 mm) 94⅜" (2,397 mm) 97½" (2,477 mm) 100⅝" (2,556 mm) 106⅞" (2,715 mm)
30" (762 mm) 30" (762 mm) 100⅝" (2,556 mm) 103¾" (2,635 mm) 106⅞" (2,715 mm) 113⅛" (2,873 mm)
32" (813 mm) 32" (813 mm) 106⅞" (2,715 mm) 110" (2,794 mm) 113⅛" (2,873 mm) 119½" (3,035 mm)
34" (864 mm) 34" (864 mm) 113⅛" (2,873 mm) 116¼" (2,953 mm) 119½" (3,035 mm) 125¾" (3,194 mm)
36" (914 mm) 36" (914 mm) 119½" (3,035 mm) 122⅝" (3,115 mm) 125¾" (3,194 mm) 132" (3,353 mm)
38" (965 mm) 38" (965 mm) 125¾" (3,194 mm) 128⅞" (3,273 mm) 132" (3,353 mm) 138¼" (3,512 mm)
40" (1,016 mm) 40" (1,016 mm) 132" (3,353 mm) 135⅛" (3,432 mm) 138¼" (3,512 mm) 144⅝" (3,673 mm)
42" (1,067 mm) 42" (1,067 mm) 138¼" (3,512 mm) 141½" (3,594 mm) 144⅝" (3,673 mm) 150⅞" (3,832 mm)

*Additional 2" (51 mm) to 4 (102 mm) should be added for staple flap.
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