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Structural Insulation

Description

Mightylite™ is an inorganic, incombustible material. Chemically Mightylite® features an xonotlite crystal structure that results in exceptional strength and extremely low water of hydration. Mightylite™ is composed primarily of lime, silica, and reinforcing fibers. This product is white, essentially dust free, and contails no asbestos.

Coatings

High temperature coating for resistant to flow of gas or liquid is available.

CNC machining

Available upon request

Applications

Since Mightylite™ possesses good strength as well as exceptional insulation qualities, it can be readily machined into component parts of many sizes and shapes.

Uses include fire rated enclosures around kitchen exhaust hoods, fire proofing structural steel and fire rated walls. It is used for bottom or sidewall insulation in aluminum electrolysis cells and for refractory backer in furnaces, boilers and kilns.

Available Forms

Mightylite™ is manufactured in 4' x 8' (1.22 m x 2.44 m) and 4' x 4' (0.61 m x 1.22 m) panels with a sanded finish on both sides. Thickness range from ¾" (19 mm) through 3" (76 mm).

Physical Properties	L	M	H	X	S
Density pcf kg/m3	18 (288)	28 (449)	35 (561)	40 (641)	55 (881)
Maximum Recommended Continuous Service Temperature ºF ºC	1800 (982)	1800 (982)	1700 (927)	1700 (927)	1700 (927)
Flexural Strength psi kPa	260 (1,793)	550 (3,792)	800 (5,516)	1000 (6,895)	1400 (9,653)
Compressive Strength @ 10% Deformation psi kPa	450 (3,103)	900 (6,206)	1600 (11,032)	2000 (13,790)	4200 (28,959)
Linear Shrinkage After 24 Hours at Temperature, % Temp.ºF(ºC) Length Width Thickness Weight Loss	1700 (927) 1.0 1.0 2.1 9.6	1700 (927) 0.9 0.9 2.3 9.7	1200 (649) 0.5 0.5 1.0 8	1700 (927) 0.7 0.8 3.28 9.9	1700 (927) 0.6 0.7 3.2 10.4
Temp.ºF(ºC) Length Width Thickness Weight Loss	- - - - -	- - - - -	1400 (760) 1.0 1.0 2.5 10	- - - - -	- - - - -
Temp.ºF(ºC) Length Width Thickness Weight Loss	- - - - -	- - - - -	1600 (871) 1.0 1.0 2.5 10	- - - - -	- - - - -
Temp.ºF(ºC) Length Width Thickness Weight Loss	- - - - -	- - - - -	1800 (982) 1.5 1.5 3.5 11	- - - - -	- - - - -

Physical Properties
Thermal Conductivity
(K)
Mean Temp.ºF(ºC)
Btu•in/hr•ft2•ºF
W/m•ºK

Mean Temp.ºF(ºC)
Btu•in/hr•ft2•ºF
W/m•ºK

Mean Temp.ºF(ºC)
Btu•in/hr•ft2•ºF
W/m•ºK

Mean Temp.ºF(ºC)
Btu•in/hr•ft2•ºF
W/m•ºK

L

200(93)
.54
0.078

400(204)
.61
0.088

600(316)
.67
0.097

800(427)
.73
0.105

M

200(93)
.61
0.088

400(204)
.66
0.095

600(316)
.73
0.105

800(427)
.80
0.115

H

200(93)
.65
0.094

400(204)
.70
0.101

600(316)
.75
0.108

800(427)
.80
0.115

X

200(93)
.65
0.094

400(204)
.70
0.101

600(316)
.75
0.108

800(427)
.80
0.115

S

-
-
-

400(204)
.97
0.140

600(316)
.99
0.143

800(427)
1.05
0.151

*Standard Thickness *(Other thicknesses available upon request.)

L ¾", 1", 1½", 2", 2½", 3" (19, 25, 38, 51, 64, 76 mm)
M ½", ¾", 1", 1½", 2", 2½", 3" (13, 19, 25, 38, 51, 64, 76 mm)
H ½", ¾", 1", 1½" (13, 19, 25, 38 mm)
X ½", ¾", 1", 1½", 2" (13, 19, 25, 38, 51 mm)
S ½", ¾", 1", 1½", 2" (13, 19, 25, 38, 51 mm)

Consolidation Under Load (in/in)

Pressure
psi
200
500
1000
2000
3000
4000
5000
6000
7000

kPa
1,379
3,448
6,895
13,790
20,685
27,580
34,475
41,370
48,265

Deflection Under
Load
0.008
0.014
0.022
0.059
0.120
0.243
0.325
0.364
0.412

Permanent
Consolidation
0.002
0.002
0.003
0.005
0.057
0.164
0.248
0.287
0.337

Compressive Strength After Exposure To Soaking Head for 24 Hours:

Pressure

psi
500
1000
2000
3000
4000
5000
6000

kPa
3,448
6,895
13,790
20,685
27,580
34,475
41.370

300ºF (149ºC)
DF
0.008
0.012
0.017
0.022
0.028
0.030
0.044

PC
0.000
0.000
0.001
0.001
0.001
0.001
0.002

400ºF (204ºC)
DF
0.008
0.013
0.017
0.019
0.022
0.027
0.037

PC
0.001
0.001
0.002
0.002
0.002
0.004
0.004

600ºF (316ºC)
DF
0.052
0.056
0.062
0.066
0.076
0.076
0.082

PC
0.001
0.002
0.002
0.002
0.002
0.003
0.014

800ºF (427ºC)
DF
0.050
0.050
0.053
0.068
0.076
0.086
0.099

PC
0.002
0.002
0.002
0.003
0.004
0.006
0.011

1000ºF (538ºC)
DF
0.056
0.060
0.066
0.072
0.079
0.100
0.125

PC
0.002
0.002
0.002
0.004
0.005
0.010
0.014

DF=Deformation Under Load, inches. To convert inches to millimeters in above table, multiply by 25.4
PC=Permanent Consolidation, inches. To convert inches to millimeters in above table, multiply by 25.4.

Standard Sizes
Sheet size 4'x4' (1.22 m x 1.22 m)
Dimensional Tolerances Length and Width 1/8" (3 mm)
Thickness 1/32" (0.8 mm)

Download PDF Spec Sheet