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Pyropel® MD-18 Medium Density

Pyropel® MD-18 is a lightweight, high-temperature, semi-rigid insulation material. It can be formed into complex shapes or cut from flat sheets, and will withstand continuous use up to 550°F and intermittent exposure up to 800°F. It will not burn or melt when exposed to direct flame and emits virtually no toxic fumes and very little smoke during thermal decomposition.

Typical Uses / Industry

Pyropel MD-18 is more rigid and tougher than MD-12 with enhanced durability due to its' higher density. The improved mechanical properties make Pyropel MD-18 the choice for non- load bearing industrial applications.

Typical industrial process applications are perimeter insulation on tooling used in plastic and rubber molding, flat and blown film extrusion, resin transfer molding and thermoset and thermoplastic compression molding. Pyropel MD-18 is also used to insulate guards, shrouds, ovens and other heated machinery resulting in lower operating cost and improving employee safety and comfort.

Custom Finishing and Fabricating

Pyropel MD-18 is available in sheets or parts made to customer specifications. 

Pyropel MD-18 Specifications

Physical Properties
Form

Semi-Rigid Fiberboard

Color

Gold

Density

18 lb/ft3

Standard Thickness

1/16", 1/8" 3/16", 1/4”

Mechanical Properties
Tensile Modulus

27,000 psi

Yield Strength (2% Offset)

1,700 psi

% Elongation @ 2% Offset

6%

% Elongation @ Break

22%

Compressive Modulus:

2,200 psi

Strength @ 2% Strain

15 psi

Flexural Modulus

6,620 psi

Thermal Properties
Continuous Use Temperature

550˚F

Glass Transition Temp (Tg)

600˚F

Thermal Conductivity (k) BTU•in/hr•ft2•ºF:
@77˚F

.27

@200˚F

.31

@400˚F

.36

Flammability Rating (UL-94)

94V-0


Additional Resources

Pyropel MD-18 Technical Bulletin

Plastics and Rubber Brochure

NOK Case Study

Honeywell Case Study


For More Information - Call 508-273-2628, email This email address is being protected from spambots. You need JavaScript enabled to view it. or fill out the form below.

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