Specialty Class

Accura® Bluestone™

 

Composite material for manufacturing stable, high-stiffness parts

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Properties
  • Rigid
  • High temp
  • Durable
  • Chemical-resistant
  • Can be coated
Colors
  • Blue
Finishes
  • Standard
Features

• Highest stiffness available
• Heat and abrasion resistant
• Excellent chemical resistance
• Great for wind tunnel models, jigs and fixtures

Post-Cured Material

MEASUREMENT CONDITION METRIC U.S.
Tensile Strength (MPa/PSI) ASTM D 638 66-68 6900-9800
Tensile Modulus (MPa/KSI) ASTM D 638 7600-11700 1100-1700
Elongation at Break (%) ASTM D 638 1.4 – 2.4 1.4 – 2.4
Flexural Strength (MPa/PSI) ASTM D 790 124-154 1800-2230
Flexural Modulus (MPa/KSI) ASTM D 790 8300-9800 1200-1417
Impact Strength (J/m /Ft-lbs/in) ASTM D 256 13-17 0.24-0.32
Heat Deflection Temperature ASTM D 648
@ 66 PSI
@ 264 PSI
@ 66 PSI
65-66 °C
65 °C
267-284 °C
149-151 °F
149 °F
513-543 °F
Coefficient of Thermal Expansion
(μm/m-°C / μm/in-°F)
ASTM E 831-93
T<Tg (0-30°C): 33-44 T > Tg
(110-150°C): 81-98
33-44
81-98
18.3 – 24.4
45 – 54.4
Glass Transition (Tg) DMA, E” 51 °C 124 °F
Hardness, Shore D 92 92

 

Liquid Material

MEASUREMENT CONDITION VALUE
Viscosity @ 30 °C (86 °F) 1200-1800 cps
Penetration Depth (Dp) 4.1 mils
Critical Exposure (Ec) 6.9 mJ/cm2
Color Blue
Solid Density @ 25 °C (77 °F) 1.78 g/cm3 at 25 °C
Liquid Density @ 25 °C (77 °F) 1.70 g/cm3 at 25 °C
Tested Build Styles EXACT™