PROPERTIES ASTM MB1000-
PC
MB1000-
10
MB1000-
15
MB1000-
25
MB2000-
5
MB2000-
8
MB2000-
10
MB2000-
15
MB2000-
20
MB2000-
25
MB3000-
15
MB3000-
15NY
MB3000-
20NY
MB4000 MB5500
Listed File
E80533
- Yes No Yes No Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes
Flammability
UL94
- HB HB HB HB V0 V0/5V V0 V0 V0 V0 V0 V0/5V V0/5V V0 V0
MECHANICAL PROPERTIES  
Impact Strength,
Notched Izod,
Ft Lbs/In
D256 5-6 2.5-3.5 4-6 7-10 1.5-2.5 2-4 4-6 5-7 8-10 10-12 5-7 8-10 8-14 7-10 8-10
Flexural Strength,
Kpsi
D790 10-12 14-16 18-21 19-22 8-11 10-12 13-16 16-18 19-22 23-25 15-17 18-20 18-21 13-17 17-19
Flexural Modulus,
Mpsi
D790 1.3-1.6 2-2.2 1.6-1.8 1.6-1.7 1.3-1.6 1.2-1.5 1.3-1.6 1.5-1.8 1.7-2.0 1.6-1.7 1.4-1.6 1.8-1.9 1.8-1.9 1.7-1.9 1.6-1.8
Tensile Strength,
Kpsi
D638 4.5-5.5 5-6 7-9 8-10 4-5 4-5 4.5-5.5 6.0-7.5 5.0-8.0 8.5-10 5.5-6.0 5-6 6-9 5-6.5 6.0-8.0
Compressive
Strength, Kpsi
D695 20-22 15-18 18-22 20-24 14-16 13-16 17-19 18-21 20-24 20-25 18-20 14-16 14-16 14-15 13-15
Compressive
Modulus, Mpsi
D695 55-57 48-52 52-54 50-54 52-55 50-52 52-55 48-52 57-61 56-60 45-49 50-55 50-55 50-54 46-50
Shear Strength,
Kpsi
D732 10-11 6-7 7-8 7-9 4-5 4-5 6-7 8-9 9-11 10-12 8-9 8-9 8-9 7-8
ELECTRICAL PROPERTIES  
Arc Resistance,
Seconds
D495 180+ 180+ 140+ 185+ 240+ 185+ 185+ 185+ 185+ 185+ 185+ 185+ 185+ 185+
Inclined-Plane
Tracking, Minutes
D2303   500+ 500+ 500+ 1000+ 1000+ 1000+ 1000+ 1000+ 1000+ 1000+ 1000+ 1000+ 1500+ 1000+
Dielectric
Strength, S/T
VPM
D149 Conductive 320 320 355 400+ 350+ 320+ 350+ 350+ 350+ 360+ 360+ 360+ 350+ 350+
PHYSICAL PROPERTIES  
Specific Gravity D792 1.9-2.1 1.9-2.0 1.8-2.0 1.7-1.9 1.8-1.9 2.0-2.1 1.8-1.9 1.8-1.85 1.75-1.8 1.7-1.75 1.8-1.85 1.85-1.95 1.75-1.85 1.7-1.9 1.75-1.8
Mold Shrinkage
0.001/In
D955 0-1 0.5-3 0.5-3 0.5-2 0.5-3 0.5-3 0.5-3 0.5-3 0.5-2 0.5-2 0.5-3 0.5-1.5 0.5-1.5 0.5-3 0.5-2
Barcol Hardness D2583 60-65 35-48 35-45 45-55 25-35 40-50 35-45 35-45 35-45 40-50 40-50 45-55 45-55 41-47 35-45
Heat Distortion
Temp @ 264 psi
Deg F
D648 >500 >500 >500 >500 >500 >500 >500 >500 >500 >500 >500 >500 >500 >500 >500
Water
Absorption
% in 24 hrs
D570 0.17 0.17 0.17 0.13 0.17 0.1 0.14 0.13 0.12 0.13 0.12 0.12 0.12 0.12 0.12
Bulk Factor D1895 1 1 1 3 1 1 1 1 2 3 1.5 1.5 1.5-2 1-1.5 2
COLOR CHANGE UNDER HEAT  
White, 300 ¡ãF
for 300 hrs, ¦¤E
1.2-1.7 1.2-1.7
Bisque, 300 ¡ãF
for 300 hrs, ¦¤E
  1-1.5 1-1.5  
*Values shown are based on standard tests on specified configurations and are offered as a guide. No other guarantee is implied. Characteristics are subject to variations as applied to a specific 
design. Except for any written warranties which may be given by Mar-Bal, Inc., no express or implied warranties are made, and ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE, ARE EXPRESSLY DISCLAIMED. Buyers¡¯ exclusive remedies are limited solely to repair or replacement of nonconforming goods, and CONSEQUENTIAL
DAMAGES ARE EXCLUDED.