Rapid Prototype Company Your First Choice for SLA™, SLS™ and Cast Urethane Parts!

ProtoGen™ 18420 ABS-like photopolymer that produces accurate parts ideal for general purpose applications.

Humidity & temperature tolerant.   High dimensional stability.   Fast Processing speeds.   Superior chemical resistance.

Technical Data:  Liquid Properties Appearance White Viscosity ~350 cps@ 30°C Density 1.16 g/cm3 @ 25°C

Technical Data:  Optical Properties Ec 6.73 mJ/cm2 [critical exposure] Dp 4.34 mils [slope of cure depth vs. In(E) curve] E10 67.6 mJ/cm2 [exposure that gives 0.254 mm (0.010 inch) thickness] Technical Data:  Mechanical Properties ProtoGen™ 18420 UV Postcure at HOC -2 ProtoGen™ 18420 UV Postcure at HOC +3* ProtoGen™ 18420 UV & Thermal Postcure ASTM Method Property Description Metric Imperial Metric Imperial Metric Imperial D638M Tensile Strength 42.2-43.8 MPa 6.1-6.4 ksi 56.9-57.1 MPa 8.2-8.3 ksi 66.1-68.1 MPa 9.6-9.9 ksi D638M Tensile Modulus 2,180-2,310 MPa 316-336 ksi 2,540-2,620 MPa 370-380 ksi 2,880-2,960 MPa 417-430 ksi D638M Elongation at Break 8-16% 8-12% 6-9% D638M Poisson's Ratio 0.43-0.45 not recorded 0.40-0.42 D790M Flexural Strength 66.7-70.5 MPa 9.7-10.2 ksi 83.8-86.7 MPa 12.2-12.6 ksi 84.9-87.7 MPa 12.3-12.7 ksi D790M Flexural Modulus 1,990-2,130 MPa 289-309 ksi 2,400-2,450MPa 350-355 ksi 2,280-2,340 MPa 331-339 ksi D256A Hardness (Shore D) 86-88 not recorded 86-87 D2240 Izod Impact (Notched) 0.20-0.22 J/cm 0.37-0.41 ft-lb/in not recorded 0.015 J/cm 0.17-0.39 ft-lb/in D570-98 Water Absorption 0.68% not recorded 0.61% *The data in this column was collected from DSM's internal testing. Technical Data:  Thermal / Electric Properties ProtoGen™ 18420 UV Postcure at HOC -2 ProtoGen™ 18420 UV & Thermal Postcure E831-05 C.T.E. -40°C-0°C (-40°F-32°F) 74.6-75.5 µm/m°C 35.3-37.1 µin/in°F 67.3-68.2 µm/m°C 37.4-37.9 µin/in°F E831-05 C.T.E. 0°C-50°C (32°F-122°F) 101.2-110.3 µm/m°C 48.8-51.7 µin/in°F 82.2-86.4 µm/m°C 45.7-48.0 µin/in°F E831-05 C.T.E. 50°C-100°C (122°F-212°F) 114.4-135.8 µm/m°C 91.3-95.5 µin/in°F 110.4-116 µm/m°C 61.3-64.4 µin/in°F E831-05 C.T.E. 100°C-150°C (212°F-302°F) 129.5-138.1 µm/m°C 83.3-92.9 µin/in°F 152.7-163.2 µm/m°C 84.8-90.7 µin/in°F D150-98 Dielectric Constant 60Hz 3.5-3.6 3.1-3.3 D150-98 Dielectric Constant 1KHz 3.4-3.5 3.1-3.2 D150-98 Dielectric Constant 1MHz 3.1-3.3 2.9-3.0 D149-97a Dielectric Strength 13.2-14.2 kV/mm 334-359 V/mil 13.8-14.1 kV/mm 350-357 V/mil E1545-00 Tg 57-59°C 135-1138°F 78-96°C 172-205°F D648 HDT @0.46 MPa (66 psi) 53-56°C 127-133°F 93-98°C 199-208°F D648 HDT @1.81 MPa (264 psi) 46-47°C 114-116°F 74-78°C 166-173°F

Seller makes no representation, express or implied, including the merchantability or fitness to a particular purpose.  No statements herein are to be construed as inducements to infringe any relative patent.  Under no circumstances shall seller be liable for incidental, consequential or indirect damage for alleged negligence, breach of warranty, strict liability, tort, or contract arising in connection with the product(s).  Buyer's sole remedy and seller's sole liability for any claims shall be buyer's purchase price.  Data and results are based on controlled or lab work and must be confirmed by buyer by testing for its intended conditions of use.  The product(s) has not been tested for, and is therefore not recommended for, uses for which prolonged contact with mucous membranes, abraded skin or blood is intended or for uses for which implantation within the human body is intended.

Copyright © 2011 - Rapid Prototype Company.     All rights reserved.      All trademarks and logos shown are the property of their respective owners.

4141 N. Atlantic Boulevard, Auburn Hills, Michigan 48326 Phone:  (248) 391-6600     Fax:  (248) 393-8430     E-mail:  rapid@rpparts.com