Tough 1500 V2 | Materials | Lucent Additive

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Tough 1500 V2 Overview

Tough 1500 V2 is a resilient engineering resin designed to balance strength, stiffness, ductility, and impact resistance. Its post-cured mechanical response is comparable to polypropylene for functional prototypes, compliant mechanisms, rugged enclosures, jigs, fixtures, and selected end-use components. Published values should be verified for the intended geometry and service environment.

Design Advantages

Post-cured tensile strength of 34 MPa with 155% elongation at break
Post-cured flexural modulus of 1,370 MPa for a useful balance of stiffness and compliance
High unnotched impact performance and documented fracture-toughness data
Snap-fit, latch, flexure, damper, and self-tapping screw-boss applications

Application Fit

Rugged housings and enclosures with snap fits or screw bosses
Impact-resistant manufacturing jigs and fixtures
Compliant mechanisms including latches, flexures, and dampers
Functional prototypes requiring polypropylene-like toughness and resilience

Material Specifications

Item	Published Value
Material family	Tough engineering photopolymer
Published hardness	Shore 76D, post-cured
Bulk density	1.12 g/mL, post-cured
Ultimate tensile strength	34 MPa, post-cured
Elongation at break	155%, post-cured
Heat deflection temperature	66 °C at 0.45 MPa, post-cured

Material Properties

Mechanical Properties

Property	Green	Post-Cured	Method
Ultimate tensile strength	30 MPa	34 MPa	ASTM D638-14
Tensile modulus	1,250 MPa	1,460 MPa	ASTM D638-14
Tensile strength at yield	30 MPa	34 MPa	ASTM D638-14
Elongation at yield	5.6%	6.1%	ASTM D638-14
Elongation at break	210%	155%	ASTM D638-14
Flexural strength	26 MPa	41 MPa	ASTM D790-17
Flexural modulus	900 MPa	1,370 MPa	ASTM D790-17
Notched Izod	45 J/m	42 J/m	ASTM D256-10
Unnotched Izod	1,080 J/m	910 J/m	ASTM D4812-11
Notched Charpy	8.9 kJ/m²	7.5 kJ/m²	ISO 179-1
Unnotched Charpy	63 kJ/m²	57 kJ/m²	ISO 179-1
Fracture toughness Kmax	1.7 MPa·m^1/2	1.7 MPa·m^1/2	ASTM D5045-14
Work of fracture	1,090 J/m²	1,011 J/m²	ASTM D5045-14

Thermal Properties

Property	Green	Post-Cured	Method
HDT at 1.8 MPa	42 °C	53 °C	ASTM D648-16
HDT at 0.45 MPa	54 °C	66 °C	ASTM D648-16
Thermal expansion, 0 to 150 °C	116 µm/m/°C	99 µm/m/°C	ASTM E831-19
Flammability	Not tested	UL 94 HB	UL 94

Post-Cured Electrical and General Properties

Property	Published Value	Method
Dielectric strength	23.4 kV/mm	ASTM D149-20
Dielectric constant	4.5 at 50 Hz; 3.9 at 1 kHz	ASTM D150
Dissipation factor	0.018 at 50 Hz; 0.013 at 1 kHz	ASTM D150
Volume resistivity	2.91 x 10¹⁵ Ω·cm	ASTM D257-14
Shore hardness	76D	ASTM D2240

Skin Contact Biocompatibility Endpoints

Published testing reports the material as not cytotoxic under ISO 10993-5 and not an irritant or sensitizer under ISO 10993-10. These endpoints do not by themselves establish finished-device compliance

Chemical Compatibility

Fluid	24 H Weight Gain
Acetic acid, 5%	0.22%
Acetone	29.64%
Isopropyl alcohol	6.54%
Bleach, about 5% NaOCl	-0.05%
Butyl acetate	41.35%
Diesel fuel	0.04%
Diethylene glycol monomethyl ether	5.71%
Hydraulic oil	0.04%
Skydrol 5	2.41%
Hydrogen peroxide, 3%	0.31%
Isooctane, gasoline analogue	42.92%
Mineral oil, light	0.02%
Mineral oil, heavy	0.04%
Salt water, 3.5% NaCl	0.24%
Sodium hydroxide, 0.025% pH 10	0.17%
Water	0.21%
Xylene	72.57%
Concentrated hydrochloric acid	2.15%
TPM	5.90%

Design and Qualification Notes

Chemical immersion can change mass, tensile modulus, strength, and elongation; qualify the intended fluid, concentration, duration, and temperature. Published evaluations also include heat aging at 50 °C, indoor xenon-arc exposure, accelerated outdoor weathering, and flexural creep at 22 °C under 4 MPa. DMA data report a glass transition at 109.6 °C and a storage-modulus inflection at 60.8 °C; these values do not replace load-specific temperature qualification.

Published Data and Qualification

The values in this sheet are based on published green and post-cured specimen data and are provided for design reference and material comparison. Lucent Additive has not independently generated every published value. Properties can vary with geometry, orientation, process settings, post-curing, temperature, and exposure history. Validate final-part performance using the intended production process and service environment.