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Engineering Quality Resins for SLA / LCD 3D Printing

 

Resin 3D printers have a much higher resolution than most other 3D printing technologies, especially the desktop FDM printers. The downside is that most of the standard resins are brittle. There are several companies developing much stronger "open" (can be used with most printers) resins that rival the strength of FDM printable materials.

 

Siraya Blu

 

This material is very strong, but fractures under bending loads rather than deforming, especially in my application which was for long resin mold inserts

 

Where to Buy

User Guide

 

Siraya Tenacious

 

A flexible resin that can be used on its own, or mixed with other resins to adjust the desired effects.

Recommended to mix 75% Blu and 25% Tenacious to create a resin that is tough but has enough flexibility for snaps and not brittle. 

 

Where to Buy

User Guide

 

Liqcreate Strong X

 

Haven't tested this yet. Has the highest tensile strength I've seen, but at only 8% elongation, it will fracture violently when it does reach yield.

 

Where to Buy

User Guide

 

eSUN Hard and Tough

 

Haven't tested this one yet.

 

Viscosity  200-300 Mpa

Density 1.10-1.15 g/cm3

Tensile Strength 55-60 MPa

Elogation at Break 30-50%

Flexural Strength  70-80 MPa

Flexural Modulus  1300-1400 MPa

Hardness >81D

IZOD Impact Strengh 67-100 J/m 

 

Printing parameter is the same as other eSUN resins:

Layer height 0.05mm, bottom layers 4, bottom exposure time 40 seconds, normal exposure time 7 seconds.

 

Where to Buy

 

 

 

Liqcreate Clear Impact

 

I use this to make light pipes. This is an optically clear resin that also has good physical properties, like impact strength.

 

Where to Buy

User Guide

 

Siraya Sculpt

 

Siraya Sculpt is not a tough resin, but it is a high temp resistant resin.

Mixed 50/50 with Siraya Tenacious creates a high res, tough resin, but probably loses some of its heat resistance. Example

 

Where to Buy

User Guide

 

 

 

 

 

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