Gratkit ABS like vs ABS like B

Gotrek

I accidently bought a different resin then usual which is Labeled ABS Like B It has a higher layer cure time but what are the other differences I can't find it on your website. It seems to more dimensionally accurate once calibrated but not as much tensile strength is that the main difference? Is it higher Butadiene content? I don't have any problems with it I'm more curious then anything as I can't find any details online.

william

Gotrek
Hello, the resin you mentioned appears to be a new model from GratKit’s "ABS-Like" series. This resin offers superior precision, though, as you noted, there is some trade-off in terms of mechanical properties.

Reference
Technical Parameters after Molding:

Maximum force (kgf): 147.2 ± 10%
Tensile strength (MPa): 34.7 ± 10%
Deformation at maximum force (mm): 6.97 ± 10%
Elongation at yield point (%): 5.24 ± 10%
Elongation at break (%): 19.54 ± 10%
Maximum bending strength (MPa): 39.47 ± 10%
Flexural modulus (MPa): 1156.21 ± 10%
Hardness (Shore D): 80–85
Impact strength (J/m): 56.37 ± 10%
Tensile modulus: 474.26 ± 10%

william

Gotrek

Butadiene was indeed a common ingredient that we used in our early manufacturing processes. However, we no longer use it; instead, we utilize acrylate-based components. This change was primarily driven by EU compliance regulations and associated requirements.

The ingredients are as follows:
Ethoxylated trimethylolpropane triacrylate CAS 28961-43-5
₄₀%

Epoxy acrylate resin EAD-100
CAS 55818-57-0
₄₀%

Cyclic trimethylolpropane formal acrylate
CAS 66492-51-1
₁₀%

2,4,6-Trimethylbenzoyl-bis(p-tolyl)phosphine oxide
CAS 270586-78-2
₅%