Prusament PC Blend
Looks like Prusa has started making a polycarbonate blend. I won't be ordering anytime soon, but I look forward to hearing from others.
Hoping some of our more knowledgeable members might give it a shot and report back here.
https://blog.prusaprinters.org/prusament-pc-blend-our-new-filament-for-highly-durable-3d-prints/
RE: Prusament PC Blend
Would be interesting to hear, if the Prusament PC also has a small lifetime like other PC filaments.
The UV resistance of this stuff is horrible.
RE: Prusament PC Blend
Would be interesting to hear, if the Prusament PC also has a small lifetime like other PC filaments.
The UV resistance of this stuff is horrible.
What do you mean by small lifetime?
Has anybody tried the PC Blend yet?
RE: Prusament PC Blend
Pure polycarbonate without UV stabilizers added is not suitable for use outside as it yellows and becomes brittle, so it depends whether the filament has these added during manufacture, else it can be coated after printing with a UV stabilisation film.
For indoor use, there should be no problems, it's only when exposed to harsh environmental conditions.
https://onlinelibrary.wiley.com/doi/abs/10.1002/pen.760250905
Abstract
Polycarbonate (PC), one of the leading engineering plastics, suffers from deterioration under harsh environmental conditions. It is sensitive to the effects of light (UV) radiation, to thermal degradation, and to the attack of hot water, due to hydrolysis. By exposure of various commercial PC grades—at various molecular weights and stabilization—to either natural or accelerated conditions, a maximum lifetime of three years was predicted for the best‐behaving grades. The criterion for failure was mainly based on loss of ductility in tensile tests, as well as loss of optical clarity and chain scission. Hot water has a significant effect on the performance of PC samples, and this is considered to be its greatest weakness. Degradation after exposure at various temperatures (without UV or humidity) leads to estimation of a temperature‐endurance index, that may serve as a practical limiting criterion for polymer life expectancy.
Normal people believe that if it ain’t broke, don’t fix it. Engineers believe that if it ain’t broke, it doesn’t have enough features yet.
RE: Prusament PC Blend
I would be curious to see if it beats Polymaker PC Max, which is very nice on the MK3.
RE: Prusament PC Blend
I would also be interested in a comparison with Polymaker PolyMax PC, the TDS is a great way to check the difference but the PC blend impact strength data is a bit strange. The notched data is much lower than the notched data from Polymaker but the unotched data are so much higher (Polymaker doesnt have unotched data)