2

Polypropylene should be good, and relatively easy to print. Prinsco rate its resistance to NaOH as A-Excellent. Ultimaker provide a useful guide to the chemical resistance properties of 3D printing filaments.


2

PLA is a forgiving filament, you can even print such filament without a heated bed. Although there are differences in quality between brands, PLA shouldn't need a raft to be printed. Hatchbox filament is not considered as a low quality type of filament; it is economical and has been around since 2013. A raft is a structured platform that is specifically used ...


2

It is unlikely this is a filament material issue since many of us have used Hatchbox PLA without this issue. This is a first layer adhesion issue. Your bed may not be clean, or the bed may have had an adhesion layer you cleaned off. Your nozzle may be too high on the first layer. Your bed my not be level. Glue sticks can help adhesion. Glue sticks ...


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