Hey,
Im looking forward to 3D print my architecture project (scale 1:500) in clean & white.
But I cant see the real difference of the materials on the website…
I am reading that there is ‘‘Polyamide (SLS)’’ in white and polished white and there is
‘‘Polyamide Priority (SLS)’’ in white and polished white too. Can I get some pictures/ examples of them please? Would help me a lot deciding the right material 
Kind Regards,
Jon
“Priority” is just that - same (Nylon) material, just the order is processed and shipped faster. The print is a clean white but has a slightly rough and porous surface. Over time (months to years depending on temperature and sunlight) it will develop an ivory yellow tinge just like white nylon items do, e.g. light switch covers in older homes. The material can be painted with acrylic or enamel paints.
There are material sample kits available - I suspect your alternative options would be the white ABS or resin - probably more expensive and less sturdy than the Nylon. (I do not have any experience with the ABS or with the particular types of resin available here.)