White nylon plastic with a matte finish and slight grainy feel.
About this Product
I'm afraid Shapeways have recently increased their prices on WSF models.
Recent communications with customers suggest the White-Strong-Flexible material is more than suitable, but does need a primer-filler (Auto-shop, 'Duplicolour') paint to smooth out the 'powdery' finish. My thanks to Bill Guegold for pictures of the model ('straight out the box') of his HO version of this model. The Bulkmatic decals are prototypes.
Look out for my other trailer models, also available S-scale.