PolyMide PA12-CF is a brand-new engineering filament offering high stability in both printing and application, delivering predictable mechanical properties regardless of the operating environment, lower  moisture absorption than PA6, paired with Polymakers Warp-Free and Fiber Adhesion technologies provide an easy to print filament with extremely desirable properties.  Please note this material is abrasive, a wear resistant nozzle is advised. PolyMide PA12-CF is a brand-new engineering filament offering high stability in both printing and application, delivering predictable mechanical properties regardless of the operating environment. PolyMide PA12-CF achieves this through its base polymer, nylon 12, which displays greater moisture stability when compared to common nylon 6 filaments. This means that PolyMide PA12-CF printed parts display minimal change in mechanical properties from the dry state to the wet state, therefore, more predictable mechanical properties in final printed parts. PA12-CF features 10% chopped carbon fibers which add strength and stiffness while also lowering the coefficient of thermal expansion Some interesting information! Water molecules are attracted from the surrounding air to the polyamide matrix, forming a polar bond onto the polymer chain. This water molecule acts as a plasticizer inside the nylon and while it decreases tensile strength and stiffness, it increases toughness and impact resistance. Unless your 3D printed parts operate in particularly dry environments or are post processed with a moisture barrier, its generally assumed that all nylon printed parts will end up in their wet state properties in every-day use. In many applications the wet state characteristics are more desirable and its common on many nylon injection moulding lines to eject moulded parts straight into a bath of water to condition them to wet state properties before leaving the factory. 3D printing filaments must be dry, otherwise, any moisture which is inside the filament will boil inside the hot end and rupture out of the side of the extruded plastic, this greatly decreases the mechanical properties, surface finish, layer bonding and produces some other undesirable printing characteristics such as stringing and oozing. Once the part is printed however, the nylon will absorb moisture from the air naturally and reach an equilibrium inside the part. For PA12-CF, the moisture equilibrium is roughly 1.5% by weight with other brand nylon filaments absorbing up to 5% and over, this has a more drastic effect on the final properties of the part and a noticeable difference in the performance from dry to wet states. PolyMide PA12 CF features Polymaker’s Warp-Free technology and Fiber Adhesion technology: Warp-Free technology enables the production of Nylon-based filaments that can be 3D printed with excellent dimensional stability and near-zero warpage. This is achieved by the fine control of microstructure and crystallisation behaviour of Nylon, which enables the material to fully release the internal stress before solidification. Fibre Adhesion technology improves the layer adhesion of fibre reinforced materials, by optimising the surface chemistry of the fibers to achieve better dispersion and bonding to the matrix. This results in better strength along the Z-axis and reduced mechanical anisotropy. Working in collaboration with a German manufacturer of high-performance polymers, and are designed to contain specific properties for use in a variety of industries, like automotive, aerospace and electronics.