3301PA Nylon (often referred to as White Nylon 3301PA ) is an industrial-grade thermoplastic powder specifically engineered for Selective Laser Sintering (SLS)
: Excellent impact resistance ensures parts don't fracture easily under stress.
Nylon is hygroscopic (it absorbs water), which causes it to swell and lose dimensional accuracy. The fillers in 3301PA displace the hydrophilic nylon polymer, thereby reducing the rate of moisture absorption and improving stability in humid or wet environments.
This combination means parts made from 3301PA can withstand repeated stress, sudden shocks, and cyclic loading. It is not brittle like resin or basic PLA.