Somos WeatherX and Loctite 3D 3955 FST 3D Printing Materials

Two high-grade engineering materials, Somos WeatherX 100 and Loctite 3D 3955 FST are pushing the boundaries of 3D printing.

Somos WeatherX 100 is an environmentally durable DLP photopolymer that was developed for 3D printing functional end-use parts. It produces parts repeatedly and predictably, with the right set of performance properties that last a product's lifetime. Tested against the most stringent SAE industry specifications, Somos WeatherX 100 demonstrates the optimized balance of weather and chemical resistance and dimensional stability, and robust material behavior in printing and post-processing.

Somos WeatherX 100 is the first DLP material that comes with reliable testing data on material weatherability, UV-testing, durability, and dimensional accuracy using SAE industry standards similar to those used for thermoplastics. These tests show that Somos WeatherX 100 retains its properties better than other commercial DLP materials positioned as durable.

Loctite 3D 3955 FST caters to industries with stringent safety requirements, offering flame resistance without compromising strength. It's a high-performance, high-modulus product with excellent flexural and tensile physical properties and outstanding flame retardance. Suitable for aerospace and transportation components that require flame resistance, high HDT, or chemical resistance.

Somos WeatherX 100 Features:

  • Lasting mechanical and functional properties & dimension stability, even compared to UV-stabilized thermoplastics
  • Optimal balance of temperature resistance and toughness
  • UV, chemical, and temperature resistance
  • Good print resolution, suitable for challenging geometries
  • Easy and fast post-processing
  • Black color
  • Isotropic


  • Parts and components exposed to UV and/or humid environments and moisture—interior or exterior
  • Transportation/outdoor vehicles: tractors, forklifts, heavy trucks, motorcycles, etc.
  • Industrial equipment: sprinklers, instrumentation, filters, etc.
  • Consumer goods: sports & leisure: backpack clips, binding straps, etc

Loctite 3D 3955 FST Features:

  • Extremely high HDT (545°F (285°C)) delivers negligible deformation in harsh environments
  • Printable at 149°F (65°C)
  • High modulus
  • Passes flammability 2×10 second vertical burn and FST (AITM2-0002, AITM2-0007, AITM3-0005)Halogen-free
  • Color: Black


  • HVAC components, clips, and plugs for control systems
  • Connectors, clamps, ducts, and brackets

Somos WeatherX 100 Spec Sheet

LOCTITE 3D 3955 FST Spec Sheet


Eden Prairie, MN
(800) 801-6491

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