SLA, DLP & LCD 3Dresyns for otoplastics and hearing devices

SLA, DLP & LCD 3Dresyns OTO are resins designed for making durable hearing aid shells, ear molds, hearing protection and special headsets and are available in different durable finishes, from ultra hard and tough to flexible and soft.

Our 3Dresyns OTO comply with the Quality requirements for Class I, IIa & IIb of ISO13485:2016 for the manufacturing of medical devices: hearing aid shells and Otoplastics.


    • broad range of physical properties: from ultra hard and tough to soft and flexible grades
    • broad range of basic and special effect colors
    • widest color range in the market, including all existing colors (full color pallette)
    • select your RAL/NCS (full color guide/palette)
    • very high resolution 
    • dimensional stable “non deformable” grades
    • very low shrinkage
    • printable by most commercial and professional SLA, DLP & LCD 3D printers
    • increased durability of the resin tank
    • negligible potential risk of skin irritation of the final hearing aid user, caused usually by residual unreacted agressive monomers, as it might occur with other existing high irritating monomer based commercial products
    • compliant with the Quality requirements for Class I, IIa & IIb of ISO13485:2016
3Dresyns OTO