What is Lion Trilene®?
Lion Elastomers Trilene® is a family of low molecular weight liquid elastomeric polymers based on ethylene-propylene copolymers and ethylene-propylene-diene terpolymers. Trilene® is a nonpolar, noncrystalline, elastomeric material that allows tight molecular packing, which results in low permeability to gases and water vapor.
Why Trilene® For Conformal Coatings & Potting Compounds?
Within the interior of electronic devices like a printed circuit board (PCB), it is essential to have protection from moisture and possible chemical corrosion and changes in thermal temperature. Furthermore, Lion Elastomers EPDM exhibits outstanding hydrophobic capabilities and provides dielectric strength to PCB applications.
Trilene® provides a variety of functional properties and features that make it useful in electronics such as conformal coatings and potting applications such as excellent low-temperature flexibility, improved repairability, low viscosity, low moisture permeability, and superior chemical and weathering resistance. The conformal coating must not only be able to protect the electric circuit board from chemicals, corrosion, moisture, and extreme temperature fluctuations.
Liquid EPDM | EPDM Molecule | EPDM Dispersion |
Flexibility and Low Compression Set:
Trilene® offers outstanding flexibility at low temperatures due to its low molecular weight and viscosity, makeing it ideal for use on delicate electrical components, PCB, and compounds. Trilene® also features excellent mechanical strength, strains, and compression deformation resistance for an extended conformal coating lifetime.
Easier Removal and Repair:
Dielectric Strength:
Chemical Resistance:
Low Moisture Permeability:
Trilene® and liquid EPDM polymers are hydrophobic and ideal for waterproof coatings and electronic devices. They exhibit ultra-low moisture permeability up to 40 times compared to natural rubber, nitrile rubber, and silicone compounds. The low moisture absorption makes the Trilene® polymers less susceptible to electrical property losses making them ideal for high humidity environments and applications.
Liquid EPDM-based films have very low moisture vapor transmission rates compared with other materials. MVTR is controlled through formulation where required.
Superior Stability, Adhesion, and Resistance:
Cure Time and Productivity:
Several Trilene® EPDM grades are available to allow the optimum selection of cure rate and aging resistance balance for each formulation:
| Grade Name | Product Form | E/P Ratio | Wt. % Diene (Type) | Molecular Weight | Viscosity |
|---|---|---|---|---|---|
| Trilene® 65 | Liquid Polymer | 50/50 | 10.0 (DCPD) | 47,000 | 177,000 |
| Trilene® 67 | Liquid Polymer | 46/54 | 9.5 (ENB) | 39,000 | 128,000 |
| Trilene® 77 | Liquid Polymer | 74/26 | 10.5 (ENB) | 27,000 | 102,000 |
| Trilene® 65D | Water Dispersion | 50/50 | 10.0 (DCPD) | 47,000 | 5,600 |
Can liquid EPDM polymers be used as additives to other polymers?
Yes, Trilene® liquid EPDM copolymers and terpolymers can modify the flow characteristics and improve the processing of high molecular weight elastomers, solvent-based coatings, thermoplastic elastomers, and general thermoplastics. Trilene® liquid EPDM dispersions are also ideal for use in waterborne coatings and low VOC formulations.