Introducing the First Water-Based Liquid EPDM
Lion Elastomers has developed a unique liquid ethylene propylene diene terpolymer (EPDM) designed specifically for water-based applications, including coatings, inks, adhesives, sealants, and caulks. Trilene® 65D is an EPDM dispersion with cross-linking functionality, good mechanical strength, and compatibility with various latex resins. EPDM has special properties derived from the saturated backbone structure and side-group unsaturation to enable cross-linking.
Trilene® 65D EPDM from Lion Elastomers
- EPDM elastomer (ethylene propylene diene terpolymer)
- 50/50 ethylene/propylene ratio (45% ethylene by weight)
- Dispersed in water
- 55% solids by weight
- Adhesion and tackifying properties
Trilene® 65D EPDM Coating Applications
- Industrial Coatings
- Primary binder or modifier for roofing, industrial maintenance, and institutional paints
- Adhesives and Sealants
- Binder or modifier in pressure-sensitive adhesives and industrial caulks
- Inks and Overprint Varnishes
- Modifier for laminating inks and overprint varnishes
When used in coating applications, Trilene® 65D EPDM imparts:
- Excellent UV, heat, oxidation, and chemical stability
- Good mechanical strength
- Enhanced durability
- Zero volatile organic content (VOC)
- Improved flexibility
- Hydrophobic with low surface energy
- Controllable viscosity at room temperature
- Stable mechanical properties
- Cross-linking capabilities with metal driers, peroxides, or UV light
- Low-moisture permeability
- Adhesion properties to a variety of surfaces
Physical Properties for Sample Coating Formulations using Trilene® 65D EPDM
| Property | Method | Result |
|---|---|---|
| VOC (lb/gal) | ASTM D3960 | 0.32 |
| Solids (wt%) | ASTM D3960 | 48 |
| Specific gravity | ASTM D1475 | 1.02 |
| Brookfield viscosity @ 25°C (cP) | ASTM D2196 | 4,800 |
| Dry to touch (hrs) | ASTM D1640 | (8–16) |
| Dry to handle (hrs) | ASTM D1640 | (16–24) |
| Impact strength (in-lb) | ASTM D2794 | >90 |
| Crosshatch adhesion (CRS) | ASTM D3359 | 5B |
| Pencil hardness (7 day) | ASTM D3363 | 3B |
Sample coatings formulation
| Raw Material | Function | Weight (grams) |
|---|---|---|
| Trilene® 65D | Binder | 350.23 |
| Ti-Pure™ R-706 | TiO2 pigment | 44.77 |
| Deionized water | Solvent | 68.53 |
| DISPERBYK® 2055 | Wetting and dispersing aid | 0.91 |
| SR350 | Monomer | 11.42 |
| Mineral spirits or VOC exempt solvent | Solvent | 19.03 |
| Ricon® 156 | Homopolymer resin | 3.81 |
| 10% Cobalt Hydro-Cure® IV | Primary drier | 0.53 |
| 12% Zirconium Hydro-Cem | Secondary drier | 0.76 |
Formulation Instructions
- Mix the deionized water, DISPERBYK® 2055, and Ti-Pure™ R-706 until well dispersed.
- Mix the mineral spirits, Ricon® 156, and SR350 until homogeneous.
- Add Trilene® 65D to the resin mixture.
- Combine the dispersed Ti-Pure™ and resin mixtures.
- Add 10% Cobalt Hydro-Cure® IV and 12% Zirconium Hydro-Cem last.
Formulation Notes
*a VOC-exempt solvent can be substituted for mineral spirits
† a peroxide like PEROXAN PIN can be added to make a 2K system and further accelerate cure time
‡ base formula is considered low VOC
Summary
Trilene® 65D EPDM offers desired properties for water-based coatings, adhesives, inks, caulks, and sealants. If you are interested in learning more or testing a sample, click to talk to an expert about how Trilene® 65D can work for your formulation.
