Microfoam Polyurethane
Microfoam is ideally suited to a variety of dry and liquid-dispensing applications, and it is particularly well suited for oils, silicone and oil-based inks. The unique properties of the extruded salt-leached polyurethane, polyethylene or polypropylene structures allow our chemists exact control over pore size, density, fluid composition, transfer and durometer. This yields a foam structure that delivers ideal ink release rates for proper coverage, clarity and print life. Microfoam offers superior durability and dimensional stability under a wide temperature range, making the foam well-suited for deployment in harsh or severe environments. Applications include ink rollers for lumber marking, ribbon reinking, price-marking and label guns, printing calculators and cash registers. We also produce specialty foams for dry applications including film and paper drive rollers, static dissipative rollers, and vibration and shock absorption structures.
Choosing the right foam for your application is an important decision. Contact our team at any time for assistance and consider the following Microfoam ideal performance factors. All factors are significantly impacted by operating environment, expected print life and imprint quality.
Temperature |
40° to 130° Fahrenheit |
Speeds |
Primarily intended for lower to medium peripheral speeds |
Contact |
Free-wheeling held by gravity, springs or adjusting screws with force of 3oz to 2lbs |
Bonding |
Rolls may be bonded to bushings or metal or plastic hubs |
Dust protection |
Rolls should be protected from excessive dust to avoid ink transfer interference |
Roll size |
3/8" to 4" diameter with no shrinkage during use |
Inks and fluids |
Porelon chemists can formulate Microfoam-matched inks in any color. A large variety of other fluids including lubricating oils, tracing fluids and others are also compatible with Microfoam. |
Hardness |
35 to 70 shore 00 durometer. Highly resistant to abrasion and extreme operating temperatures |
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