Lack of chemical resistance in face protection parts made from polycarbonate (PC) can lead to crazing or whitening, which can impair vision and create a safety hazard.
Tenite™ cellulosics and Eastman Tritan™ copolyester combine impact strength and chemical resistance, making them the ideal choices of material to develop versatile products for a broad range of industries.
In controlled tests, materials were exposed to 13 common chemicals and evaluated for changes in impact strength, flex modulus, haze, and mass.
- Both Tenite cellulosic acetate propionate (CAP) and Tritan matched or outperformed PC in 12 of the 13 exposures.
- The most dramatic difference involved exposure to a common cleanser additive, ammonium hydroxide, with which Tritan showed “little change” while PC showed “catastrophic change."
Don’t get blindsided by the increasing importance of chemical resistance for face and eye protection products. Enjoy the clear advantage of Tenite and Tritan.
Eastman Tritan™ copolyester and Tenite™ cellulosics let you produce clear face and eye protection products that meet the critical impact resistance standard. Face shields made from both Tenite and Tritan surpass impact requirements by ANSI 87.1+.
Injection molding opportunities
Poor flow characteristics of polycarbonate (PC) have forced manufacturers to produce face shields thicker and heavier than what is demanded by optimized designs. Both Eastman Tritan™ copolyester and Tenite™ cellulosics are excellent options for injection molding.
Tenite CAP is created to optimize injection molding efficiency.
- Superior flow characteristics allow molding shields with thin walls (1-mm thickness) and long flow lengths.
- CAP maintains excellent clarity and optical properties while meeting the ANSI 87.1+ standard for eye protection.
The benefits of Tenite CAP not only make processing more efficient but also reduce weight of the shields for greater wearer comfort.
Die-cut extruded sheet opportunities
Both Eastman Tritan™ copolyester and Tenite™ cellulosics are excellent options for die-cut extruded sheet—each offering different advantages over PC.
Tritan can deliver greater durability as well as fabrication advantages, including die punching, hot or cold bending, and drilling without significant microcracking.