What is a Optical Technician? Optical technicians, also known as ophthalmic laboratory technicians, create eyeglasses and contact lenses as well as lenses for binoculars and other optical devices. They fill prescriptions from ophthalmologists and optometrists, ensuring that the lenses refract light at the proper angle to permit optimal vision.
Needled Silica Insulation. InsulBattÃ¤ 1800 High Temperature needled silica insulation is fabricated from high quality Silica that will not burn and will withstand continuous exposure to temperatures of 1800Â°F / 982Â°C. This material resists most acids and alkalis and is unaffected by most bleaches and solvents. It is highly flexible and conformable.
ULTEMÂ® GRADES UltemÂ® 1000 (unfilled) Unfilled UltemÂ® excels in hot air and water environments. It's hydrolytically stable -- it retains 85% of tensile strength after 10,000 hour boiling water immersion and 100% of tensile strength after 2,000 steam autoclave cycles at 270Â°F.It is also UV and gamma radiation resistant.ENERAL PROPERTIES UltemÂ® PolyEtherImide (PEI) is an amber transparent high performance polymer which combines high strength and rigidity at elevated temperatures with long term heat resistance.