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Low-Emissivity Camouflage Coatings.

ADA310642

Publication Date	1996
Personal Author	Chesonis, K. G.; Harris, D.
Page Count	21
Abstract	The next generation of low-emissivity camouflage coatings will have signature modulating properties in the infrared (IR) bands without sacrificing the visual and near-IR properties and its chemical agent resistant coatings (CARC) nature. This report outlines the major problems facing the coatings chemists/formulators and the use of new instrumentation to define development and evaluation of coating surfaces by particle-size distribution and profile. There are four bands in the electromagnetic spectrum that enemy sensors can use to seek and detect Army tactical equipment. The current camouflage chemical agent resistant coatings (CARC) addresses two of these bands-the visual and near infrared (IR). The three-color woodland pattern and the desert tan match the visual effects of the background. In the near IR, the green color matches the sharp reflectance rise of chlorophyll present in all green foliage. The first camouflage coating to combine the very low gloss in the visual with the chlorophyll-tunnel requirements in the near IR appeared in the mid-1970 as MIL-E-52798 and was based on an oil-modified polyester polymer. In 1985, CARC became the standard camouflage coating for the Army as MIL-C46168. This coating is based on a two-component urethane-polyester polymer and unchanged requirements for visual gloss and IR reflectances. The next generation of low observable coatings requires new formulations that have low emissivity/absorption in the thermal region.
Keywords	Camouflage Chemical agents Protective coatings Optical coatings Bands(Strips) Particle size Detectors Resistance Formulations Army equipment Low level Instrumentation Visual perception Reflectance Reflectometers Infrared countermeasures Tactical warfare Hemispheres Near infrared radiation Green(Color) Foliage Electromagnetic spectra Emissivity Chemical attack(Degradation) Color vision Infrared suppressors Chlorophylls Low emissivity coatings Particle size distribution Hemispherical directional reflectometer
Source Agency	Non Paid ADAS
NTIS Subject Category	74I - Passive Defense Systems 74D - Chemical, Biological, & Radiological Warfare 71E - Coatings, Colorants, & Finishes 63C - Infrared & Ultraviolet Detection
Corporate Authors	Army Research Lab., Fort Belvoir, VA.
Document Type	Technical Report
Title Note	Progress rept. Oct 94-Sep 95.
NTIS Issue Number	199622

Low-Emissivity Camouflage Coatings.

Low-Emissivity Camouflage Coatings.
ADA310642

Publication Date	1996
Personal Author	Chesonis, K. G.; Harris, D.
Page Count	21
Abstract	The next generation of low-emissivity camouflage coatings will have signature modulating properties in the infrared (IR) bands without sacrificing the visual and near-IR properties and its chemical agent resistant coatings (CARC) nature. This report outlines the major problems facing the coatings chemists/formulators and the use of new instrumentation to define development and evaluation of coating surfaces by particle-size distribution and profile. There are four bands in the electromagnetic spectrum that enemy sensors can use to seek and detect Army tactical equipment. The current camouflage chemical agent resistant coatings (CARC) addresses two of these bands-the visual and near infrared (IR). The three-color woodland pattern and the desert tan match the visual effects of the background. In the near IR, the green color matches the sharp reflectance rise of chlorophyll present in all green foliage. The first camouflage coating to combine the very low gloss in the visual with the chlorophyll-tunnel requirements in the near IR appeared in the mid-1970 as MIL-E-52798 and was based on an oil-modified polyester polymer. In 1985, CARC became the standard camouflage coating for the Army as MIL-C46168. This coating is based on a two-component urethane-polyester polymer and unchanged requirements for visual gloss and IR reflectances. The next generation of low observable coatings requires new formulations that have low emissivity/absorption in the thermal region.
Keywords	Camouflage Chemical agents Protective coatings Optical coatings Bands(Strips) Particle size Detectors Resistance Formulations Army equipment Low level Instrumentation Visual perception Reflectance Reflectometers Infrared countermeasures Tactical warfare Hemispheres Near infrared radiation Green(Color) Foliage Electromagnetic spectra Emissivity Chemical attack(Degradation) Color vision Infrared suppressors Chlorophylls Low emissivity coatings Particle size distribution Hemispherical directional reflectometer
Source Agency	Non Paid ADAS
NTIS Subject Category	74I - Passive Defense Systems 74D - Chemical, Biological, & Radiological Warfare 71E - Coatings, Colorants, & Finishes 63C - Infrared & Ultraviolet Detection
Corporate Authors	Army Research Lab., Fort Belvoir, VA.
Document Type	Technical Report
Title Note	Progress rept. Oct 94-Sep 95.
NTIS Issue Number	199622