Acrylic plexiglass and polycarbonate sheets are both strong and durable plastic sheets with top-of-the-line visual possibilities. This product offers sign manufacturers and designers an appearance which is black in daylight (with no back lighting) and translucent white at night, when back lit. It includes visible light as well as ultraviolet and infrared light (Graph 1). The proprietary diffuser technology eliminates visible hot spots from pinpoint LED lights in typical flat and formed sign applications. The materials most commonly used for lighting applications are acrylic and polycarbonate. Light Diffusion (LD) - Light diffusion sheet is a polycarbonate sheeting designed with an advanced light diffusion technology that provides excellent light uniformity without sacrificing light transmission. This ensures excellent clarity, weatherability and high strength. Features include superior impact resistance, excellent heat retention, an incredible 86% light transmission and an industry leading 30 year warranty! Cast Acrylic Sheet Acrylic Sheet or General Purpose Impact Modified Cast Sheet Sanitary Ware Acrylic Sheet LMS (Light Management Solution) Magic Color Acrylic Sheet LED Block Acrylic Diffusion Extruded Products ABS/HI.PS Sheet PP Profile HD & LDPE.Net PMMA & PS Pattern PVC Board This tech brief lists two kinds of reflectance values that have been obtained using two different test methods. However, some light is reflected at both surfaces. Between 395 and 1000 nm, all thicknesses transmit 92%. Otherwise, the sign will look gray during the day when it isn’t illuminated from behind. UV-C radiation is absorbed in the ozone layer and never reaches the earth’s surface. We are working hard to serve our customers while keeping our team safe and healthy. A special combination of color and texture provides this versatility without any change to the physical, chemical, and thermal properties, which are characteristic of ACRYLITE® cast sheet. Always evaluate the translucent white colors using samples that are the same thickness as the sheet that will be used in the final application. 0.118” (3.0 mm) 92%. acrylic sheet is a crystal clear (with a transparency equal to optical glass), lightweight material having outstanding weatherability, high impact resistance, ... transmittance,diffusion,and lamp hiding power.Light transmission also varies with the thickness of the sheet. We carry a large selection of American-made Tamco® industrial strength tanks. Color Number Chart ACRYLITE@ LED (Resist SC.) As we explained in a previous blog post, we would typically expect the light transmission of 0.118" one side hard-coated Polycarbonate to be in the range of 90% [with 5.1% reflectance on the uncoated side, 4% reflectance on the coated side and a little internal loss of light transmission due to the internal structure of the Polycarbonate itself]. This is because colorless acrylic sheet transmits visible light uniformly throughout the entire visible light spectrum. The sum of the three factor is always 1. It combines superb light transmission with effective radiation protection. Fluorescent lamps, mercury vapor lamps, germicidal lamps and welding arcs produce significant ultraviolet radiation. Please note that additional wavelength ranges and other plastics can be viewed below. ACRYLITE® Cast and Extruded Light Transmission and Reflectance. As the temperature of the energy source decreases, radiation is emitted at longer wavelengths. Ultimately, the color of the sheet results from the combination of transmitted and reflected light that the human eye receives from the sheet. As you can see from the comparison of the transmission and reflectance values of various 3 mm white colors as listed in Tables A, B, C and D, light reflectance increases as light transmission decreases. Reflectance data is shown in Table C and D. When ACRYLITE® cast or premium sheet is used for a non-back-lit sign panel, a nearly opaque white such ACRYLITE® premium sheet color WT030 GT having a light reflectance value of 91% will provide good contrast for painted or fabricated letters that may appear on the sign. Visible hot spots and luminance fluctuations are eliminated without affecting the light transmission properties. Includes anti … It is available in six different lead equivalencies and thicknesses (see chart below). X-rays and gamma rays are characterized by wavelengths shorter than those in the ultraviolet spectrum, thus they are not included in Graph 2. Manufacturers publish the spectrophotometric distribution curves of each type. When a backlit sign must be as effective during the day as at night, a compromise is in order. Therefore, it is very important to evaluate colors under the intended end use conditions. It’s a unique, versatile, transparent plastic that contains 30% lead by weight. Shown below in Graph 5 are the transmission curves for several amber colors having good UV absorption characteristics. First, like polycarbonate, acrylic has very high transmissivity (it allows for the passage of light). Alternately, back lighting using an edge mounted light source can also be accomplished by employing a sheet printed or painted with a white light diffusing pattern on one surface. Amber colored sheet is frequently used to filter UV light in welding, laser cutting, and UV curing operations. This paper … Large sheets may need to be illuminated from two or all four edges. Light transmission of Altuglas ®: 92%; Light transmission of glass: 90%; Light transmission of polycarbonate: 84-89%; Altuglas ® acrylic sheet and block offer a wide range of colors and surface effects to provide optimum solutions to every requirement. It is used in picture frames and shadow boxes to protect photos, posters, and other valuables from damaging ultraviolet rays. These Thermo Scientific™ Nalgene™ bottles are lightweight versions of lab-quality bottles and can perform light-duty, general purpose work. ACRYLITE® Alltop‘s patented no drip coating is applied on every surface, including inside the flutes. Limited Time Sale Easy Return. Examples of other types of electromagnetic radiation are ultraviolet light, x-rays, radio waves, and infrared light (Graph 1). and get all the latest news, trends and offers straight to your inbox. In addition, the light transmission of almost every translucent white color will decrease with an increase in thickness. Acrylics have outstanding resistance to long-term exposure to sunlight and weathering. Colorless ACRYLITE® cast and premium sheet have very small amounts of light transmission below 345 nm. The transmitted or reflected radiation can be regular (1), scattered (2) or completely diffuse (3). Tamco® now offers shields, sneeze guards, table dividers, countertop shields, and office partitions, all made in the USA. PET Bottles that meet stringent packaging demands. The very low light absorption characteristic of ACRYLITE® cast and premium sheet makes it perfect for light piping applications, such as engraved signs, inspection lights, instrument dials and other similar items. As you can see from the chart, both polycarbonate and acrylic are capable of delivering a high amount of light transmission (80% to 90% is considered ideal for greenhouses), but the real differentiator is impact resistance. See Table E below and Table F on to the right for a sampling of standard colors. I hope this color chart will help to make color mixing easier for you. The intensity of the solar radiation that penetrates the atmosphere and reaches the earth varies considerably, depending on the altitude, ozone levels, concentration of water vapor, carbon monoxide, dust, and other types of contamination. Acrylic sheet is the best known and most widely used plastic. Light that falls on a surface can either be absorbed, transmitted or reflected, depending on the properties of the material involved. ACRYLITE® cast and premium sheet are opaque to long wave radiation above 2200 nm. D1003-13 Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics hazemeters~ luminous transmittance~ light scattering~ haze~ transparent plastics~ Above values are based on ASTM Test E-308, using CIE illuminant C. *The transmission of 049-3 is the same for all thickness. They shield approximately 1/100 to 1/400 as much as lead of the same thickness. For percentages of light transmission, OPTIX LD light diffusing acrylic sheet provides superior diffusion properties that allow for greater sign design flexibility and slim profile channel (CAN) letters, all with fantastic impact resistance and weatherability. Impact and weather resistant, crystal clear or colored, Plaskolite OPTIX is a versatile, general-purpose acrylic sheet ideal for almost any application. White translucent cast and extruded ACRYLITE® sheet are available in different densities to provide a variety of options for light transmission, diffusion, lamp hiding power and surface brightness. It’s important that the sheet’s surfaces be highly polished and free of scratches to assure optimum reflection and prevent light scattering. To prevent excessive light loss at curves, the radius of curvature should not be less than three times the sheet’s thickness. Due to high demand, you may experience longer than normal response times when calling or emailing. Transmission curves of plexiglass (PMMA) and optical grease C. Joram 26 October 2009 This note documents transmission measurements of material samples frequently used in the PH/DT scintillator lab. This is accomplished by adjusting the colorant concentration according to sheet thickness. warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with For instance, when light passes through a 1/4” thick sheet it will pass through twice as much pigment as when it passes through an 1/8” thick sheet. Whether you choose transparent, translucent, or opaque colors, there is no limit to what you can do with this versatile product. Colored Acrylic sheet is one of our most popular products. For back-lighting applications such as signs or light boxes, white sheet is often used between the light source and the sign face to improve light diffusion. For more efficient back lighting use an edge mounted light source, together with ACRYLITE® LED (EndLighten) acrylic sheet for edge lighting. Therefore, the overall light transmission will be approximately 92%. Acrylic sheet can be formulated in thousands of different colors and shades. This sheet contains tiny beads that help diffuse piped light to its surface. light transmission for such a medium is 92.5%.Actual measurement shows that colorless Plexiglas® sheet in thicknesses of up to 6 mm (0.236") transmits 92% of the light striking it at the perpendicular: this fraction represents virtually all the light that can be transmitted by a … Acrylic sheet with special surface and special additives, designed to maintain maximum light transmission while diffusing as much light as possible. Light transmission depends on the reflectance at both surfaces of the material and the absorption of light into the material. Colorless ACRYLITE® cast and premium does not shield x-rays or gamma rays very effectively. Color Overall % of Light Description Appearance Transmitted Opaque. Package, store & transport. Long wave radiation is emitted by the mass, such as soil or concrete, inside a greenhouse. 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