Press release
August 22, 2012

PLEXIGLAS® LED for back-lit applications and color changing: different color effect in the day and at night

Sign Africa 2012, Johannesburg, Evonik at hall 2, level 2, booth no. N11-20

  • Unusual solutions for day and night 
  • Innovative lighting concept for signage 

PLEXIGLAS® LED for color changing is a highly specialized material for illuminated signs and lighting design. Its unusual feature is that it offers different color effects during the day and at night. In the daytime, an advertising slogan looks just like a standard colored PLEXIGLAS® sheet, e.g. in a noble shade of black or blue. But when the lighting is switched on at night, the slogan is displayed in a bright white or almost any color determined by the light source. This extraordinary advertising effect places signs in their best light and grabs attention.

Other amazing effects can also be obtained ‒ concealed information can be revealed when the light source is turned on, or further visual effects can be created with differently colored light sources. There are virtually no bounds to the creative options. Fascinating lighting effects can be produced especially with RGB-LEDs.

PLEXIGLAS® LED for color changing is available in the color combinations Black/White, Grey/White and Blue/White. The first color is the shade that appears in incident light. The second color is the one that appears in transmitted light, which can be changed by a colored light source. Further color combinations are possible. The sheets are 3mm thick and naturally offer the proven excellent properties of that classic among plastics, PLEXIGLAS®: very good resistance to UV light and weathering, colorfastness, ease of forming and high surface hardness.

PLEXIGLAS® LED for color changing makes for attractive illuminated signs during the day and at night, and is one of the highlights at the trade show, incorporated into lighting design with LEDs as the light source.

Evonik Industries is a worldwide manufacturer of PMMA products sold under the PLEXIGLAS® trademark on the European, Asian, African and Australian continents and under the trademark ACRYLITE® in the Americas.

Company information

Evonik, the creative industrial group from Germany, is one of the world leaders in specialty chemicals. Its activities focus on the key megatrends health, nutrition, resource efficiency and globalization. Profitable growth and a sustained increase in the value of the company form the heart of Evonik’s corporate strategy. Evonik benefits specifically from its innovative prowess and integrated technology platforms.

Evonik is active in over 100 countries around the world. In fiscal 2011 more than 33,000 employees generated sales of around €14.5 billion and an operating profit (adjusted EBITDA) of about €2.8 billion.


In so far as forecasts or expectations are expressed in this press release or where our statements concern the future, these forecasts, expectations or statements may involve known or unknown risks and uncertainties. Actual results or developments may vary, depending on changes in the operating environment. Neither Evonik Industries AG nor its group companies assume an obligation to update the forecasts, expectations or statements contained in this release.