Description
These coatings are generally neutral in colour, and are also referred to Heat Control Glass. AGS’s ranges of Low E coatings provide energy conservation by reflecting majority of the sun’s radiant heat (long wave IR radiation) and selectively transmit the sun’s visible light (short wave radiation).
In hot climate countries, heat gain is a major problem, and selective Low E glass can reduce the heat gain. In the hot climate, greater amount of long wave IR radiation exist outdoor, the Low E coatings will help reduce heat gain by reflecting this heat back outside, without having to sacrifice too much light transmission. This phenomenon will help to reduce air-conditioning and lighting costs
AGS currently offers six types of Enviro-Shield Low E High Performance coating – Type loE a, LoE B, Loe C, LoE D, LoE Y and LoE Z coatings, with different levels of energy conservation and different levels of daylight transmission with minimal light reflectance out, and can be applied on clear or tinted glass substrates. Enviro-Shield Low E High Performance Type LoE A, LoE B, LoE C and LoE D glass cannot be used monolithically, and have to be fabricated into Enviro-Cool Double Glazed Units; or for better performance, Enviro-Shield Low E can be paired with Enviro-Shield Solar Reflective Glass into Enviro-Cool Double Glazed Units to provide better energy efficiency.
Product Standards
AGS’s well experienced production management techniques and its many in-house quality control tests (includes the use of spectrometer, colorimeter, abrasive taper tester, stress meter etc) ensures AGS Enviro-Shield Solar Reflective and Enviro-Shield Low E High Performance Glass leaves our factory with the highest quality standards
Inspection Guidelines:
Pinholes: Glass is to be inspected from a distance of 1.8 metres. Pinholes not exceeding 1.6mm in diameter are acceptable. Large Clusters, or close spacing of smaller pinholes, visible at 3 metres shall not be acceptable in the central 80% area of the glass area. Clusters are permissible out of this area or within the 20% perimeter glass area.
Uniformity: When coated glass is viewed from a minimum distance of 3 metres the potential for subtle variations in appearance from glass to glass exists. This may be caused by production variations in coating processes and is not considered a defect.
Distortion: Due to a number of factors such as heat treatment, insulating air spacers, framings etc., distortions of reflected objects viewed on the glass surfaces cannot be considered a defect of the coated glass or the final fabricated products.
Scratches: Scratches visible at 3 metres, which are up to 75mm in length, shall be acceptable. Scratches from 76mm to 127mm shall be allowed within 76mm from the edge of the glass. Concentrated scratches or abraded areas shall not be allowed.
