To ensure quality,we use digital camera inspection on all interlayer film production. Computerized systems can detect and document pin holes, voids, gels, wrinkles, streaks and dark or light contaminants as small as 0.3 mm. All of our interlayer extruders are housed in an atmospherically controlled hard walled white room. Each extrusion line is in its own ISO Class 7, soft walled clean room. Engineers know that the highest quality standards are found in the aerospace industry. This is why the vast majority of all TPU bonded aircraft canopies and windows are laminated using HYJ interlayer film. Our products do not require refrigerated storage and do not contain plasticizers that can migrate and degrade a composite structure. HYJ has the cleanest, most modern interlayer film extrusion operation in North America, Europe and Asia and extrudes over 50% of the world’s total usage of TPU interlayers. Our HYJ film products, available in aliphatic TPU and EVA resins, are the highest quality in the industry and built.