Aluminum panels are lightweight and durable Sizes of Metal Board 12x18 inchesA perfect medium for displaying artwork and photography in various applications from residential to commercial usage.The sheet has a thin transparent film that must be removed before sublimation. Initially, it may seem that the sheet is scratched or stained, but in reality, what is stained is this thin film that protects the aluminum sheet.Time: 1 Minute 30 SecondsTemperature: 400° F (204° Celsius)Pressure: Heavy