PROFILM 31-000-002 (also branded as Oralight Transparent Clear) is a premium, ultra-lightweight, iron-on covering film designed specifically for model aircraft, particularly electric R/C gliders and light park flyers. Made in Germany by Lanitz-Prena (the makers of Oracover), this film is renowned for its low weight, high strength, and ability to show the inner structure of the model. 

Key Features and Specifications:

• Weight: Approximately 36 g/m², which is significantly lighter (roughly 33% lighter) than standard Profilm/Oracover, making it ideal for weight-sensitive models.
• Dimensions: 2-meter length and 60 cm width (200 cm x 60 cm).
• Color: Transparent Clear (00), which allows the structure of the model to be clearly visible.
• Material: High-quality, durable polyester.
• Application: Heat-activated adhesive, typically applied with a covering iron set to 90°C–120°C for tacking and 150°C for shrinking.
• Structure: Features a patented multi-layer system where the adhesive and color layers are separated, allowing for repositioning without color separation.
• Performance: Fuel-resistant, resistant to sagging, and can withstand temperatures up to 250°C. 

This film is specifically marketed for projects where minimizing weight is crucial while still requiring a durable, high-quality finish. It is sometimes referred to as Oralite Clear or ORA31-000-002.