PROFILM 21-071-002 (also known as Oracover Black 2M) is a high-quality, professional-grade iron-on covering material designed for RC model aircraft. It is a 2-meter long roll (typically 600mm wide) of solid black polyester film, recognized for its durability, ease of use, and ability to prevent shrinking or sagging in direct sunlight. 

Key Features and Characteristics:

• Material: Made of genuine, high-strength polyester that adds structural stability to model aircraft, offering excellent puncture resistance.
• Application: It is an iron-on, heat-activated film. The adhesive is activated at approximately 80°C (176°F), making it suitable for both wood and foam structures.
• Unique Multi-Layer System: The adhesive and color pigment layers are separated. If the film is removed or repositioned, it does not leave sticky color residue behind. It is known as the only covering that allows re-positioning without fear of color-layer separation.
• Durability & Finish: It is fuel-resistant, can be painted with Oracolor paints, and resists temperatures up to 250°C. When applied properly, it provides a wrinkle-free, non-sagging, high-gloss, and color-fast finish.
• No Bleeding: The material ensures no color "bleeding" at the edges when ironing over seams.
• Dimensions: 2 meters in length by 600mm in width. 

This, product (LANITZ-PRENA 21-071-002) is manufactured in Germany and is widely regarded as a standard for covering aircraft wings, fuselages, and tail surfaces.