Overview The HP C3869A is a roll of natural tracing paper designed for professionals who require precise reproduction and reliable long-term storage of final drawings. Measuring 24 inches wide and 150 inches long, it provides ample space for architectural plans, engineering elevations, and graphic overlays. With a basis weight of 24 lb (90 gsm), this paper resists tearing and curling, making it suitable for repeated handling and detailed work. Key features Durable 24 lb (90 gsm) weight that withstands frequent use without damage Matte surface that allows for clean marking, easy measurement, and clear readability under various lighting conditions 25 percent opacity that supports accurate overlay work by allowing underlying details to show through 61 ISO brightness level that enhances contrast for fine lines and detailed drawings Archival quality ensures drawings can be stored flat or rolled without yellowing or loss of clarity over time Generous roll size of 24 inches by 150 inches to accommodate large-format projects and multiple drawings Key specs Width: 24 inches Length: 150 inches Basis weight: 24 lb (90 gsm) Opacity: 25 percent Brightness: 61 ISO Surface finish: Matte Archival quality: Yes Ideal uses and environments This tracing paper is well suited to architects, engineers, and designers who transition from initial sketches to final presentations. Its durability and archival properties make it a strong choice for studios, drafting rooms, and offices where detailed overlays and long-term storage of drawings are essential. The paper’s balance of opacity and brightness supports both precise line work and layered compositions, fitting well into professional workflows that demand accuracy and clarity.
