Epson S450433 Premium Posterboard Matte 24" x 36" Sheets

Overview :

The Epson S450433 is a rigid, professional-grade printable media board pack designed for graphics production facilities, commercial photographers, and exhibition design teams. Engineered to provide the mechanical stiffness of a pre-mounted substrate, this product eliminates the time-consuming and error-prone process of manually mounting thin paper sheets onto foam cores. It serves as an optimal solution for short-term indoor signage, high-fidelity gallery displays, presentation graphics, and point-of-sale retail marketing.

The media features a smooth, bright-white alpha-cellulose paper base with an opacity rating of 94% and an ISO brightness of 104%. This flat, non-reflective matte finish ensures optimal readability under harsh overhead commercial lighting arrays, eliminating specular reflections that distort graphic details. The board coating chemistry is tailored for dense ink absorption, enabling instant-dry capabilities directly at the printhead platen to facilitate immediate trimming and handling.

The S450433 posterboard is optimized for aqueous inkjet architecture, ensuring exceptional dot control and color tracking when paired with Epson UltraChrome and archival pigment ink sets. It is natively compatible with professional large-format flatbed or straight-path roll-feed printers equipped with manual thick-media slots. Note that due to its rigid 1.3 mm thickness, this media cannot travel through standard curved or tightly winding paper paths, and should never be used with latex or solvent ink configurations.

Key Features :

• Pre-mounted rigid construction removes the necessity for post-print foam mounting.

• 104% ISO brightness rating produces vivid highlights and deep color contrast.

• Instant-dry matte surface chemistry prevents ink smudging during sorting.

• High 94% opacity prevents underlying support structures from shadowing through.

• 1.3 mm heavy-gauge substrate guarantees excellent long-term structural flatness.

Specifications :