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Printing Partners > Paper Types Explained > C2S Paper

C2S Paper

C2S Paper: The Go-To Stock for Double-Sided Print Quality

C2S paper (coated two sides) is printing paper with a clay or mineral coating on both the front and the back, so ink sits on the surface and prints with the same sharpness on both sides. It comes in gloss, satin, and matte finishes and in text, cover, and point-measured board weights, which makes it the standard sheet for brochures, catalogs, postcards, and business cards. At Printing Partners we keep 10 pt, 12 pt, 14 pt, and 16 pt C2S on hand, our offset presses run C2S board up to 28 pt, and for business cards we usually start clients on 14 pt C2S, or 16 pt when the card needs a heavier feel.
Written by Kraig Downham, Marketing Director, with Printing Partners since 2005. Last updated October 2026.

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Tell us about your project and we’ll recommend the right C2S stock, coating, and print specs for sharp double-sided results.

    Best Uses of C2S Paper in Offset Printing

    What Is C2S Paper?

    C2S stands for “Coated Two Sides.” Unlike C1S, which has a coated surface on only one face, C2S paper is finished on both the front and back. The result is consistent shine, smoothness, and color vibrancy across the entire sheet. This makes it especially effective for double-sided projects where both surfaces need to carry graphics or imagery with equal quality.

    How Ink Behaves on C2S Paper

    Coating on both faces prevents ink from soaking into the fibers, keeping colors vibrant and details sharp. How the ink dries depends on the press, not the paper. On our Heidelberg XL 106, which prints with UV inks, ultraviolet lamps cure the ink as each sheet is printed, so coated sheets are ready to handle as they come off the press. The mirrored finish across both sides ensures that double-sided printing looks balanced, with no dull or uneven reverse side to compromise the design.

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    Benefits of C2S Paper

    • Double-sided vibrancy: Both sides deliver equal gloss and clarity for high-impact visuals.
    • Consistent finish: No mismatch between front and back; ideal for professional, polished presentations.
    • Versatility: Suitable for brochures, catalogs, postcards, packaging, and marketing collateral.
    • Durability: Coating provides resistance to dirt and moisture, protecting both sides of the print.
    • Premium look: Gloss, satin, or matte coating on both sides, matched to how the piece will be used.
    • Supports advanced finishes: Compatible with specialty options like spot UV, foil stamping, and embossing.

    Challenges and Considerations

    • Not writable: Both sides are coated, so ink pens don’t adhere well and can smudge.
    • More rigid: Thick C2S stock requires scoring for clean folds and precise die-cutting.
    • Higher cost: Coating both sides is typically more expensive than single-sided options.
    • Fingerprint visibility: High-gloss surfaces can show smudges if handled frequently.

    Because both sides are coated, C2S is not ideal for heavy handwriting. Ballpoint pens may work, but gel pens and markers can smear on the glossy surface. If you need to leave space for notes, addresses, or labeling, consider C1S stock instead. C2S is best reserved for pieces where both sides are printed for visual impact rather than writability.

    C2S paper is manufactured in a wide range of weights. Text weights (60 to 100 lb) provide flexibility for magazines, brochures, and catalogs. Cover weights (80 to 130 lb and higher, plus board measured in points) offer durability for postcards, packaging, and book covers. The choice of weight impacts opacity, folding performance, and perceived quality. Lighter sheets reduce mailing costs, while heavier boards give covers and cards more stiffness.

    Use C2S paper when you need both sides of the sheet to carry high-quality print. It is ideal for brochures, catalogs, postcards, packaging sleeves, magazine covers, and marketing collateral. If your design depends on vibrant imagery and a consistent finish across both sides, C2S is the premium choice. When writable space is required, C1S stock is often a better fit.

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