The Arches Watercolor Block in Natural White is a high-quality watercolor paper block designed for artists working with watercolor paints. Here are the key features and specifications of this watercolor block:

1. Paper Weight and Type: The watercolor paper in the Arches Watercolor Block has a weight of 300 grams per square meter (gsm). It features a Hot Press (HP) surface, which is smooth and ideal for detailed work.
2. Composition: The paper is made from 100% long cotton fiber, providing it with beauty, lasting natural whiteness, and a unique touch. The use of long cotton fibers contributes to the paper’s strength and durability.
3. Gelatin Sizing: Exclusive to Arches, the paper is gelatin sized to the core. This sizing preserves the lustre and transparency of watercolor pigments while preventing them from penetrating into the paper fibers. This allows for layering washes and gives the paper added strength to resist erasing and scratching without tearing or linting.
4. Easy to Remove Paint: The gelatin sizing also allows watercolor paints to be easily removed, either when wet or dry, revealing the whiteness of the paper underneath. This feature is helpful for correcting mistakes or making adjustments to the artwork.
5. Water Absorption and Deformation: Arches Watercolor paper can absorb a large amount of water with limited deformation. This means the paper can handle wet washes without warping excessively, providing a stable surface for watercolor painting.
6. Block Format: The paper is in block format, meaning the sheets are bound on all four sides. This prevents the need for stretching the paper before painting and helps to keep the sheets flat during the painting process.