Cellulose is the most abundant organic polymer on Earth and the main component of all plants. It makes sense to harness this resource and unlock its potential as a biomaterial. One development centered around this is Valida fibrillated cellulose manufactured by Sappi. Valida is a 100% natural, biodegradable, and sustainable material produced by mechanically processing wood-derived cellulose fibers down to their smallest components, resulting in innovative material properties. These properties include excellent stabilizing potential, rheology modification, and robustness. Valida’s unique rheology profile – high viscosity at rest and highly shear thinning – make it a suitable material for many applications, including waterborne paints and coatings systems.

Through its non-soluble 3D-fibrils network, Valida enhances rheology and anti-settling performance, improves mechanical properties as tensile strength and wet scrub resistance, while contributing to higher stain, chemical resistance and dirt pick-up of the dry coating layer.

Learning Objectives:

• What fibrillated cellulose is and its key functionalities
• How Valida improves rheology: Increased stability, anti-settling and anti-sagging
• How fibrillated cellulose helps boost applicability/workability of thick coating layers with no mud cracking
• Impact of cellulose fibrils on mechanical and surface properties of roof coatings

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