Easi Fill Hydro Jointing Compound Easi Fill Hydro Jointing Compound is a high-performance, moisture-resistant compound designed for jointing drywall, gypsum boards, and false ceilings in high-humidity environments. Specially formulated with advanced water-repellent additives, it provides superior protection against moisture, making it ideal for use in kitchens, bathrooms, and other damp areas. Composed of high-quality gypsum, polymers, and binders, Easi Fill Hydro ensures excellent adhesion, minimal shrinkage, and a smooth, durable finish. Its quick-drying and easy-to-apply properties make it a preferred choice for both residential and commercial projects, offering a professional-grade surface ready for painting or further finishing.