MAC Hi-Build render is a lightweight, polymer modified, cementitious base coat formulated for applications to rough surfaces requiring a heavy build-up. HiBuild can be applied at thicknesses ranging between 4-10 mm in a single application. KEY FEATURES Just add water Factory blended for optimum consistency Lightweight for improved sag resistance Excellent durability Improved wokability and application properties Will not go drummy like traditional sand and cement renders SUITABLE APPLICATIONS Rough surfaces requiring a thicker render coat Stable and porous masonry surfaces (see surface selector chart) MAC Hi-Build Data Sheethi-build