Advanced additives for pre bagged renders across commercial, residential, and architectural projects
External render systems face a unique set of challenges — from exposure to the elements and thermal movement, to the need for consistent finish quality and long-term durability. Oscrete’s additive technologies are designed to meet these demands, supporting bagged render systems with precision, reliability, and performance.
Whether you’re working with machine-applied renders, lime-based heritage finishes, or modern polymer-modified systems, our solutions help optimise air content, water retention, and cohesion — ensuring smoother application, reduced cracking, and enhanced insulation values.
Render mixes must balance workability, durability, and finish quality — often under tight mixing cycles and variable site conditions. Oscrete’s additives are developeded to deliver:
These benefits are essential for achieving high-performance render systems that meet both aesthetic and mechanical requirements.
Our render additive portfolio combines advanced materials to support consistency, durability, and ease of use across a wide range of applications.
MorTech Ecoair – Air Entrainer
Provides stable, controlled air content to improve workability and reduce plastic shrinkage. Ideal for machine-applied and hand-trowelled renders.
Mortech Ecoset – Retarder
Extends open time and improves workability in warm conditions or large surface areas, helping prevent premature setting and surface defects.
MorTech Ecocure – Water Retention Agents
Formulated to enhance water retention in mortars, supporting curing and reducing cracking.
Elotex Polymers – Adhesion, Flexibility & Hydrophobicity
Polymer additives improve bond strength, flexibility, and water repellence — essential for long-term performance and durability.
Stikloporas – Lightweight Aggregate
Reduces render weight, increases yield, and improves thermal performance. Ideal for energy-efficient building envelopes and high-coverage applications.
Owens Corning Cem-FIL® 70.3 Glass Fibres
Specially suited to render applications, these fibres reduce plastic shrinkage cracking and enhance durability — particularly in exposed or large-area finishes
Our fully equipped lab supports product development, testing, and optimisation — helping manufacturers achieve consistent results and meet evolving performance standards.
To explore the right additive solution for your render system, visit our Product Selector.
Oscrete – Performance Through Partnership Smart additives. Reliable finishes. Better render.
Click the button below to see related DOPs and Datasheets for External Renders.
