Product Overview

Space Arc Engineering, an Authorized Project Distributor for STP Limited, supplies STP Extender 18 — a coarse non-toxic silicon dioxide aggregate from STP Limited available in coarse to medium particle sizes. Designed for heavy-build screed applications where substantial aggregate volume is required to achieve 4–10 mm thicknesses economically and durably.

Key Applications

• Heavy-build epoxy screed at 4–10 mm
• High-aggregate PU screed systems
• Floor repair mortars requiring coarse aggregate
• Broadcast on heavy-duty floor coatings
• Combined with resin for thick floor build-ups

Performance Advantages

• Coarser grading for high-volume screed formulations
• Provides excellent abrasion and impact resistance
• Non-toxic and chemically inert
• Reduces cost per m² for heavy build-up applications