Technirez R2523
White Gelcoat

Product info

TECHNIREZ® R2523 – Thixotropic White Surface Coating for Tooling & Pattern Making

TECHNIREZ® R2523 is a solvent-free, thixotropic epoxy system designed for use with H2401 hardener to produce a durable white surface coating for tooling, pattern making and master model production. Curing at ambient temperature, R2523 forms a hard, stable surface that can be shaped, cut, machined and polished using standard workshop tools.

The system’s thixotropic behaviour allows excellent build on vertical and contoured surfaces, enabling smooth, controlled application without sagging. Once cured, the surface exhibits high dimensional stability and excellent handling strength, making it ideal for producing master patterns, plugs, detail surfaces and tooling face layers that require accuracy and durability.

TECHNIREZ® R2523 is well suited for composite workshops, model-making studios, marine plug production, prototyping environments and industrial tooling applications where a reliable, easy-to-apply surface coating is required.

– Built For Detail. Engineered For Durability.

KEY PERFORMANCE FEATURES

Solvent-Free Coating System For Clean, Controlled Processing
Choice Of Fast Or Slow Hardener To Match Ambient Conditions
Reliable Cure From 15°C To 60°C
Suitable For General-Purpose Composites & Structural Coating
Strong & Excellent Mechanical Performance
Easy-To-Mix, Low-Odour Epoxy System
Consistent Wet-Out For Smooth, Even Coating
Ideal For Marine, Industrial & Repair Applications

TECHNICAL SPECIFICATIONS

Pot Life	20 - 25 mins
Demould Time	6 - 8 Hrs
Mix Ratio	10 parts hardener to 100 parts resin by weight
Compatible Hardener	H2401
Physical State	Resin: White Thixotropic Paste / Hardener: Amber Liquid
Pack Size	Resin: 5 / 25 kg Hardener: 1 / 5 /25 kg

Technirez R2523 - White Gelcoat

frequently asked questions

How does ATL tailor composite systems for different industries?

Every industry has distinct performance, compliance, and manufacturing requirements. ATL’s in-house chemists and engineers develop and refine epoxy systems, adhesives, and core materials to meet the specific demands of marine, defence, aerospace, automotive, industrial, civil, architectural, and sporting applications — ensuring every product delivers optimal strength, efficiency, and durability.

Can ATL customise materials for my project or process?

Yes. ATL offers custom formulation and process engineering support to align material performance with your production requirements — whether infusion, hand lay-up, lamination, bonding, or CNC-routed panel construction. Our technical team collaborates closely with customers to deliver precision-matched resin systems and structural solutions for unique applications.

Are ATL’s composite systems certified for high-performance applications?

Absolutely. ATL operates under an ISO 9001:2015-certified quality management system, with selected materials approved by DNV for use in structural and high-load applications. Every ATL system is manufactured to exacting standards of performance, consistency, and traceability to meet the demands of defence, industrial, and advanced engineering environments.

What makes ATL’s materials suitable for large-scale or structural builds?

ATL’s epoxy systems, structural panels, and composite cores are engineered for high strength-to-weight performance, dimensional stability, and fatigue resistance. These attributes make ATL materials ideal for large composite assemblies, modular structures, and precision-engineered components where long-term strength, weight reduction, and reliability are essential.

Does ATL offer sustainable or bio-based composite options?

Yes. ATL is committed to advancing sustainable composite technology, offering USDA-Certified Bio-Based epoxy systems and environmentally conscious materials that reduce waste, extend service life, and minimise environmental impact. Our ongoing R&D focuses on improving sustainability without compromising structural integrity or mechanical performance.

How can I select the right ATL system for my application?

Choosing the ideal composite system depends on your structure’s design, load requirements, manufacturing process, and environmental exposure. ATL’s in-house engineers and chemists provide tailored advice to ensure the correct combination of resin, core, adhesive, and surface technology for your project.
To discuss your application or request technical guidance, contact ATL’s Technical Team — we’ll help you identify the most effective and efficient composite solution for your build.

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