Technirez R1025
Pre-Filled Electrical Casting

Product info

TECHNIREZ® R1025 – Pre-Filled Electrical Casting Epoxy System

TECHNIREZ® R1025 is a pre-filled, solvent-free epoxy casting resin engineered for ambient-temperature curing to produce hard, resilient castings with excellent mechanical and electrical performance. Designed specifically for demanding electrical applications, R1025 provides exceptional dimensional stability, high dielectric strength, and long-term resistance to thermal and electrical stresses.

Formulated for precision encapsulation, R1025 is the preferred resin system for instrument transformers, lighting transformers, small power transformers, electrical switchgear components, and industrial electrical assemblies. Its pre-filled formulation enhances casting flow, reduces shrinkage, and ensures consistent performance across a wide range of mould sizes and configurations.

When combined with H1026 or H2407 hardeners, TECHNIREZ® R1025 delivers highly adaptable cure profiles suitable for both thin and thick castings. The system cures reliably at room temperature, producing tough, durable castings with excellent adhesion, low moisture absorption, and superior electrical insulation characteristics.

– Engineered For Protection. Built For Performance.

KEY PERFORMANCE FEATURES

Pre-Filled Casting Resin For Smooth, Controlled Pouring
Solvent-Free Formulation For Low Shrinkage & Clean Processing
Excellent Electrical Insulation Properties
High Mechanical Strength & Long-Term Durability
Ambient Temperature Cure For Production Efficiency
Resistant To Thermal Cycling & Electrical Stress
Ideal For Transformer Encapsulation & Switchgear Components
Compatible With Multiple Hardeners For Flexible Cure Profiles

TECHNICAL SPECIFICATIONS

Pot Life	40-52 / 60-90 mins
Cure Time	45-50 / 16-24 hrs
Mix Ratio	20 Part H1026 to 100 Part Resin by Weight 10 Part H2407 to 100 Part Resin by Weight
Compatible Hardener	H2407 Medium / H1026 Slow
Physical State	Beige - Black liquid
Pack Size	6 / 30 / 300 Kg

Technirez R1025

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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