Techniglue R5
Toughened Adhesive

Product info

R5 – Critical Composite & Metal Bonding

High-strength, toughened epoxy adhesive for critical composite and metal bonding.

BondingTECHNIGLUE® R5 is a low-viscosity, solvent-free, toughened epoxy adhesive designed for high-strength structural bonding across composite and metallic substrates. Formulated for room-temperature cure, R5 provides exceptional bond integrity, outstanding peel strength, and superior resistance to micro-cracking — ideal for demanding applications requiring reliability and durability.

Its toughened chemistry delivers enhanced fatigue and impact resistance, ensuring long-term performance when bonding carbon fibre, Kevlar®, fibreglass, and a wide range of metals. R5 also overcomes common challenges in metal adhesion, offering significantly improved peel strength compared to standard epoxy systems.

Widely used in critical structural assemblies across marine, aerospace, industrial, architectural, and automotive sectors, R5 is engineered for joining composite components, metallic fittings, and pre-fabricated parts in high-load environments. Its combination of toughness, micro-crack resistance, and exceptional adhesion makes R5 a dependable solution for composite-to-composite, composite-to-metal, and metal-to-metal bonding

KEY PERFORMANCE FEATURES

Toughened Epoxy For Superior Impact, Vibration & Fatigue Resistance
Excellent Peel Strength For Reliable Metal & Fibre-Reinforced Bonding
Low-Viscosity, Solvent-Free System For Excellent Wet-Out & Controlled Flow
Exceptional Resistance To Micro-Cracking, Ideal For Carbon & Aramids
High-Strength Structural Bonding For Composite, Metallic & Hybrid Assemblies
Room-Temperature Curing With Predictable Handling & Cure Progression
Maintains Mechanical Stability Under Harsh Environmental Conditions
Engineered For Critical Applications Requiring Maximum Reliability & Lifespan

TECHNICAL SPECIFICATIONS

Substrate Suitability	Metal-to-metal, metal-to-composite, composite-to-composite
Pot Life	56 min
Cure to Solid State	12 - 15 hrs
Mix Ratio	2 parts H5 Hardener to 100 parts R5 Resin by weight
Compatible Hardener	H5
Pack Size	625g / 5kg

Techniglue R5 Toughened Adhesive

Techniglue R5 Toughened Adhesive - Engineering Data

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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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