Techniglue R5
Toughened Adhesive

Product info

R5 – Critical Composite & Metal Bonding

TECHNIGLUE® R5 is a high-performance structural epoxy adhesive engineered for reliable bonding of composites, metals, timber and engineered substrates. Its thixotropic, gap-filling formulation delivers excellent bond strength and durability while remaining easy to apply on vertical or uneven surfaces.

This solvent-free, toughened epoxy system is designed for high-strength structural bonding across composite and metallic substrates. Formulated for convenient room-temperature cure, R5 provides exceptional bond integrity, high peel strength and outstanding resistance to micro-cracking — making it well suited to demanding applications where reliability and long-term durability are essential.

The toughened chemistry enhances fatigue and impact resistance, ensuring dependable performance when bonding carbon fibre, Kevlar®, fibreglass and a wide range of metals. R5 also addresses common challenges associated with metal adhesion, offering significantly improved peel strength compared with conventional epoxy adhesives.

TECHNIGLUE R5 is widely used in structural assemblies across marine, aerospace, transport, industrial and architectural applications. It is ideal for bonding composite components, metallic fittings and prefabricated structures where high load capacity, durability and long-term bond reliability are required. 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.

TECHNIGLUE® R5 Structural Epoxy Adhesive

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

TECHNIGLUE® R5 is a high-performance structural epoxy adhesive engineered for reliable bonding of composites, metals, timber and engineered substrates. The thixotropic, gap-filling formulation provides excellent bond strength and durability while remaining easy to apply on vertical or uneven surfaces

KEY PERFORMANCE FEATURES

STRUCTURAL STRENGTH
High load-bearing epoxy adhesive for demanding structural assemblies.
PEEL RESISTANCE
Toughened epoxy chemistry improves resistance to bondline failure.
GAP FILLING
Thixotropic formulation fills irregular surfaces and uneven substrates.
MICRO-CRACK RESISTANCE
Toughened system resists micro-fracturing under cyclic loading.
MULTI-SUBSTRATE BONDING
Strong adhesion to composites, metals, timber and engineered materials.
ROOM TEMPERATURE CURE
Convenient cure profile for workshop and field applications.

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

TECHNIGLUE® R5 is a solvent-free, toughened epoxy adhesive designed for high-strength structural bonding across composite and metallic substrates. Engineered for room-temperature cure, R5 delivers exceptional bond integrity, excellent peel strength and superior resistance to micro-cracking.

The toughened chemistry enhances fatigue and impact resistance, ensuring long-term performance when bonding carbon fibre, Kevlar®, fibreglass and a wide range of metals. R5 also addresses common challenges associated with metal adhesion, offering significantly improved peel strength compared with standard epoxy systems.

Widely used in structural assemblies across marine, transport, industrial and architectural sectors, R5 is ideal for bonding composite components, metallic fittings and prefabricated structures where durability and reliability are essential.

Typical Applications

TECHNIGLUE R5 is commonly used in applications including:

Composite panel bonding
Composite-to-metal structural joints
Bonding of metallic fittings and brackets
Structural bonding in marine construction
Industrial composite assembly
Architectural composite structures
Transport and automotive component bonding

Multi-Material Structural Bonding

TECHNIGLUE R5 bonds effectively to a wide range of substrates including:

Carbon fibre composites
Fibreglass laminates
Kevlar® composites
Aluminium
Steel and stainless steel
Timber and engineered wood products
Composite sandwich panels
This versatility makes the adhesive suitable for marine, industrial, architectural and transport applications where different materials must be bonded reliably.

Techniglue R5 Toughened Adhesive

Techniglue R5 Toughened Adhesive - Engineering Data

WHY TECHNIGLUE ADHESIVES

ATL TECHNIGLUE® structural adhesives are engineered to deliver reliable bonding performance across demanding industries including marine, defence, transport and industrial manufacturing.

Formulated and manufactured in Australia, TECHNIGLUE adhesives are developed to provide consistent performance, structural reliability and compatibility with advanced composite manufacturing processes.

Explore ATL’s full range of structural adhesives on the Adhesives product category page.
https://atlcomposites.com.au/products/adhesives/

Learn more about ATL KINETIX epoxy laminating systems used in composite manufacturing.
https://atlcomposites.com.au/products/epoxy-resins/

Product Overview

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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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