DELO-DUOPOX Two-Part Epoxy Resin Adhesives

Two-Part Epoxy Adhesives for Structural Bonding and Industrial Assembly

DELO-DUOPOX adhesives are specified in structural bonding and mechanical joining applications where high strength, chemical resistance and room temperature cure are required without a UV lamp, heat source or metal substrate to trigger polymerisation.

Structural joining grades bond metal, plastic, glass and composite components where the adhesive replaces or supplements mechanical fastening methods. The cured bond distributes stress evenly across the full joint area rather than concentrating it at discrete fixing points, reducing fatigue failure risk in assemblies under sustained dynamic or impact loading. Selected SJ-series grades offer temperature resistance up to 180°C for structural joints in automotive and industrial equipment operating under sustained elevated temperatures.

For potting and encapsulation of electronic assemblies, sensor housings and electromechanical components, DELO-DUOPOX casting resin grades protect against mechanical shock, vibration and chemical exposure over extended service life. Room temperature cure removes the need for an oven in the potting process, and grades with extended open times allow complete filling of complex housing geometries before polymerisation begins.

Key characteristics include:

• Full joint area stress distribution rather than point loading at fastening locations
• Temperature resistance up to 180°C on selected SJ-series structural grades
• Extended open times on casting grades supporting complex geometry filling
• No oven requirement for potting and encapsulation operations
• Broad substrate compatibility across metals, plastics, composites and ceramics

How Two-Part Epoxy Adhesives Work in Automated and Manual Assembly

Manufacturers use two-part epoxy adhesives when they need room temperature cure without specialist curing infrastructure, processing flexibility across substrate types, or extended open times for complex assembly operations. Unlike one-part systems that require external energy sources, two-part epoxies polymerise through a chemical reaction triggered by mixing.

The DELO Side-by-Side cartridge system pre-doses resin and hardener in the correct ratio, eliminating manual weighing and mixing steps. When components are passed through a static mixing nozzle, the two parts combine, and the chemical cross-linking reaction begins immediately, producing a gel-like consistency that progresses to firm-to-touch and finally to full strength. Rapid grades reach processing strength in under 10 minutes, whilst standard grades offer open times up to 8 hours before cure begins.

The cured bond forms a rigid, high-strength structure with resistance to sustained mechanical loads, thermal cycling, chemical exposure and vibration. Heat can be applied optionally to accelerate the cure process where production cycle times require it.

Key characteristics include:

• Room temperature polymerisation triggered by mixing, with no external energy source required
• Chemical cross-linking produces a rigid, high-strength cured structure
• Flexible cure speed ranges from under 10 minutes to 8 hours, depending on the application
• Optional heat acceleration available to speed cure where cycle times require it
• Static mixing nozzle ensures the correct mix ratio in both manual and automated dispensing

Where can I buy DELO-DUOPOX two-part epoxy adhesives in the UK?

Inseto is the authorised distributor for the full DELO-DUOPOX range across the UK and Ireland. Call +44 (0)1264 334505 or use the enquiry form on this page to request a sample, datasheet or quote.

What is the difference between DELO-DUOPOX and one-part epoxy adhesives?

DELO-DUOPOX two-part adhesives cure at room temperature when resin and hardener are mixed together. One-part adhesives like DELO MONOPOX require heat to polymerise them. Two-part epoxies offer greater processing flexibility when heat sources or UV lamps are not available, and extend open times for complex assembly operations.

How long does DELO-DUOPOX take to cure?

Cure time depends on the grade. Rapid grades reach firm-to-touch in under 10 minutes at room temperature. Standard grades offer open times up to 8 hours before setting begins. Full cure times vary by grade and can be accelerated by applying heat.

What is the temperature operating range for DELO-DUOPOX?

DELO-DUOPOX adhesives operate across -65°C to 140°C on standard grades, with selected SJ-series and AB-series grades offering resistance up to 180°C. Inseto can recommend the correct grade for your operating temperature range.

Do DELO-DUOPOX adhesives require special dispensing equipment?

No. DELO-DUOPOX is supplied in pre-dosed DELO Side-by-Side cartridges with a static mixing nozzle. The cartridges work with standard manual or automated dispensing equipment without requiring UV curing systems or oven capacity.

Does Inseto provide technical support?

Yes. Inseto provides technical support for adhesive selection, dispensing processes, cure optimisation and production line integration across the UK and Ireland.