Araldite 2033 Flame Retardant Epoxy Adhesive 12 MPa Shear Strength

Araldite® 2033 is a room-temperature curing, two-component flame-retardant epoxy adhesive. Certified for demanding applications in electronics and railways (e.g., EN 45545-2:2013 HL3 rating), it offers balanced tensile properties (medium modulus, high elongation at break) for structural bonding. Requires dedicated dispensing guns; mix ratio 100:88 by weight (resin:hardener); cures to black high-strength bond.

This section deepens the parameters from Part 1, highlighting the special attributes of Araldite® 2033. The product features self-extinguishing properties and is certified UL 94 V-0, indicating a high flame retardancy level. Tested according to EN 45545-2:2013 with an HL3 rating, it meets railway application requirements R22 and R23. The mixed adhesive's lap shear strength exceeds 12 MPa at 23°C, demonstrating high strength; additionally, it has an elongation at break of 39% and a tensile modulus of 576 MPa, offering balanced mechanical properties. The shear modulus varies with temperature: 2.52 GPa at -40°C, 2.05 GPa at 0°C, 205 MPa at 60°C, and 36 MPa at 100°C, showcasing excellent thermal stability. The glass transition temperature is 69°C (via DMA testing), enhancing reliability in high-temperature environments. After thermal cycling (100 cycles from -30°C to 70°C), the lap shear strength remains at 18.8 MPa, proving its durability.

Araldite® 2033 is engineered for high-demand structural bonding applications. Its flame retardancy and high strength enable widespread adoption across multiple industrial sectors. Drawing on documented electronics and railway applications (e.g., compliance with EN 45545-2 standards) and corroborating product specifications from industry databases, its primary use cases include:

1. Railway Vehicle Manufacturing
   Used for bonding interior panels, seat frames, and electrical enclosures in trains or subway cars. Its HL3 flame-retardant rating meets stringent safety regulations to prevent fire propagation.

2. Electronics Assembly
   Bonds metal/plastic components (e.g., circuit board brackets, housings) in smartphones, servers, or industrial control cabinets. Its self-extinguishing properties (certified to UL94 V-0) ensure safety during overheating or short-circuit events.

3. Construction and Transportation
   Adheres composite parts in public transport (e.g., buses, aircraft) or fire partitions in buildings, leveraging its high shear modulus and thermal stability (enduring up to 100°C continuous exposure).

4. Other Industrial Applications
   Provides durable strength against vibrations and extreme temperatures in wind turbine blade bonding (e.g., rotor/stator potting) or automotive body structures.

1. Who are we?

We are Shenzhen Huazhisheng New Material Technology Co., Ltd., a professional industrial adhesives and sealants supplier based in China since 2018. we serve global markets: Mainland China (60%), Southeast Asia (20%), North America (10%), and Europe (10%).

2. What products do you offer?

we supply high-performance adhesives and sealants from global leaders including: Cemedine, Dow Corning, Shin-Etsu, Araldite, and Momentive,etc.

3. How do you guarantee product quality?

Quality assurance through: Mandatory pre-production samples approval Final inspection by QC team before shipment International certifications: SGS, UL, FDA, RoHS, REACH

4. Why choose us over other suppliers?

Reliable Supply:Authentic products from top manufacturers Expert Support:Technical guidance for product selection Global Compliance:Certifications meeting target market standards Efficient Service:Customized solutions & professional support

5. What services do you provide?

Delivery​:EXW/FOB/CIF Payment​:USD/EUR/CNY/HKD via T/T, L/C Support​:Technical consultation & logistics coordination