SW ADHESIVE
Toughened Flexible Epoxy for Impact Resistance
Two-part epoxy formulated with elastomeric modifiers for impact and vibration tolerance.
Highlights
- Elastomer-toughened epoxy system
- 3:1 mix ratio, 40-minute pot life
- Impact strength 8-12 kJ/m2 (Notched Izod)
- 18 MPa tensile shear strength on aluminum
- Peel strength >5 kN/m
- Overnight cure at 23°C or 2 hours at 60°C
- Vibration damping properties
- Railway, marine, and wind turbine applications
Specifications
| Mix Ratio | 3:1 by weight |
|---|---|
| Pot Life | 40 minutes at 23°C |
| Impact Strength | 8-12 kJ/m2 Notched Izod |
| Peel Strength | >5 kN/m |
| Certifications | ISO 9001, UL structural |
Product Detail
Why a Toughened Epoxy Instead of a Rigid One?
Standard epoxies deliver high shear strength but crack under sudden impact or cyclic vibration. This elastomer-toughened epoxy adhesive is formulated to absorb dynamic energy while maintaining structural bond integrity — engineered for heavy-industry assemblies where joints see repeated mechanical stress, not just static loads.
Key Performance Data
Mix Ratio
3:1 by weight
Pot Life (23°C)
40 minutes
Impact Strength
8–12 kJ/m² (Notched Izod)
Tensile Shear (Aluminum)
18 MPa
Peel Strength
> 5 kN/mN/m
Cure Schedule
23°C overnight / 60°C × 2 h
What These Numbers Mean for Your Assembly
- Impact strength of 8–12 kJ/m² (Notched Izod) indicates the cured adhesive can dissipate sudden mechanical shock across the bond line rather than transferring it as a crack. This is the primary difference between a toughened and a standard rigid epoxy.
- Tensile shear of 18 MPa on aluminum confirms the adhesive achieves structural-grade static bonding on a common industrial substrate. Bond strength on other substrates (steel, composites, treated polymers) should be verified for your specific application.
- Peel strength above 5 kN/m measures resistance to cleavage forces — the failure mode that breaks brittle adhesives at joint edges. This value supports use in lap joints and flanged assemblies where peel stress is unavoidable.
- Vibration damping is a property of the elastomer-toughened matrix. It helps attenuate mechanical oscillation transmitted through the bond line, relevant for rotating equipment, rail carriages, and turbine structures.
Processing Characteristics
The adhesive is a creamy, self-leveling paste with a light tan appearance. At 23°C, you have a 40-minute pot life to mix, apply, and assemble. The 3:1 mix ratio is specified by weight — volumetric dispensing equipment should be calibrated accordingly. Two cure paths are available: overnight at ambient temperature (23°C) for shop-floor convenience, or 2 hours at 60°C when faster throughput is required.
Application Areas
This adhesive is specified for heavy-industry bonding in environments where impact resistance and vibration damping are functional requirements:
- Railway — structural and semi-structural joints subject to dynamic loading and vibration
- Marine — assemblies exposed to mechanical shock and cyclic stress
- Wind turbine — component bonding where vibration damping protects structural integrity
For substrates or conditions outside these areas, please describe your application so we can confirm suitability.
Buyer FAQ
How does this toughened epoxy differ from a standard structural epoxy?
Standard epoxies are rigid and transfer stress directly; they excel in shear but fail under impact or peel. This elastomer-toughened system sacrifices some rigidity to achieve 8–12 kJ/m² impact strength and >5 kN/m peel strength, making it suitable for dynamic-load environments where a rigid epoxy would crack.ck.
Can I use it on substrates other than aluminum?
The 18 MPa tensile shear value is tested on aluminum. For steel, composites, or other substrates, bond performance depends on surface preparation and substrate chemistry. We recommend providing your substrate details so we can advise on expected performance or arrange substrate-specific testing.
Is the 40-minute pot life sufficient for large-area assembly?
At 23°C, you have 40 minutes from mixing to assembly. For larger bond areas, consider batch sizing, ambient temperature control, or the 60°C accelerated cure option. Higher ambient temperatures will shorten pot life; lower temperatures will extend it.
What certifications are available?
The product is listed under UL structural recognition. The manufacturing facility holds ISO 9001:2015 certification for quality management. Product-specific compliance documentation (RoHS, REACH, full test reports) is available upon request.
What packaging, MOQ, and lead time should I expect?
Packaging options, minimum order quantities, and production lead times are project-dependent. Please share your expected annual volume and preferred packaging format (cartridges, drums, IBC) so we can provide a specific quotation.
Manufacturer
Manufactured by TIANJIN SHENGWANG ELECTRONIC CHEMICAL PLANT (SW ADHESIVE), producing industrial adhesives and electronic chemical products in Tianjin, China since 1993. The facility operates a dedicated epoxy adhesive production line with in-house quality testing — including viscosity meters, tensile strength testers, and environmental chambers — to validate batch performance.
The plant holds ISO 9001:2015 certification for quality management. Export packaging supports IBC containers, drums, and custom formats under FOB, EXW, and CIF terms. SW ADHESIVE supplies B2B buyers across North America, South America, Eastern Europe, the Middle East, Central Asia, Southeast Asia, South Asia, and Africa.
Epoxy adhesive production line with in-line quality control
Request a Quote or Technical Consultation
To receive an accurate quotation and selection recommendation, please include: your application and substrate(s), expected annual volume, preferred packaging format, and any required compliance documentation. Our technical team will respond with a tailored proposal.
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