LOCTITE® 4902

LOCTITE® 4902 is a highly flexible, low-viscosity instant adhesive engineered specifically for demanding industrial and medical manufacturing applications. This commercial-grade ethyl cyanoacrylate formulation offers significant performance enhancements over traditional instant adhesives, providing increased strength in flexing bond lines and exceptional resistance to fluid leakages. 

This low-viscosity adhesive is well suited for the high-speed assembly of metals, elastomers, and plastics. It is particularly effective for bonding difficult-to-bond substrates such as polypropylene (PP), polyethylene (PE), and polytetrafluoroethylene (PTFE) when paired with an appropriate polyolefin primer. LOCTITE 4902 has been rigorously tested to Henkel's ISO 10993 protocols, making it fully compliant for use in the fabrication of disposable medical devices.

Key Benefits for Procurement and Engineering

• Enhanced Flex Life: Formulated to deliver superior structural integrity and high strength in dynamic, flexing bond lines.
• Excellent Sealing Integrity: Low-viscosity properties allow for deep penetration into close-fitting joints, preventing fluid leakages under pressure.
• Biocompatible Compliance: Tested against ISO-10993 protocols to ensure strict regulatory safety compliance for disposable medical apparatus.
• Rapid Fixture Times: Accelerates assembly line throughput with an ultra-fast 20-second fixture speed.

Technical Specifications

• Product Name: LOCTITE® 4902
• Chemical Type: Ethyl Cyanoacrylate
• Viscosity: Low-viscosity
• Fixture Time: 20 seconds
• Compliance: ISO 10993 biocompatible for disposable medical devices
• Target Substrates: Metals, elastomers, plastics, and difficult-to-bond materials (PP, PE, PTFE with primer)

Frequently Asked Questions

Can LOCTITE 4902 be used on low surface energy plastics like PP or PTFE?
Yes, LOCTITE 4902 is highly effective on difficult-to-bond plastics including PP, PE, and PTFE. However, to achieve maximum tensile strength, surfaces must be pre-treated with a specialized polyolefin primer, such as Loctite 770.

Is LOCTITE 4902 certified for medical manufacturing?
LOCTITE 4902 is tested to Henkel's ISO 10993 protocols specifically for use in the assembly of disposable medical devices, ensuring it meets strict biocompatibility standards for commercial medical production.

How does LOCTITE 4902 perform under mechanical stress compared to standard super glues?
Unlike conventional rigid cyanoacrylates, LOCTITE 4902 features a highly flexible formulation. This provides significantly increased strength and elongation properties in flexing bond lines, preventing the adhesive from cracking under dynamic mechanical stress.

Secure Wholesale Pricing

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