Loctite 4011 Cyanoacrylate Adhesive

LOCTITE® 4011™, a premium commercial-grade, low-viscosity, ethyl-based cyanoacrylate instant adhesive. Engineered explicitly for high-performance assembly applications, this structural adhesive provides uniform stress distribution coupled with high tensile and shear strength. It is uniquely formulated to deliver rapid, high-strength bonding across difficult-to-bond substrates, making it an indispensable asset for demanding production environments.

LOCTITE 4011 is ISO 10993 certified, making it fully compliant and exceptionally suited for the assembly of disposable medical devices. Whether your operation requires reliable bonding for porous materials like wood, leather, and fabric, or dense substrates such as metals and plastics, we maintain bulk inventory in stock to support your procurement cycle with competitive wholesale pricing.

Key Performance Benefits & Applications

• Medical Device Compliance: Tested to Henkel's strict protocols based on ISO 10993 biocompatibility standards to streamline product validation in medical manufacturing.
• Porous & Absorbent Substrates: Optimally designed to achieve secure, rapid cross-linking on challenging surfaces including wood, paper, leather, and fabric.
• Sterilization Resilience: Demonstrates excellent bond strength retention following standard industrial sterilization methods, including EtO, Gamma Radiation (25 to 50 kGy cumulative), and a 1-cycle steam autoclave protocol.
• Universal Material Bonding: Formulated for versatile, high-speed engineering applications across metals, plastics, and elastomers.

Technical Specifications

• Chemical Type: Ethyl cyanoacrylate
• Appearance: Clear, ultra-clear, colorless liquid
• Viscosity: 100 mPa·s (cP) Brookfield @ 77°F (25°C)
• Curing Type: Atmospheric humidity
• Primary Application: Component bonding
• Optimal Joint Gap: Thin bond gaps up to 0.05 mm
• Full Strength Development: Rapid initial fixture; full chemical/solvent resistance develops over a minimum 24-hour cure cycle
• Optimal Storage Conditions: 8°C to 21°C (Storage below 8°C or above 28°C will adversely affect material properties)

Industrial Operation & Processing Guidelines

For optimal structural integrity, ensure all mating surfaces are thoroughly clean and free from grease, oil, or manufacturing residues prior to application. This low-viscosity adhesive performs with maximum efficiency in tight bond gaps (0.05 mm). In production lines experiencing extended fixture times due to larger gaps or low atmospheric humidity, cure speeds can be accelerated by integrating Loctite 770. 

Frequently Asked Questions

Is LOCTITE 4011 certified for medical device manufacturing?
Yes, LOCTITE 4011 has undergone rigorous testing against Henkel’s protocols based on ISO 10993 biocompatibility standards. It is specifically certified and commercial-grade for the structural assembly of disposable medical devices.

How does sterilization affect the bond strength of LOCTITE 4011?
This adhesive displays exceptional bond strength retention after standard sterilization processes, including ethylene oxide (EtO) and Gamma Radiation (25 to 50 kiloGrays). Additionally, it maintains structural integrity through 1 cycle of a steam autoclave.

Can LOCTITE 4011 bond acidic or highly porous surfaces?
Yes. Unlike standard instant glues, LOCTITE 4011 is an ethyl-based formula optimized specifically to provide rapid fixture speeds and robust adhesion on porous or absorbent materials, such as wood, paper, leather, and fabric.

Request a Bulk Quote

Maintain uninterrupted manufacturing schedules with reliable component supply and high-volume wholesale discounts. To confirm immediate stock levels, request an official Henkel batch test report, or secure contract bulk pricing, please Contact Us directly to receive a comprehensive quote from our B2B technical sales team.