Adhesive n butyl cyanoacrylate

N-Butyl Cyanoacrylate is a medical-grade or industrial-grade adhesive known for its biocompatibility and slower curing speed compared to methyl-based versions. You must verify the purity level (typically >98%), viscosity (measured in cps), and setting time. For medical applications, ensure it is monomer-stabilized to prevent premature polymerization and has a low exothermic reaction to avoid tissue damage.

If the adhesive is for medical use (wound closure or embolic agents), it must comply with ISO 13485 quality management systems. Depending on the target market, look for CE Marking (EU) or FDA 510(k) clearance (USA). For industrial use, ensure it meets REACH and RoHS standards to guarantee the absence of restricted hazardous substances.

N-Butyl Cyanoacrylate is highly sensitive to moisture and temperature. It typically requires cold storage (2°C to 8°C) to maintain a shelf life of 12 to 24 months. When sourcing, confirm the supplier's cold-chain logistics capabilities and request hermetically sealed packaging (such as aluminum tubes or amber glass vials) to prevent light-induced polymerization.

In the medical field, it is used for topical wound closure, surgical adhesives, and vascular embolization. In industrial settings, it is preferred for bonding plastics, rubbers, and metals where a flexible, high-strength bond is required. Its hydrophobic nature makes it excellent for environments exposed to moisture.

Cyanoacrylates are often classified as Class 9 Dangerous Goods (UN3334) for air transport. You must ensure the supplier provides a valid MSDS (Material Safety Data Sheet) and a Transport of Goods Safety Identification Report. For smooth customs clearance, use a freight forwarder experienced in hazardous materials (HazMat) handling.

Focus on volume-based pricing tiers and request a Certificate of Analysis (COA) for every batch. Since this is a high-spec chemical, negotiate for sample testing (5-10g) before committing to bulk. Ask for OEM/Private Labeling options if you are a distributor, as many top-tier manufacturers on Made-in-China.com offer customized sterile packaging.

Utilize Secured Trading Services on Made-in-China.com to protect your payment until delivery. Always hire a third-party inspection agency (like SGS or Intertek) to perform a pre-shipment inspection, specifically checking for leakage, vacuum seal integrity, and batch consistency.

The primary risk is impurities or high acid stabilizer content, which can lead to brittleness, skin irritation, or failed adhesion. Low-cost suppliers may also lack temperature-controlled warehousing, resulting in products that arrive already polymerized or with a significantly shortened shelf life.