When reliability matters, LOCTITE® adhesives deliver. From threadlockers to sealants, LOCTITE® products are trusted across automotive, aerospace, manufacturing, plumbing, and agricultural industries for their exceptional performance and durability. Threadlockers such as LOCTITE® Blue, Red, and Green prevent loosening caused by vibration or shock, creating secure, long-lasting fastener assemblies. Resistant to chemicals, temperature changes, and corrosion, LOCTITE® keeps your equipment running smoothly in even the toughest conditions.
Fast, Strong, and Versatile – LOCTITE® 401
LOCTITE® 401 Instant Adhesive is a medium-viscosity, general-purpose adhesive that delivers rapid, high-strength bonding for a wide variety of materials—including porous surfaces. Designed for challenging applications that demand uniform stress distribution and excellent tensile or shear strength, LOCTITE® 401 is your go-to solution for both quick repairs and precision assembly work.
From metals and plastics to wood, leather, and fabric, this versatile adhesive bonds similar or dissimilar materials with speed and strength. It’s ideal for small emergency repairs, on-site fixes, and assembling difficult-to-bond materials—especially when used with LOCTITE® SF 770 primer.
- Universal instant adhesive: Bonds a wide range of materials.
- Fast curing: Perfect for time-critical repairs.
- High strength: Ideal for close-fitting parts.
- Multi-material compatibility: Suitable for metals, rubber, wood, ceramics, cardboard, and most plastics.
- Effective on porous substrates: Works on paper, leather, and fabric.
- Enhanced performance: Use with LOCTITE® SF 770 primer for challenging surfaces.
When seconds count and performance is non-negotiable, trust LOCTITE® 401 to get the job done.













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