Brief Introduction
LOCTITE AA 330 is a high-performance structural adhesive designed as a convenient no-mix formula to streamline bonding tasks across industries. As a premium acrylic adhesive, it specializes in bonding metal, wood bonding, and plastics bonding, making it a versatile choice for both industrial assembly and commercial repairs. Unlike complex two-part adhesives, it requires no mixing—only a compatible activator (such as LOCTITE SF 7387) to achieve strong, durable bonds. Its pale-yellow color and medium-to-high viscosity ensure easy application without excessive flow, making it suitable for intricate parts or small components. Whether used to assemble machinery, repair furniture, or fix plastic enclosures, LOCTITE AA 330 delivers consistent performance that withstands daily wear and moderate environmental stress.
Parameter | Condition | Material | Value | Unit |
Working temperature | - | - | -55 to +100 | °C |
Color | - | - | Amber | - |
Time to full strength | Gap 0.05mm, 22°C | Steel | 24 | hours |
Gap 0.05mm, 22°C | Aluminum | 24 | hours |
Time to initial strength | Gap 0.05mm, 22°C | Steel | 2.5 | minutes |
Gap 0.05mm, 22°C | Aluminum | 8 | minutes |
Lap shear strength (ISO 4587) | 24h@22°C, activator 7387TM (one side) | Mild steel (sandblasted) | 15-30 | N/mm² |
24h@22°C, activators 7387TM/7386TM (both sides) | Soft steel (sandblasted) | 216.5 | N/mm² |
Tensile strength (ISO 6922) | 24h@22°C, activator 7387TM (one side) | Soft steel (sandblasted) | 12-22 | N/mm² |
Viscosity | 25°C | Activator LOCTITE 7388 | 1.5 | mPas (cP) |
Fixed time (ISO 4587) | LOCTITE 330 covered by PVC, activator 7388 (one side) | - | 65-105 | seconds |
Shear strength (ISO 4587) | 24h@22°C, activator 7388 (one side), Gap 0mm | Steel (shot peened) | 17 | N/mm² |
24h@22°C, activator 7388 (one side), Gap 0.5mm | Steel (shot peened) | 7 | N/mm² |
Core Features
No-Mix Application for Efficiency
The no-mix formula eliminates the need for measuring or blending components, reducing application time and minimizing errors. This feature is ideal for users seeking quick, hassle-free bonding without specialized training.
Strong Impact Resistance
Engineered with impact resistance in mind, LOCTITE AA 330 maintains bond integrity even when subjected to vibrations or sudden shocks. Critical for parts in high-use equipment like tool handles or gear housings.
Multi-Substrate Compatibility
Beyond bonding metal, it adheres reliably to wood, plastics (PVC, ABS), and even ceramics. This multi-material bonding capability eliminates the need for multiple adhesives, cutting inventory costs for businesses.
Activator-Driven Curing
To unlock full bond strength, the adhesive requires a compatible activator (e.g., LOCTITE SF 7387 or LOCTITE SF 7386). Activators accelerate curing, allowing faster project completion without compromising durability.
Wide Service Temperature Range
Its broad service temperature range ensures bonds remain stable in both cold and moderate heat environments, making it suitable for indoor and outdoor applications.
Typical Uses
Industrial Machinery Assembly
In manufacturing, LOCTITE AA 330 bonds metal components like instrument casings, gear housings, and machine brackets. Its impact resistance ensures long-term reliability in high-stress equipment.
Furniture & Woodworking
For wood bonding, it creates invisible, strong bonds in furniture assembly. Perfect for joining wooden frames, table legs, or decorative accents. It works with both softwoods and hardwoods without damaging the material.
Plastic Component Manufacturing
In consumer goods production, it excels at plastics bonding, assembling parts like electronic enclosures, toy components, and automotive interior plastics. Its viscosity prevents overflow onto visible surfaces.
Maintenance & Repair
It is a go-to solution for repairing damaged metal, wood, or plastic parts. Such as fixing cracked machinery panels, reattaching loose wood trim, or mending plastic containers.
Precautions
Surface Preparation: Ensure all bonding surfaces are clean, dry, and free of oil, grease, or debris. Contaminants weaken bonds or block proper curing.
Activator Storage: Store activators in a cool, dry place away from direct sunlight. Avoid skin/eye contact and wear gloves during application.
Ventilation: Use the adhesive in well-ventilated areas to avoid inhaling fumes. In enclosed spaces, use exhaust fans or respiratory protection.
Curing Patience: Allow full curing before subjecting bonds to stress. Rushing curing reduces bond strength.
Waste Disposal: Dispose of unused adhesive and containers per local regulations—do not pour excess into drains or soil.
FAQ
What activator pairs best with LOCTITE AA 330?
A1: LOCTITE SF 7387 or LOCTITE SF 7386 activators are recommended. They ensure fast, consistent curing and maximize bond strength across all compatible substrates.
Can it bond non-metallic materials like ceramics?
Yes—beyond bonding metal, wood, and plastics, it adheres to ceramics and ferrites, thanks to its multi-material bonding capability.
Is it suitable for outdoor use?
Yes, its service temperature range and resistance to humidity make it ideal for outdoor applications like bonding outdoor furniture or small metal fixtures.
How do I remove uncured excess adhesive?
Wipe uncured adhesive with a cloth dampened with a solvent like acetone. Cured adhesive may require sanding (depending on the substrate).
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