Permabond 801 Instant Adhesive-Fast-Set Temperature-Resistant Thin General Purpose

Product Name

Permabond 801 Instant Adhesive-Fast-Set Temperature-Resistant Thin General Purpose

Brief Description

Permabond 801 is a low viscosity, fast-setting, modified ethyl cyanoacrylate (CA) instant adhesive. It is specifically formulated for applications that require high-temperature resistance. This single-component adhesive polymerizes rapidly when pressed into a thin film between parts, initiated by surface moisture, forming strong bonds quickly on a variety of materials. Its properties make it particularly suitable for high-speed production lines.

Popular Applications & Uses

• Bonding a wide range of materials including rubber, metals, and plastics.
• Applications requiring resistance to elevated temperatures.
• Ideal for high-speed production and assembly lines due to its rapid curing.
• Wicking into pre-assembled components or for bonding close-fitting parts due to its low viscosity.
• Speaker bonding.
• Electric motor tacking and bonding.
• Moisture-resistant encapsulation for Printed Circuit Boards (PCBs).

Industries that Commonly Use It

• General Manufacturing
• Metal Fabrication
• LED/Electronics
• Plastic Fabrication
• Automotive Service/Repair
• Transportation/ Specialty Vehicle
• Distributers & Resellers
• Industrial Supply

Special and Unique Features

• **High Temperature Resistance:** Engineered to perform in applications exposed to elevated temperatures.
• **Rapid Curing:** Achieves handling strength in seconds, facilitating fast assembly processes.
• **Low Viscosity:** A thin, wicking-grade formula that penetrates small gaps effectively.
• **Single Component:** Requires no mixing, simplifying application and reducing waste.
• **100% Reactive:** Contains no solvents, ensuring a solid bond with minimal shrinkage.
• **Moisture Cured:** Curing is initiated by moisture adsorbed on the surface of the parts.

Key Properties

• **Chemical Composition:** Modified Ethyl Cyanoacrylate
• **Appearance:** Colourless / Clear / Transparent Liquid
• **Viscosity @ 25°C:** 10-15 mPa.s (cP)
• **Specific Gravity:** 1.1
• **Maximum Gap Fill:** 0.05 mm (0.002 in)
• **Fixture/Handling Time:** 10-15 seconds (on Steel, Buna N Rubber, Phenolic)
• **Full Strength:** 24 hours
• **High Temperature Resistance:** Up to 82°C (180°F) continuous, with brief excursions up to 204°C (400°F) for processes like paint baking or wave soldering.
• **Low Temperature Resistance:** -55°C (-65°F)
• **Shear Strength (Steel):** 19-23 N/mm² (2800-3300 psi)
• **Hardness (ISO868):** 85 Shore D
• **Dielectric Strength:** 25kV/mm
• **Chemical Resistance:** Good resistance to water, ethanol, and gasoline. Not recommended for continuous contact with strong oxidizing materials and polar solvents, though it will withstand a solvent wash.

Surface Compatibility

• **Excellent Adhesion To:** Rubber (e.g., Buna N), Metals (e.g., Steel, Aluminum, Copper alloys), and Plastics (e.g., ABS, PVC, Polycarbonate, Phenolic).
• **Porous Surfaces:** Can be bonded effectively, often benefiting from the use of a Permabond activator.
• **Difficult-to-Bond Plastics:** For low surface energy plastics such as polypropylene, polyethylene, PTFE, or silicone, pre-treatment with Permabond Polyolefin Primer (POP) is recommended.
• **Surface Preparation:** Surfaces should be clean, dry, and grease-free. Light abrasion may be beneficial for some metals.

Known backups / known substitutes

• **Permabond 802:** A close substitute within the Permabond range.
• **Other Permabond Cyanoacrylates:** Such as Permabond 101, 105, 240, or 920, which offer varying viscosities or specific substrate compatibilities.
• **Adhesive Systems (ASI) HT100:** Identified as a close substitute.
• **General Cyanoacrylate Adhesives:** From other manufacturers like 3M (e.g., 3M CA3, 3M CA8).

Comparison Note

Permabond 801 distinguishes itself as a low-viscosity, fast-setting ethyl cyanoacrylate adhesive specifically engineered to provide robust bonds in applications demanding high-temperature resistance. While many instant adhesives offer rapid curing, 801's combination of thinness (allowing for wicking into tight assemblies) and its enhanced thermal performance sets it apart. This makes it a preferred choice for manufacturers seeking efficiency and durability in challenging environments, particularly where traditional cyanoacrylates might fall short on heat resistance. Its ability to bond a diverse range of common industrial materials further solidifies its position as a versatile general-purpose adhesive with a specialized edge.