LOCTITE 499
Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg

Main features
- Non-Sag Cyanoacrylate Gel
- One-Component Adhesive System
- Vertical/Overhead Adhesive Applications
Product Description
LOCTITE® 499™ Gel is a one-component, medium-to-high viscosity ethyl cyanoacrylate adhesive formulated in a non-sag gel consistency for applications requiring precise placement and controlled dispensing. The adhesive cures rapidly in the presence of atmospheric moisture and is suitable for bonding metals, plastics, elastomers and porous materials. Its gel form minimizes running and dripping, making it particularly effective for vertical and overhead bonding applications. The product combines the fast fixture characteristics of cyanoacrylates with superior application control for assembly, maintenance and repair operations.
Key Features & Benefits
- Non-sag gel consistency for controlled application.
- One-component adhesive requiring no mixing.
- Rapid moisture-cure cyanoacrylate technology.
- Suitable for vertical and overhead applications.
- Bonds metals, plastics, elastomers and porous materials.
- Minimizes adhesive flow and migration.
- Provides accurate placement in assembly operations.
Recommended Applications
- Vertical and overhead bonding applications.
- General industrial assembly and maintenance.
- Plastic, metal and rubber bonding.
- Repair operations requiring non-drip adhesive placement.
- Controlled dispensing applications on complex geometries.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Thermal Properties
Additional Information
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Technology | Cyanoacrylate Gel | — | Instant adhesive technology |
| Chemical Type | Ethyl 2-Cyanoacrylate | — | Reactive monomer adhesive |
| Appearance | Colorless to Straw Gel | — | Uncured material |
| Physical Form | Gel | — | Non-sag formulation |
| Density | 1.10 | g/cm³ | 23.9°C |
| Flash Point | 80 - 93 | °C | Tagliabue Closed Cup |
| Storage Temperature | 2 - 8 | °C | Recommended storage conditions |
| Cure Mechanism | Humidity Cure | — | Atmospheric moisture activated |
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Boiling Point | >149 | °C | Safety Data Sheet |
| Auto-Ignition Temperature | 485 | °C | Safety Data Sheet |
| Solidification Temperature | <-25 | °C | Safety Data Sheet |
| Polymerization Type | Rapid Exothermic | — | Triggered by water, amines, alkalis and alcohols |
| Acute Oral Toxicity (LD50) | >5,000 | mg/kg | Rat, Ethyl Cyanoacrylate |
| Acute Dermal Toxicity (LD50) | >2,000 | mg/kg | Rabbit, Ethyl Cyanoacrylate |
| VOC Content | <3 | % | 2010/75/EC |
| Transport Classification | IATA Class 9 | — | UN 3334, Cyanoacrylate Ester |
| Biodegradability | 57% | Degradation | 28 Days, OECD 301D |
| Mobility in Soil | Immobile When Cured | — | Environmental assessment |





















