LOCTITE SI 598

The operating temperature range for standard Loctite anaerobic threadlockers / thread sealants / gasketing adhesives is -55°C to +150°C. High-performance anaerobic grades, or alternative technologies such as silicones, can offer significantly improved temperature resistance depending on the specific application requirements. Consult Henkel's online product resources or contact our technical teams for further information .

Henkel has a number of products available with varying levels of NSF® and WRAS® approval, amongst others. Please contact the Henkel sales or technical teams with your requirements.

All adhesives are compatible with metal substrates although bond strength and durability will vary depending on the technology selected. Anaerobic adhesives may cause stress-cracking in some sensitive polymers and therefore should generally be avoided on plastic parts. Consult Henkel technical teams for further advice as needed.

For flange sealing applications, anaerobic adhesives are preferable when high strength is required (usually for rigid machined parts rather than pressed/flexible flanges); when high chemical/solvent resistance is required; and on metal components where there is limited moisture or exposure to the environment. Silicones are recommended where there are large gaps, open/exposed bond areas, or when high flexibility or extremely high temperature resistance (generally in excess of 150°C) is required.

Both silicones and SMP adhesives provide excellent flexibility and gap-filling properties together with high adhesion to a wide range of substrates, making them ideal for elastic bonding & sealing applications. Silicones have superior thermal resistance for high-temperature applications, whereas SMP adhesives are suitable for applications that require over-painting. There are a range of properties available for each technology type. Please speak with a Henkel representative regarding your application to determine the best available grade.

LOCTITE® silicone adhesives can be used for such applications. High temperature resistance is a necessity and materials like LOCTITE® SI 5920 or LOCTITE® SI 5990 can be considered.

All necessary H&S measures and PPE (personal protection equipment) requirements can be found on the product material safety data sheet, all of which are available via the Henkel website.