(Liquid Hindered Amine Light Stabilizer)

Characterization: HALS-292 is a liquid hindered amine light stabilizer which is widely iused to improve the weather ability of a variety of polymers.

Chemical Name: Bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate +1,2,2,6,6-pentamethyl-4- piperidyl sebacate

CAS Number 41556-26-7 and 82919-37-7

Structure:

Applications: HALS-292 is a highly effective liquid stabilizer used for a wide range of polymers and applications including polyurethanes, sealants, adhesives, elastomers, unsaturated polyesters, acrylics, vinyl, polymers (PVB, PVC), styrene homo- and copolymers, polyolefins, liquid color concentrates, and other organic substrates.

Features/Benefits: HALS-292 provides outstanding performance and its liquid form provides ease of handling and incorporation. It is compatible in a wide array of substrates. HALS-292 has low volatility and is thermally stable.

Guidelines for use: Use levels for HALS-292 range between 0.1%, depending on the substrate and performance requirements. Synergistic may be obtained when HALS-292 is used with a ultraviolet light absorber. Performance data are available in many substrates.

For optimum effectiveness, adequate base stabilization (e.g. antioxidants/ processing stabilizers) of the polymer is necessary to prevent thermal oxidation. Sulfur containing stabilizers such as thioesters have e sometimes been found to have a negative effect on the performance of HALS-292. Such influences should be evaluated in specific customer testing. HALS-292 may crystallize during storage below 0°C , however the product can be easily liquefied by slight warming.