Technical Data Sheet
Chemical Name: The active substance is a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-sebacate and methyl-1,2,2,6,6-pentamethyl-4-piperidyl sebacate
Molecular Weight: 508.8
CAS NO.: 41556-26-7 82919-37-7
Chemical structure:
and
Specification:
| Item | Index |
| Appearance | Colorless to light-yellow liquid |
| Assay(GC) | >96% |
| Freezing point | ≤-10℃ |
| Water | ≤ 0.5% |
| Ash Content | <0.1% |
| Transmittance | 425nm>98% ; 500nm>99% |
Solubility 20℃(g/100g Solvent):
| Solvent | Solubility |
| Butanol | >50 |
| Solvesso 150# | >50 |
| Solvesso 100# | >50 |
| Xylene | >50 |
| Ethylene glycol | >50 |
| Butanone | >50 |
| Water | Insoluble |
Solubility in water of LeSORB – 292 can be achieved by dissolving in aqueous solvent such as butyl carbitol.
Characteristics and Uses:
LeSORB UV -292 mainly use in paint, coatings, printing ink, polyurethane paint. This product can effectively prevent the coating to maintain shiny in the sun exposure.
Avoiding cracking and produce spots, burst and surface stripping, thus greatly improving coating life. LeSORB – UV 292 is a synergistic effect with UV absorber.
Applications :
LeSORB – 292 is recommended for applications such as :
- construction adhesives and sealants
- automotive coatings (non-acid catalyzed)
industrial coatings
- wood stains or do-it-yourself paints
- radiation curable coatings (with no loss of cure speed)
Its high efficiency has been demonstrated in coatings based on a variety of binders such as:
one- and two-component polyurethanes (water and solvent)
- thermoplastic acrylics (physical drying)
- thermosetting acrylics, alkyds and polyesters
- alkyds (air drying)
- waterborne acrylics
- phenolics, vinylics
- radiation curable acrylics
- exterior construction coatings (roofing, etc.)
The dispersion of LeSORB – 292 in waterborne coatings may be facilitated by dilution with a water- miscible solvent such as butylcarbitol.
The performance of LeSORB – 292 can be significantly improved when used in combination with a UV absorber such as recommended below. These synergistic combinations give coatings superior protection against gloss reduction, cracking, blistering, delamination and color change.
The light stabilizers may be added in two-coat automotive finishes to the base and clear coat. However, according to our experience the optimum protection is usually achieved by adding the light stabilizers to the topcoat.
Possible interactions of LeSORB UV 292 with paint ingredients such as acid catalysts should be carefully evaluated.
The amount ofLeSORB UV 292 required for optimum performance should be determined in laboratory trials covering a concentration range.
Recommended Concentration :
Clear coats & 0.5 – 2 % : LeSORB UV 292
One-coat solid shades: 0.5 – 2 % : LeSORB UV 292
Storage and Package:
25 kg plastic drum, 200 kg galvanized buckets or 1000 kg IBC drum.