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Tableau tinuvin_292

Tinuvin 292

Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate and
Methyl 1,2,2,6,6-pentamethyl-4-piperidyl sebacate

TINUVIN 292 is a liquid hindered amine light stabilizer especially developed for coatings. It is an almost pure mixture of the two active ingredients below. It is this combination that keeps the product liquid, unlike the pure diester which tends to solidify, even at room temperature. The efficiency of TINUVIN 292 provides significantly
extended life time to coatings by minimizing paint defects such as cracking and loss of gloss.

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)
· water borne acrylics
· phenolics, vinylics
· radiation curable acrylics

The dispersion of TINUVIN 292 in water borne coatings may be facilitated by dilution with a water miscible solvent such as butylcarbitol.
The performance of TINUVIN 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 colour 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 TINUVIN 292 with paint ingredients such as acid catalysts should be carefully evaluated.

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