Benzophenone and benzotriazole chemistries are traditional UV stabilizers, characterized as absorbers. The protection mechanism of UV absorbers is based on absorbing the harmful UV radiation then dissipating without leading to photo-oxidation (i.e. dissipation as heat). 3V Absorbers can be used in a variety of polymers, including polypropylene, polyethylene, polystyrene, nylon, PVC, PET and others, and can be used alone or in combination with other UV stabilizers, i.e. HALS.

Benzophenone

Benzophenones absorb over the wavelength range from 260 to 350 nm. They do not absorb in the visible region. The material offers protection in both thick and thin sections and protection is optimized when used in unpigmented or lightly pigmented formulations. Both the UV protection and cost performance ratio of this product can be improved when used in combination with a hindered amine light stabilizer (HALS) such as UVASORB HA 88. This is especially true when stabilizing thin sections.

Benzotriazole

Benzotriazoles offer high and broad absorption ranges from 270 to 400 nm and are compatible with a broad range of polymer systems and additives. They are effective in preventing Gloss reduction, Cracking, Blistering, Color change. Both the UV protection and cost performance ratio of this product can be improved when used in combination with a hindered amine light stabilizer (HALS) such as UVASORB HA 88. This is especially true when stabilizing thin sections.

Bisphenylene

Bisphenylene derivatives; its high temperature stability make it especially suitable for engineering polymer such as polycarbonate and polyesters.

Plastic Resins

Benzotriazole UVASORB S26
Benzophenone UVASORB 3C
Benzotriazole UVASORB S28
Benzoxazinone UVASORB 638
Benzotriazole UVASORB S34
Benzotriazole UVASORB SV
Acrylic yes no yes yes no yes
Cellulose no no no no no yes
Elastomers no no no yes no yes
Epoxy Resins no yes no no no yes
Nylon no no no yes yes no
PBT yes no no no no no
PET no no no yes no no
PMMA no no no yes no yes
Polyacetal no no yes yes yes yes
Polycarbonate no no no yes yes no
Polyester no yes no yes yes no
Polyethylene yes yes yes no no no
Polypropylene yes yes yes no no no
Polyurethane yes no yes no no no
Polyvinylidene chloride no no no yes no no
PVC no yes yes no no yes
Styrenic Polymers yes yes yes no no yes
Unsaturated Polyester yes no yes yes no yes
Urea Melamine no no no no no yes
Benzotriazole UVASORB S26
Benzophenone UVASORB 3C
Benzotriazole UVASORB S28
Benzoxazinone UVASORB 638
Benzotriazole UVASORB S34
Benzotriazole UVASORB SV
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