Liquid Benzotriazole UV Absorber (CAS 104810-48-2)

This liquid benzotriazole UV absorber (CAS 104810-48-2) is supplied as a polyethylene-glycol ester of a hydroxyphenyl-benzotriazole propionic acid. Being liquid, it blends easily into solvent- and water-borne coatings and clearcoats, where it absorbs ultraviolet light in the film to protect the binder and the substrate. RawSource supplies this liquid absorber in bulk against your grade and volume.

Because this absorber is an ester of a glycol rather than a single crystalline compound, it is a substance of variable composition, so specify the grade by its Certificate of Analysis rather than by structure alone. Its liquid form is the advantage in coatings: it disperses without a separate dissolution step and resists blooming in cured films.

Applications

Automotive and industrial clearcoats

In clearcoats, this liquid benzotriazole absorbs ultraviolet light at the surface to protect the basecoat and substrate from fading and delamination. Its liquid form blends cleanly into solvent-borne clear systems.

Waterborne and solvent-borne coatings

In pigmented and clear coatings of both types, the liquid benzotriazole provides ultraviolet screening that is easy to add as a liquid, protecting the resin and any color below it.

Wood and plastic coatings

In coatings over wood and plastic, the liquid benzotriazole screens ultraviolet light to slow yellowing and surface degradation of both the film and the coated material.

Host polymers and typical use

The absorber is dispersed into the polymer or coating during compounding or formulation, where it absorbs ultraviolet light before it can break polymer chains, fade pigments, or dull the surface. The systems below are where it is most often specified.

Typical use levels for polymer UV absorbers fall in the 0.1 to 1.0 percent range, set by part thickness, expected outdoor exposure, and the co-stabilizer package (commonly a hindered-amine light stabilizer). Confirm loading on the bench and the exact specification on the Certificate of Analysis for each lot.

Handling and regulatory status

This benzotriazole ester is an industrial liquid UV absorber for coatings. Depending on grade it can be classified for effects from repeated exposure, as a skin sensitizer, and as hazardous to aquatic life, so use appropriate protective equipment, keep it out of drains and waterways, and follow the Safety Data Sheet.

Bulk Liquid Benzotriazole UV Absorber Supply from RawSource

RawSource supplies this liquid benzotriazole UV absorber in bulk to coatings, plastics, and polymer compounding buyers and their purchasing teams. We source to your target grade, purity, and physical form across domestic and import channels, so we match specification, lead time, and landed cost to your program. Multiple qualified producers make this absorber to a common identity, which keeps supply competitive and available on demand.

Every lot ships with a Certificate of Analysis (CoA) and the current Safety Data Sheet (SDS). We source to order rather than carry fixed stock, so pricing and availability are confirmed by quote. Send your grade, annual volume, and any specification limits for a current bulk price.

Request a bulk liquid benzotriazole UV absorber quote

To buy this UV absorber in bulk from RawSource, send your target grade, physical form, packaging, destination, and any specification requirement, and we return a current bulk quote. A CoA and SDS accompany every shipment. Request a quote to get started.