UV-P Benzotriazole UV Absorber (Drometrizole)

UV-P (drometrizole, CAS 2440-22-4, formula C13H11N3O) is a hydroxyphenyl-benzotriazole UV absorber used in coatings, adhesives, and thin plastic parts. It absorbs ultraviolet light strongly across the range that degrades polymers and converts it to harmless heat, protecting the binder, the pigment, and the substrate. RawSource supplies UV-P in bulk against your grade and volume.

RawSource supplies UV-P as a technical benzotriazole UV absorber comparable to Tinuvin P (BASF). RawSource is an independent distributor and is not affiliated with, endorsed by, or sponsored by the brand owners; the brand names are used only to identify the comparable commercial grade.

UV-P is the lowest-molecular-weight member of the benzotriazole absorber family, which makes it soluble and easy to disperse but more volatile than heavier grades. It suits coatings and thin sections where processing temperatures are moderate; for high-heat plastics, a heavier benzotriazole such as UV-234 or UV-329 holds up better.

Applications

Coatings and inks

In solvent- and water-borne coatings and in inks, UV-P dissolves readily and absorbs ultraviolet light in the film, protecting the resin and any color below it. It is a long-established choice for clear and pigmented coatings.

Adhesives and sealants

In adhesives and sealants exposed to daylight, UV-P screens ultraviolet light that would otherwise embrittle the bond line. It is compounded into the formulation at low loading.

Thin plastic parts

In films, fibers, and thin molded sections processed at moderate temperature, UV-P provides ultraviolet protection where its solubility is an advantage and its volatility is not a limitation.

Host polymers and typical use

UV-P 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 UV-P 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

UV-P is an industrial UV absorber for coatings, adhesives, and plastics. It can be classified as toxic to aquatic life and as a skin sensitizer, and as a low-molecular-weight benzotriazole it sits in the sub-class under group review by several regulators, so keep it out of drains and waterways and follow the Safety Data Sheet for the exact classification and handling.

Bulk UV-P Supply from RawSource

RawSource supplies UV-P 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 UV-P 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 UV-P quote

To buy UV-P 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.