Industrial Coatings, Printing & Packaging
Technical Data Sheet
Tinuvin® P
Product Description Tinuvin P is an ultraviolet light absorber (UVA) of the hydroxyphenyl benzotriazole class,
imparting good light stability to a wide variety of polymers.
Key Features & Benefits - Strong absorption of UV radiation in the 300 – 400 nm range
- Photo-stability over long periods of light exposure
Chemical Structure Phenol, 2-(2H-benzotriazol-2-yl)-4-methyl
Properties
Typical Properties CAS No: 2440-22-4
Appearance slightly yellow powder
Molecular weight g/mol 225
Melting range °C 128 – 132
Flash point °C 205
Specific gravity (20°C) g/ml 1.38
Vapor pressure (20°C) Pa 1.5 x 10-4
Solubility at 20°C (g/100 g solution):
Acetone 3
Benzene 7
Chloroform 13
Cyclohexane 1
Ethyl acetate 3.5
n-Hexane 0.8
Methanol 0.2
Water < 0.01
These typical values should not be interpreted as specifications.
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Absorbance spectrum
(10 mg/l, Chloroform)
Tinuvin P exhibits strong absorbance in the 300 – 400 nm region and minimal absorbance in the
visible region (> 400 nm) of the spectrum. The absorption maxima are at 301 nm and 341 nm (ε =
16.150 l/mol · cm) in chloroform solution.
Applications
Tinuvin P provides ultraviolet protection in a wide variety of polymers including styrene homo- and
copolymers, engineering plastics such as polyesters and acrylic resins, polyvinyl chloride, and other
halogen containing polymers and copolymers (e.g. vinylidenes), acetals and cellulose esters.
Elastomers, adhesives, polycarbonate blends, polyurethanes, and epoxy materials also benefit from
the use of Tinuvin P.
Tinuvin P has a high degree of photostability over long periods of light exposure. The high
absorbance combined with photostability and the ability to release absorbed energy in non-
sensitizing ways make Tinuvin P an effective stabilizer against ultraviolet light.
Recommend Concentrations The use levels of Tinuvin P range between 1 - 3 weight%, depending on substrate and performance
requirements of the final application. Tinuvin P can be used alone or in combination with other
functional additives such as antioxidants (hindered phenols, phosphites) and HALS light stabilizers,
where often a synergistic performance is observed.
Tinuvin P may react with various heavy metal ions to form salts or complexes. For example, if
Tinuvin P comes into contact with iron or cobalt ions, colored complexes are formed. Reducing and
oxidizing agents used in polymerization and curing processes have no effect on the stability of
Tinuvin P.
Safety
General The usual safety precautions when handling chemicals must be observed. These include the
measure described in Federal, State and Local health and safety regulations, thorough ventilation
of the workplace, good skin care, and wearing of protective goggles.
Safety Data Sheet All safety information is provided in the Safety Data Sheet for Tinuvin P.
Storage
Please refer to the “Handling and Storage of Polymer Dispersions” brochure.
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Important
The descriptions, designs, and data contained herein are presented for your guidance only.
Because there are many factors under your control which may affect processing or application/use
it is necessary for you to make appropriate tests to determine whether the product is suitable for
your particular purpose prior to use. NO WARRANTIES OF ANY KIND, EITHER EXPRESS OR
IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, ARE MADE REGARDING PRODUCTS DESCRIBED OR DESIGNS,
OR INFORMATION SET FORTH, OR THAT THE PRODUCTS, DESIGNS, OR DATA MAY BE
USED WITHOUT INFRINGING THE INTELLECTUAL PROPERTY RIGHTS OF OTHERS. IN NO
CASE SHALL THE DESCRIPTIONS, DATA OR DESIGNS PROVIDED BE PRESUMED TO BE A
PART OF OUR TERMS AND CONDITIONS OF SALE. Further, you expressly understand and
agree that the descriptions, designs, and data furnished by BASF hereunder are given gratis and
BASF assumes no obligation or liability for same or results obtained from use thereof, all such being
given to you and accepted by you at your risk.
Tinuvin is a registered trademark of BASF Group.
© BASF Corporation, 2019
BASF Corporation is fully committed to the Responsible Care®
initiative in the USA, Canada, and Mexico.
For more information on Responsible Care® go to:
U.S.: www.basf.us/responsiblecare_usa
Canada: www.basf.us/responsiblecare_canada
México: www.basf.us/responsiblecare_mexico
BASF Corporation
Dispersions and Resins
11501 Steele Creek Road
Charlotte, North Carolina 28273
Phone: (800) 251 – 0612
Email: CustCare-Charlotte@basf.com
Email: edtech-info@basf.com
www.basf.us/dpsolutions
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