RIASORB® UV-329FF

Identification & Functionality

Chemical Family

Benzotriazoles

Chemical Name

Octrizole

Plastics & Elastomers Functions

Light Stabilizer,

Stabilizer,

UV Absorber

CAS No.

3147-75-9

EC No.

221-573-5

Technologies

Plastics

Product Families

Plastics — Polymer Additives

Antioxidants & Stabilizers

Chemical Structure

Molecular Formula

C₂₀H₂₅N₃O

Features & Benefits

Materials Features

Free Flowing,

Good UV Protection,

Good Weather Stability,

Outdoor Durability

Applications & Uses

Compatible Polymers & Resins

Polyamides,

Polycarbonates (PC),

Polyurethanes (PU)

Plastics & Elastomers End Uses

Film

Plastics & Elastomers Processing Methods

Injection Molding

Use Level

0.10 - 1%

Applications

• RIASORB^® UV-329FF is an effective light stabilizer for a variety of plastics and other organic substrates.
• RIASORB^® UV-329FF protects polymers from UV radiation, helping to preserve the original appearance and physical integrity of molded articles, films, sheets, and fibers during outdoor weathering.
• The use levels of RIASORB^® UV-329FF range between 0.10 and 1.0%, depending on substrate and performance requirements of the final application. The product can be used alone or in combination with other additives such as light stabilizers (hindered amines), antioxidants, and other functional stabilizers and additives.
• The use of RIASORB^® UV-329FF in combination with HALS is particularly noteworthy in that a synergistic performance is often observed.

Properties

Physical Form

Granules,

Solid

Appearance

White to slightly yellow granule

Typical Properties

	Value	Units	Test Method / Conditions
Molecular Weight	323	—	—

Solubility

	Value	Units	Test Method / Conditions
Benzene (at 20℃)	32	g/100g	—
Chloroform (at 20℃)	37	g/100g	—
Cyclohexane (at 20℃)	15	g/100g	—
Ethyl Acetate (at 20℃)	15	g/100g	—
Ethyl Alcohol (at 20℃)	0.6	g/100g	—
Methylene Chloride (at 20℃)	38	g/100g	—
n-Hexane (at 20℃)	6	g/100g	—
Water Content (at 20℃)	max. 0.01	g/100g	—

Regulatory & Compliance

Certifications & Compliance

ISO 14001,

OHSAS

Technical Details & Test Data

UV Spectra

10 mg/L in Chloroform

Safety & Health

Handling & Safety

The use of proper protective equipment is recommended. Excess exposure to the product should be avoided. Wash thoroughly after handling.

Packaging & Availability

Packaging Type

Bags

Storage & Handling

Shelf Life

24 Months

Storage Conditions

Store the product in a cool, dry, well-ventilated area away from incompatible materials, keep tightly closed. With proper storage, shelf life of this product is 24 months from the manufacture date