Antimony trioxide, commonly referred to as ATO, is typically a white, solid powder that can form dust in air. DOCUMENT NUMBER_ SSS-003 CATEGORY DETAIL EC Number 215-175-0 CAS Number 1309-64-4 Name Subclass 1 Antimony Trioxide (ATO) Structural Formula CHEMICAL IDENTITY PROPERTY DETAIL Physical State Solid Form Powder Color White Odor Odorless Melting Point 656°C Boiling Point 1425°C Bulk Density 5.20 g/cm3 Water Solubility Slightly Soluble PHYSICAL/ CHEMICAL PROPERTIES DOCUMENT NUMBER_ SSS-003 HEALTH EFFECTS HUMAN HEALTH SAFETY ASSESSMENT Consumer It is very unlikely that consumers would be exposed to ATO in its concentrated form because it is only sold for industrial use to make polymers and other products and is not sold directly to consumers. COMPANY CONTACT INFORMATION corporateregulatory@avient.com

The Q&A below offers insight into some of the points to consider when printing or marking applications manufactured from fluoropolymers. Collaborate with your supplier to determine which colors are available for your application. Contact us to learn how our fluoropolymer solutions can enhance your products.

© 2020, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about CORE™ Vinyl Powders, contact Avient at 1.844.4Avient (844.428.4368) or visit Avient.com. When slush molding a door panel, vinyl powder is added to a hot mold, which melts the powder to a 1 mm-thick coating, and the mold then rotates so that the melted material can fill the entire cavity. The supplier found that the vinyl powders it was using clumped in the corners of the mold during processing rather than filling the mold, causing air entrapment and generating unacceptable amounts of scrap.

Manufacturers Avient Honeywell™ Other suppliers Melt Point ( ̊C) Contact us

Types E-Glass, S-Glass. Contact your FIBER-LINE® representative for exact product details which conform to your specific requirements. °C TBD Property UOM Value Breaking Tenacity g/d 6.0 – 7.3 Specific Gravity Ratio 2.58 Elongation @ Break % 3.5 Tensile Modulus g/d 200 – 275 Moisture Regain* %

Long Glass Fiber Reinforcement Long glass fiber composites start as continuous filaments of fiber, which we melt-impregnate with thermoplastic polymer in our pultrusion process to create a high performance bond. Greater properties than short fiber/chopped glass fiber filled compounds

Amorphous resins have a melt range rather than a defined melt point (mp) and a broad glass transition temperature (Tg) range. Melting Point: Melting point is the temperature at which a crystalline polymer becomes a disordered liquid. 4. Glass Transition Temperature: Glass transition temperature is the point at which an amorphous polymer becomes hard and brittle.

For questions regarding investor relations, contact us as per below. Equiniti Trust Company 1110 Center Point Curve, Suite 101 Mendota Heights, MN 55120-4100 Phone: 1-800-401-1957 www.shareowneronline.com Investor Contacts

Melt Point ( ̊C) Contact us with your specific requirements Contact us

It is also used as an adsorbing agent in dry powder systems to enhance flow properties. PROPERTY DETAIL Physical State Solid Form Powder Color White Odor Odorless Melting Point >1700°C Boiling Point >1700°C Bulk Density Typically 50–600 g/L Water Solubility 15–68 mg SiO2/L at 20°C Self-Ignition Temperature Not combustible Flammability Non-flammable Explosiveness Non-explosive Oxidizing Properties Expected to be non-oxidizing PHYSICAL/CHEMICAL PROPERTIES EFFECT ASSESSMENT RESULT Acute Toxicity/ Oral Inhalation/Dermal Not acutely toxic after oral and dermal exposure. COMPANY CONTACT INFORMATION corporateregulatory@avient.com DOCUMENT NUMBER_ SSS-004 ENVIRONMENTAL EFFECTS No environmental classification is proposed since no adverse effects have been observed in the ecotoxicologial testing.