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DMSO in Paint Stripping products A safe alternative to NMP Gaylord Chemical www.gaylordchemical.com Contents 1. Introduction – Gaylord Chemical 3. Comparison to NMP- Corporation based products – Relative performance 2. Product Basics – Safety – Physical – Regulatory aspects Properties – Safety and Handling – Product specification – Formulation! Your Global Leader for DMSO Solutions! Gaylord Chemical Corporation • Manufacturer of Dimethyl Sulfide, Dimethyl Sulfoxide, and Dimethyl Sulfone • Unique Industrial Process Utilizes Biorenewable Resources • Reliable Producer of DMSO grades for electronic, industrial, pharmaceutical, and healthcare applications since 1961 Manufacturing facility in Bogalusa, Louisiana, USA. Your Global Leader for DMSO Solutions! 2. Dimethyl Sulfoxide Product Basics Gaylord Chemical Corporation…. • ISO-9001:2000 Certified Manufacturing Facility • Has extensive experience in shipping and handling of DMSO • Supports new DMSO applications with a dedicated technical service team and applications lab •Can provide an extensive amount of safety and use data •Offers DMSO in various product grades and packaging sizes (bottles, 500 lb net wt. drums, bulk) Your Global Leader for DMSO Solutions! Product Basics Simple Physical Properties Hansen Parameter Solvent Map Molecular wt 78.13 Methanol Ethanol Amine Boiling Point (760 mm Hg) 189 C (372 F) 1 0 Melting Point 18.5 C (72 F) IPA Vapor Pressure (25C) 0.62 mm Hg 8 DMSO - Highly Polar and Wide Solubility HYDROGEN BONDING with Other Solvents Flashpoint (TOC) 95 C (203 F) Ethyl Lactate DMSO2 6 DMF Butyl Carbitol Features of DMSO: DMAC DMSO DBE EEP • Miscible with water 4 Butyl Acetate Acetone NMP Methylene Chloride • Low level of toxicity Ether MEK 2 Propylene Carbonate • Powerful solvent for coatings and Aromatic HC polymers 0 Aliphatic HC • Compatible with a wide range of 0 2 4 6 8 1 0 1 2 1 4 Formulation ingredients POLAR PARAMETER • Biodegradable Your Global Leader for DMSO Solutions! Safety Data Acute toxicity Chronic toxicity Oral LD50 Inhalation LC50 Dermal LD-50 Oral LOEL Oral NOEL (mg / kg) (ppm) (mg / kg) (mg / kg) (mg / kg) 14,500- 28,300 none @ 2900 40,000 8800 1100 Data recorded for rats. Chronic studies occurred over 13 weeks. LOEL= Lowest Observed Effect Level NOEL= No Observed Effect Level DMSO has a low level of acute and chronic toxicity. DMSO is not a carcinogen (NTP, IARC), and is not a reproductive or developmental toxin. Gaylord Chemical Corporation provides extensive survey of toxicological and pharmacological data through EPA High Production Volume Program (HPV) for Dimethyl Sulfoxide available on-line at: http://www.epa.gov/chemtrk/dimthslf/c14721tc.htm Your Global Leader for DMSO Solutions! Safety and Handling Hand Protection: Butyl rubber or nitrile gloves Storage: HDPE / HDPE, mild & 304, 316 Stainless Steel, Al 6061-T6 Gaskets/ Polymers: PFTE, Kalrez® For detailed information regarding materials of construction, storage conditions, piping, and unloading conditions, refer to Gaylord Bulletin 107 (available from www.gaylordchemical.com) Your Global Leader for DMSO Solutions! Formulation! Cosolvents for DMSO stripping products Dibasic Esters (DBE, DME): ↑safe, miscible ↓solvent strength P-series glycol ethers: (DPM, TPM)↑solvent power, miscible ↓cost AR-100,150,200: ↑cost ↓’moth ball’ smell Ethyl lactate: ↑safety ↓solvent strength D-limonene / citrus terpenes: ↑smell ↓DMSO solubility t-butyl acetate: ↑VOC content ↓flashpoint Water: ↓negative affect on stripping performance Propylene carbonate: (Jeffsol) ↑safe, miscible ↓solvent strength Oxsol? ↑VOC content, solvent strength ↓safety, availability Benzyl alcohol? Your Global Leader for DMSO Solutions! Formulation! additives for DMSO stripping products • Viscosity modification: Methocel OS, Klucel H, Carbopol 934 • Activators: Monoethanolamine (MEA), triethanolamine (acids, peroxides not recommended) • Inhibitors: Cobratec 928 (copper, zinc at lower pH), Alox products (mild steel, low pH) • Fragrance: pine oil, limonene, citrus oil • Surfactants nonionics: Igepal OD-410 (Rhodia), Triton (Dow), Ethomeens (Akzo Nobel), Ninol (Stepan) Your Global Leader for DMSO Solutions! Formulation! sample formulation Sample Formulation Raw Material Amount Preparation: Ethanolamine and DMSO are DMSO 38-44% combined at room temperature, and AR-I50ND® 15-23% Methocel® 311 is added with stirring. As the mixture thickens, DBE, EEP and AR150 are DBE® 19-30% added sequentially. Rhodasurf® DA-630 is EEP 8-17% added last; Final product has a viscosity of ~7000 cps. Package in HDPE. Methocel® 311 1% Ethanolamine 0.5% Rhodasurf® DA-630 0.5% AR-150ND® is a product of the ExxonMobil Corporation. DBE® (dibasic ester blends) are products of DuPont. Monsanto markets a similar product line (DME® blends) EEP (3-ethoxyethylpropionate) is produced by Eastman Chemical Company Methocel® thickeners are produced by Dow Chemical. RhodaSurf ® DA-630 is a product of Rhodia. Your Global Leader for DMSO Solutions! Relative Performance • DMSO and NMP-based products perform similarly on paints • Both require 2-3 times as long to work than MC- based products • DMSO-based products are especially effective at stain/varnish removal • Formulation considerations nearly identical for DMSO & NMP Your Global Leader for DMSO Solutions! Relative Safety Acute Toxicity (mg / kg, rat) Oral LD50 Dermal DMSO 14,500-28300 40,000 NMP 3914 8000 •NMP is a suspect reproductive hazard. •DMSO has a low level of acute and chronic toxicity. DMSO is not a carcinogen (NTP, IARC), and is not a reproductive or developmental toxin. Your Global Leader for DMSO Solutions! Regulatory Aspects Reporting/Labeling Requirements • SARA III: NMP is section 13 listed; DMSO is not. • California Proposition 65 labelling: NMP is listed; DMSO is not. Prop 65 Warning label for NMP-containing products: WARNING: THIS PRODUCT CONTAINS A CHEMICAL(S) KNOWN TO THE STATE OF CALIFORNIA TO CAUSE BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM Your Global Leader for DMSO Solutions! 4. ‘Take-Home’ Message. • DMSO is an effective and safe replacement for NMP • Gaylord Chemical can help you formulate DMSO-based stripping products Your Global Leader for DMSO Solutions! For More information, please contact: Bob Strub email@example.com Gaylord Chemical Company LLC 106 Galeria Blvd Slidell, LA 70458 or: USA Artie McKim +001 (985) 732-6308 firstname.lastname@example.org Your Global Leader for DMSO Solutions!
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