Product Data Sheet. NeoCryl A-640. Delivery form: 40 % solids in water.

Transcription

1 is an aqueous acrylic copolymer designed for coatings that require outstanding water and humidity resistance. Coatings formulated with exhibit high gloss, fast dry, and excellent adhesion to various substrates including plastics such as ABS, polystyrene, polycarbonate, and polyphenylene oxide. is compatible with a wide variety of aqueous vehicles including water reducible alkyds and it is supplied at high solids without coalescing solvents. These unique properties result in wide formulating latitude. Typical properties Type - Styrenated acrylic Total solids, by volume - 38 % Weight per gallon, 25 o C lbs. as supplied Freeze/thaw stability - Passes 5 Cycles Heat stability,1month 52 o C - Satisfactory Film properties/key Benefits - High Solids - Humidity Resistance - Water Resistance - Salt Spray Resistance - Compatibility with Water-borne Alkyds - Excellent Adhesion to Metal, Wood & Plastic Delivery form: 40 % solids in water. Product specifications Property Range Unit GAP Appearance Milky white liquid 0059 Total solids w/w % 0001 ph Visc. Brookfield 25 C mpa.s 0020 Other product data Property Value Unit GAP MFT 40 C 0011 Density 20 C ± 13 kg/l 0006 Free monomer max ppm 0118 Tg ± 44 C 1140 Sediment 1-1 max % 0005 Sediment straight max. 05 % Acid value (on solid) ± 50 mgkoh/g 0095 Preservative(s): MIT (casno ) 010 % 0222 CMIT/MIT (3:1) (casno ) 0034 % 0222 Test methods Test methods (GAP) referred to in the table(s) are available on request. Storage guidelines The resin should be stored indoors in original, unopened, undamaged container in a dry place at storage temperature between 5-40 C. Exposure to direct sunlight should be avoided. Shelf life Under above mentioned storage conditions, the shelf life of the resin will be 12 months ex work. Material safety A Material Safety Data Sheet for this product is available on request. Page 1 of 5

2 APPLICATION PROPERTIES Formulation WB-2008 based on will produce a clear film with excellent dry time. Typical properties of clear films from Formulation WB-2008 based on are described in Tables I and II. TABLE I Application Properties Film applied on black glass at 1 mil DFT (50% RH and 72 F) Tack free time, min. 55 Sward hardness development 24 hrs hrs days 34 TABLE II Physical Properties Film cast on cold rolled steel at 1 mil DFT (Cured at 180 F for 30 minutes) Tukon, KHN 8.9 Pencil hardness F-H Sward hardness 36 Adhesion 5B Impact resistance in lbs. pass/fail Direct 8/12 Reverse 0/4 Page 2 of 5

3 CHEMICAL AND ENVIRONMENTAL PROPERTIES Coatings based on exhibit outstanding water and humidity resistance. Addition of an air dry crosslinker, such as DSM NeoResins polyfunctional aziridine Crosslinker CX-100, will give excellent chemical resistance of coatings based on. The chemical, water, humidity and corrosion resistance of Formulation WB-2008 are described in Table III. TABLE III Chemical, water, humidity, corrosion resistance (1 mil DFT, on cold rolled steel, air dried 7 days) Toluene IPA Ethanol Vodka Mustard Hot Coffee Chemical resistance: Slight softening, Recovers Humidity Resistance (100 F, 100% RH, 150 hours) Whitening Wet Adhesion Slight, Recovers Excellent Water Soak Resistance (100 F, 150 hours) Whitening Wet Adhesion Slight, Recovers Excellent Corrosion Resistance (5% NaCl, 100 hours) Undercutting 1/8 inch Slight Page 3 of 5

4 ADHESION CHARACTERISTICS exhibits excellent adhesion to a wide range of substrates. Addition of a crosslinking agent, such as DSM NeoResins Crosslinker CX-100, can improve its adhesion characteristics to certain types of plastic substrates. Table IV describes the adhesion performance of on metal and plastic substrates. TABLE IV Adhesion of (Formulation WB-2008, 1 mil DFT ASTM 3359B, cured for 30 minutes at 150 F) Metal Plastics B B Polycarbonate, Lexan EM3110 5B QD 5B ABS, Cycolac AR3501 3B QR 5B ABS, Cycolac ZR B Aluminum 5B Noryl, PXO B Noryl, B Polystyrene, Dowstyron 6087SF 5B Coalescence is not a film former. Addition of co-solvents at 25-35% based on resin solids is required to form a film. The following co-solvents are suggested: Butyl Cellosolve PnB Carbitol DPnB Texanol PnP Blending co-solvents with water before addition to the latex is suggested to prevent any shocking of the system. Suggested Starting Point Formulas WB-2008 WB-2061 Clear Gloss Lacquer Gloss White Spray Lacquer Page 4 of 5

5 Raw Material Suppliers Material Supplier Ammonium Benzoate Cas Chem (201) BYK 301 Daxad 30 DC-14 Drewplus Y-200 FC-134 BYK Chemie - USA (203) Dow Chemical (877) Dow Corning (800) Ashland Chemical Company Drew Div. (800) X7800 3M Industrial Chemicals (800) Foamaster W88 Henkel Corp. Foamaster NXZ Coatings & Ink Div. Nopcosant K (215) SF-1141 SL-92 Surfynol Tg Tamol 165 General Electric Co., Silicones (800) Elementis Specialties (201) Air Products (800) Rohm & Haas Co. (215) Butyl Cellosolve Lyondell Chemical Company Carbitol (800) PnB DPnB PnP Page 5 of 5