Product Data Sheet. NeoCryl A-622

Transcription

1 is an aqueous acrylic copolymer Delivery form: 32 % solids. which offers outstanding water and humidity resistance. is the resin of choice for high performance metal finishing, combining the fast dry characteristics of NeoCryl A-601 with the high gloss of A-621. Supplied pre-coalesced and "ready-to-go", eliminates the need for further coalescing solvents. Product characteristics Total solids, by volume - 29 % Weight per gallon, 25 C lbs. as supplied Freeze/thaw stability - Keep from freezing Heat stability, 1 month 52 C - OKAY Mechanical stability - Excellent VOC type - 2-butoxyethanol Film properties/key Benefits - Humidity Resistance - Early Water Resistance - Salt Spray Resistance - Mar Resistance - High Gloss Product specifications Property Range Unit GAP Appearance Milky white emulsion 0059 Total solids w/w % 0001 ph Visc. Brookfield 25 C mpa.s 0020 Other product data Property Value Unit GAP Density 20 C 1.12 kg/l 0006 Free monomer Max ppm 0118 VOC (theoretical) % Sediment 1-1 Max % 0005 Sediment straight Max % Preservative(s): CMIT/MIT (3:1) (ca % ) 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 6

2 APPLICATION Drying A 3 mil drawdown was applied to glass and air dried at 50% RH and 72 F. The following properties were achieved: Hardness Tack Free Time 55 Sward Hardness Development 24 Hrs Hrs Days 34 A 3 mil dry film was cast on metal panels and conditioned by baking 30 minutes at 180 o F. The following ultimate hardness values were noted: Spraying Tukon, KHN 8.9 Pencil Hardness F-H Sward Hardness 36 is supplied "ready-to-go" and can easily be sprayed using conventional air and airless spray equipment. The optimum viscosity for spraying is seconds on a #4 Ford Cup. For air spraying recommended pressure is 45 to 50 psi gauge pressure. Page 2 of 6

3 CLEAR FILM PROPERTIES A clear, mil dry film was spray applied to cold rolled steel (ASTM D609, 2B) and conditioned by baking 20 minutes at 180 F. Results were as follows: Pencil Hardness, ASTM D363 Adhesion (scotch tape) F-H Excellent Impact Resistance, in Lbs., Pass/Fail Direct 8/12 Reverse 0/4 Flexibility, cylindrical mandrel 1 inch Fail Cleveland Condensation Cabinet (100% RH; 100 o F) 96 Hrs. Salt Spray, 5%, NaC1, Undercutting 100 Hrs. 1/8 inch Slight Water Immersion (100 o F) 100 Hrs. Page 3 of 6

4 PIGMENTED FILM PROPERTIES A high gloss white spray enamel (formulation 111A) was spray applied to Bonderite 1000 panels and baked 20 minutes at 180 F. Dry film thickness was mils. Results were as follows: Gloss, Adhesion Pencil Hardness Excellent F-H Impact Resistance, Inch Lbs., Pass/Fail Direct 16/20 Reverse --/4 Flexibility, cylindrical mandrel 3/16" Pass Salt Spray 5% NaC1, 95 F 100 Hrs. Slight Undercutting 1/8" Water Immersion, 100 F 100 Hrs. Cleveland Humidity Cabinet (100 F/100% RH) 100 Hrs. QUV Weathering, 500 Hrs. Loss in Gloss Yellowing Chalking Trace Trace Page 4 of 6

5 FORMULATING GUIDE Flash The following materials have exhibited good resistance to flash rusting when used with : Ammonium Benzoate (10% solution in water) Potassium Dichromate (10% solution in water) Defoamers Foamaster W 88 Drewplus Y-200 Foamaster NXZ 8-10 lbs lbs. 4-5 lbs. 2-3 lbs. 1-2 lbs. Dispersants Level % on Level of TiO 2 Daxad Surfynol Tg 0.1 Nopcosant K 0.7 Tamol In an evaluation of dispersants both Nopcosant K and Daxad 30 exhibited good results from the standpoint of fineness of grind, mill base viscosity and gloss. However, when a combination of Daxad 30 and Surfynol Tg were used, the lowest mill-based viscosity was obtained. Tamol 165 gives best resistance to flocculation. Flow Agent SF lbs. DC lbs. FC 134 (1% solution) lbs. Mar Agent BYK 301 SL lbs. 3-4 lbs. Page 5 of 6

6 Raw Material Suppliers Material Supplier Ammonium Benzoate Cas Chem (201) Raw Material Suppliers Material Supplier Nytal 400 R.T. Vanderbilt Company (201) Atomite Thompson, Weinman & Company (404) Oncor M-50 Elementis Specialties SL-92 (800) Bubble Breaker 3056-A Witco Chemical Corp. (212) Potassium Dichromate CAS Chemical (201) BYK 156 BYK Chemie - USA BYK 301 (203) R-4098 Harcros Pigments Inc. (800) Colloid 643 Rhône-Poulenc (609) Raven 1000 Columbian Chemicals (770) Daxad 30 DC-14 Dewey & Almy (A Division of W.R. Grace) (617) Dow Corning ( 517) Drewplus Y-200 Drew Chemical Corp. Drewplus L-405 (201) FC-134 3M Industrial Chemicals (201) SF 1141 Surfynol Tg General Electric Co. (518) Air Products (800) Tamol 165 Rohm & Haas Co. Tamol SG-1 (215) Triton CF-10 Union Carbide Corp. Triton GR-7M (800) Silwet L-7001 Foamaster W88 Henkel Corp. Foamaster NXZ (800) Nopcosant K Zopaque RCL-9 SCM Pigments (301) Halox SW-111 Mica-325 Mesh Halox Pigments (219) English Mica Company (203) Page 6 of 6