{"product_id":"antique-black-m20-immersion","title":"Antique Black® M20 Immersion","description":"\u003cp\u003e\u003c\/p\u003e\u003ch2\u003eANTIQUE BLACK M20 Antiquing Solution\u003c\/h2\u003e\r\n\u003cp\u003eOperating Instructions\u003c\/p\u003e\r\n\u003ch1\u003ePRODUCT DESCRIPTION\u003c\/h1\u003e\r\n\u003cp\u003eANTIQUE BLACK M20 Antiquing solution is a general purpose browning and blackening solution for use on copper, brass \u0026amp; bronze surfaces, and works on both solid and electroplated parts. Supplied as a liquid concentrate, the product is diluted with water to make up an immersion solution that operates at room temperature to produce medium-dark browns and black finishes. The finish can be highlighted for pleasing black, brown or US10B finishes.\u003c\/p\u003e\r\n\u003ch1\u003eOPERATING CONDITIONS\u003c\/h1\u003e\r\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eBath Make-Up Concentration                       20-25% by volume for dark brown\/black\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e                                                                        10-15% by volume for lighter brown shades.\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eOperating Temperature                                 Room Temperature\u003c\/li\u003e\r\n\u003cli\u003eEquipment Construction                               Acid-proof tank: plastic or PVC lined.\u003c\/li\u003e\r\n\u003cli\u003eVentilation                                                    None required. No fumes.\u003c\/li\u003e\r\n\u003cli\u003eFiltration                                                       Desirable for production-scale tanks.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003e                                                                          Use acid-proof pump and 50-100 micron        polypropylene filter element.\u003c\/p\u003e\r\n\u003ch1\u003ePARTS PROCESSING GUIDELINES\u003c\/h1\u003e\r\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\r\n\u003col\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eCLEAN \u003c\/strong\u003eand degrease the parts for five minutes in SAFE SCRUB M Multi-Metal liquid cleaner, mixed at 10-20% by volume; 100-140° Or, use bead blast techniques. OR, electroplate parts, applying a minimum thickness of 0.0002”.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eRINSE \u003c\/strong\u003ein clean water tank for 30 seconds, to remove cleaner\/plating\u003c\/li\u003e\r\n\u003cli\u003e(Optional) \u003cstrong\u003eREMOVE TARNISH \u003c\/strong\u003eand neutralize residual plating cyanide by immersing parts in 5% sulfuric acid or sulfuric acid salts; Room Temp; 1 \u003cstrong\u003eRINSE \u003c\/strong\u003ein clean water for 30 seconds.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eAPPLY ANTIQUE FINISH \u003c\/strong\u003eby immersing parts in ANTIQUE BLACK M20 solution for 1-3 minutes, as needed, to produce the desired Agitate parts gently to assure solution contact with all surfaces.\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eRINSE \u003c\/strong\u003ein clean water tank for 20\u003c\/li\u003e\r\n\u003cli\u003e\n\u003cstrong\u003eDRY \u003c\/strong\u003ethe parts and apply lacquer. Or, \u003cstrong\u003eHIGHLIGHT \u003c\/strong\u003ethe finish with an abrasive or polishing wheel or in a vibratory finisher. Apply protective topcoat, such as clear lacquer, wax or Note: the topcoat will enhance and darken the color of the finish as it is absorbed. The final color should be judged after the topcoat is applied.\u003c\/li\u003e\r\n\u003c\/ol\u003e\r\n\u003ch1\u003eBATH MAINTENANCE\u003c\/h1\u003e\r\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eThe ANTIQUE BLACK M20 bath can be operated as a permanent bath in the process line and is controlled by total acid titration, or by using the CCK Color Change Test Kit (available from Birchwood Technologies). Other methods, such as total acid titration or Atomic Absorption (with a selenium lamp) may also be used. Maintain the bath strength at 80% of original make-up or higher. Keep tank covered when not in use to minimize contamination and evaporation.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eBefore Using This Product – \u003c\/em\u003e\u003c\/strong\u003e\u003cstrong\u003ePlease Read, Understand and Follow all the Precautions shown on the Product Label and on the Safety Data Sheet.\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/birchwoodtechnologies.com\/wp-content\/uploads\/2022\/02\/7200_Antique_Black_M20_SDS.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSDS\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Birchwood Technologies","offers":[{"title":"8oz","offer_id":48016404283707,"sku":"74M20","price":24.0,"currency_code":"USD","in_stock":true},{"title":"32oz","offer_id":48016404316475,"sku":"74M2032","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Gallon","offer_id":48016404349243,"sku":"74M20G","price":190.0,"currency_code":"USD","in_stock":true},{"title":"5 Gallon","offer_id":48016404382011,"sku":"720051","price":630.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/7539\/6411\/files\/Antique-Black-M20.jpg?v=1743102433","url":"https:\/\/maacaffestore.com\/products\/antique-black-m20-immersion","provider":"The Compleat Sculptor, Inc","version":"1.0","type":"link"}