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0. CORROSION, COMPATIBILITY, CHOOSING A FINISH . . .

49400. Corrosion resistant coating for rock bit bearing races [India] (July 23)
49269. Resistance of SS 304 to ozone at 1.5 PPM [Kenya] (July 23)
49413. Galvanic Corrosion Between SS and Anodized Aluminium? [India] (July 22)
49389. Low cost replacement material for stainless steel [Arizona] (July 22)
49388. Can SST 304 stand cyclohexanone and cyclopentanon [Vietnam] (July 19)
49352. What coating for deep drawn stainless steel form tools [Michigan] (July 16)
49351. Corrosion resistant black finish for Bronze [California] (July 16)
49317. Filling casting grooves with tin or zinc [Connecticut] (July 14)
49248. Anti-adhesion coating for copper parts heated at 350C [France] (July 14)
49267. How can I protect stainless steel pipes from Chlorides and Chlorine corrosion [Ireland] (July 11)
48601. Insulation coating for CRCA steel [India] (July 10)
49240. Copper/aluminum corrosion in hot water [Kansas] (July 9)
49103. Galvanic Reaction: Galvanised Flanges with Stainless Bolts? [South Africa] (July 3)
49198. Stainless compatability with trivalent CCC on aluminum casting [Ohio] (July 3)
49125. Stainless fasteners to be used poolside ? [England] (June 30)
49013. Ceramic Coating for Biomass Gasification Environment? [Vermont] (June 16)
48661. Does chlorine from insulation attack stainless steel at 450 C? [Iran] (June 13)
48636. Compatibility of Plastic, Resin and Rodine [Brazil] (June 13)
48610. Need corrosion resistant agent against heated inconel [Japan] (June 13)
48498. Stainless steel grading device [Texas] (June 13)
48489. Pitting problems with 316L SST parts for filtering chloride solutions [India] (June 13)
48256. Hexavalent / Trivalent coatings [India] (June 13)
48997. Resistance of passivated stainless steel to corrosion in fuel environment? [Israel] (June 11)
48971. Corrosion resistant, Rohs Compliant, Black Coating, Conductive [California] (June 9)
48391. Compatibility of aluminum and galvanized steel [Philippines] (June 6)
48934. Corrosion between anodized aluminium sheet and galvanised steel frame. [UAE] (June 5)
48882. Is 420 stainless steel equivalent to 18/10 stainless steel [New York] (June 4)
48897. Bright, reflective, inexpensive and easily applied finish over copper? [Ohio] (June 2)

1. PREPARATION . . .

1a. MECHANICAL PREP [GRINDING, POLISHING, VIBRATORY FINISHING, BUFFING, HONING]

49181. What plastic media for blasting ADC6 aluminum castings? [India] (July 22)
49387. Removing Black Stain from High Tensile Allen Bolt [India] (July 22)
49299. OBTAINING 4A FINISH IN STAINLESS STEEL TANKS [Michigan] (July 18)
49141. Mirror polishing a weld joint between stainless steel sheets [Indonesia] (June 30)
49079. Material used for sand blasting in aviation field [UAE] (June 24)
49053. Satin finish mild steel [Mississippi] (June 24)
49052. How to achieve diecast-like finish on machined aluminum? [Minnesota] (June 24)
48619. Procedure for polishing aluminum wheels [Florida] (June 16)
48909. Residues from Mechanical Polishing Hastelloy [UK] (June 13)
48896. Scratches when polishing aluminium pots [India] (June 13)

1b. PRETREATMENTS [PICKLING, PASSIVATION, PHOSPHATIZING, CLEANING, ELECTROPOLISHING, ACTIVATION]

49350. Welded SUS430 part failed in salt spray test [Hong Kong] (July 23)
49316. Passivating a brazed 440C assembly [California] (July 23)
49315. Maximum time limit on nitric acid passivation [Indiana] (July 23)
49399. Detailed operational parameters for 7-tank phosphating process [India] (July 22)
49386. Need to polish or smooth inside of 1/16" Titanium tube [California] (July 22)
49260. Holes in electropolished SS 316LVM [Spain] (July 16)
49246. Chemical reaction of cold phosphating [India] (July 9)
49236. Baking after passivation for Custom465 [Israel] (July 9)
49223. Bright annealed stainless ... different shades? Why do they go brown? [UK] (July 8)
49076. Poor adhesion on stain steel metals because of glue [Mexico] (July 8)
49102. Removal of "blueing" on SAF 2507 welds [Australia] (July 7)
49179. Do I need to passivate a SS tank if storing only vegetable oil? [Missouri] (July 3)
49121. 400 series passivation [South Carolina] (July 3)
49197. Electro Polishing Surface Quality on Curved Surfaces [Georgia] (July 2)
49180. Electrochemical etching on S.S. [India] (July 1)
49048. Phosphate and oil finish degrading? [California] (June 26)
48740. Passivation of 304L stainless tank in the field. [Texas] (June 26)
49124. Substitute for cyanide in cleaning solution [Mexico] (June 25)
49086. Can't remove residue and rust on Inconel pipes [UK] (June 23)
49030. Electro Chemical De-burring of Micro Surgical Knife [India] (June 20)
49018. Steel wire pickle green surface [Indiana] (June 19)
49063. Electro polishing [Canada] (June 19)
49049. Pretreatment discoloration [India] (June 18)
48960. How to electropolish H13 steel [Venezuela] (June 17)
48741. Passivate Titanium per ASTM F86-04 [New York] (June 17)
49031. Crack in deep drawn components after pre treatment [India] (June 17)
49012. Conversion coating without painting [Iran] (June 13)
48970. Explanation for reaction of 303SS to nitric acid passivation? [Connecticut] (June 9)
48945. Stainless steel electropolish chemical composition [India] (June 5)
48630. Parameters for nitric acid passivation of piping by circulation [India] (June 4)
48926. Proper racking procedure for small springs [Tennessee] (June 4)

1c. MASKING, RACKING, TAPING, PLUGGING, PHOTOSENSITIVE MASKS

49047. Perfect Electroless Nickel Rack? [New York] (June 26)
48932. Racking large rings for Sulphuric Acid Anodising [Singapore] (June 11)

2. INORGANIC FINISHING PROCESSES . . .

2a. ANODIZING AND LIGHT METAL TREATMENTS

27990. Anodizing Flakes Off of 7075 Parts [New Jersey] (July 23)
48999. PITTING OF ALUMINIUM 6063 EXTRUDED PARTS DURING ANODIZING [India] (July 23)
49375. Foam layer growing on Anodizing & Electrocolouring baths [Saudi Arabia] (July 21)
49362. Need A380 Aluminum finish process that looks like stainless steel [Michigan] (July 17)
49349. Composition of black anodized Al part [Florida] (July 16)
49292. Aluminum parts impossible to separate after service [Virginia] (July 16)
49291. Clear Chromate developing dark spots [North Carolina] (July 14)
2459. Discoloration of Black Anodized Aluminum Parts [Pennsylvania] (July 14)
49298. Aluminium in concrete. Life expectancy [UK] (July 11)
49268. Discoloration of anodic film after welding [Canada] (July 10)
49142. Chromicoat L25 won't plate to 2024-T3 Aluminum [Illinois] (July 10)
49029. Do I need multiple rectifiers for anodizing? [India] (July 10)
49250. Anodized parts, part mark won't cure [Colorado] (July 10)
49245. How to do contact resistance test of Conversion Coating? [Switzerland] (July 9)
49195. Hardware Requirements for Chemfiming? [California] (July 7)
49120. Longevity of Electopolished Aluminum vs. Brite dip [Missouri] (July 7)
48986. Effects of acid etching on different 2024 tempers [New York] (July 7)
48908. Chromic acid anodize ramp-up time [Texas] (July 7)
10688. Black spot on anodic film [Canada] (July 7)
49213. In which order can I proceed with OAC, OAD, Alodine [France] (July 3)
49178. How to get Satin Matte finish for Anodizing [India] (July 3)
49101. Compatibility of Type III Anodized Aluminum and Stainless Steel [North Carolina] (July 3)
48995. Aluminum pulleys seize on SS prop shafts at Mystic Aquarium [Connecticut] (June 30)
49159. Black hard coat anodizing turning copper [Massachusetts] (June 28)
49135. Non-sealed Anodised AA5 is staining through our powder coating [Scotland] (June 27)
49133. Tin-Lead Plating vs. Hard Coat Anodize cost comparison [Massachusetts] (June 26)
49132. Making Red Anodize Surface Conductive [Indiana] (June 26)
48969. We want our Hard Anodizing to be blacker [China] (June 23)
49078. Temperature effects on Anodized Aluminum Parts [Tennessee] (June 20)
48996. STRIPPING HARDCOAT ANODIZED COATING ON 6061-T6 ALUMINIUM [India] (June 16)
49011. Alodine 1200 as a substitute for Anodize when reworking [Brazil] (June 13)
49001. Nickel plating thickness requirement for bus bars [Canada] (June 11)
48895. Formulation for Bondal dip [Pakistan] (June 6)
48925. Need opinion about operating conditions of anodizing, and determination of K2Cr2O7 in sealing bath [Pakistan] (June 4)
48907. Chromic anodizing and fatigue [Mexico] (June 2)

2b. ELECTROPLATING and ELECTROFORMING

49398. Copper alkaline or brass bath make up [Egypt] (July 23)
49397. How to remove small traces of Pb on a Lead-free plating solution? [Philippines] (July 23)
49412. Plating a metal stamping with hardened stud attached [North Carolina] (July 23)
49411. Platinum plating problem [India] (July 23)
49158. Re-activating nickel for continued electroforming build up [Iowa] (July 22)
49143. pH of gold plating bath [Philippines] (July 22)
49374. Plating titanium jewelry with diamonds already inserted [Texas] (July 21)
49074. Brass plating peel off [Pakistan] (July 18)
48966. How to lower sodium carbonate in alkaline zinc [Virginia] (July 18)
49360. Alternate to electroless nickel plating on aluminum sheet? [Oregon] (July 17)
49010. Nickel tarnishing in LCD area of brass metal sheet bucket [India] (July 17)
49373. How to do Oil Rubbed Bronze finish on Aluminum [California] (July 17)
49361. Bad finishing on rotor chromed by electrodeposition [Venezuela] (July 16)
49359. Want cyanide free copper and brass plating processes [India] (July 16)
49297. Okay to substitute nickel strike for copper flash? [Singapore] (July 16)
49289. Tin plating corrosion test [Philippines] (July 16)
49348. Portland Cement plastered over Zinc Chromate painted steel bars [Malaysia] (July 16)
49332. Surface of 100% Tin Plated Brass Stamped Parts Turns Blue/Grey After Flow Soldering [England] (July 15)
49313. CHROME DOTS OBSERVED AFTER PLATING [Sri Lanka] (July 14)
49290. Achieving of final tolerances of product after chromium plating [Slovenia] (July 14)
49247. Differences between adhesion of hard chrome over decorative and bright nickel [Colombia] (July 14)
49314. Making brightener for Alkaline Zinc Barrel Plating in house [India] (July 11)
49312. Brown-Black Spot is coming on Brass Electroplated components [India] (July 11)
49244. Gage study of autotitrator for NiFe bath [Minnesota] (July 10)
49234. Corrosion forming after Type II zinc plating [Australia] (July 10)
49116. Is acid zinc cobalt successfully used for barrel plating? [India] (July 10)
49045. Black Zinc is rusting and rubbing off [India] (July 10)
48931. White and Black spots on zinc-yellow chromated screws [Philippines] (July 10)
48851. Plating Copper on Titanium [Washington] (July 10)
48819. Need to do zinc plating inside the pipe, what process to follow? [India] (July 10)
49263. Plating Hard Chrome on top of Electroless Nickel [Indonesia] (July 10)
49262. Electroforming isn't sticking to steel surface [Indonesia] (July 10)
49221. Cracking problem in chrome plating on berylium copper [Massachusetts] (July 8)
48850. Taper Locks of mold cracked after chrome plating [Korea] (July 7)
49222. How to activate copper for reel-to-reel tin plating [California] (July 3)
49220. Spec'ing Nickel and chrome plate on 260 brass [New York] (July 3)
49193. Silver Plating - Anti-Tarnishing Specs or Standards [Massachusetts] (July 3)
49177. Risk of replacing hot dip zinc by sealed electrolytic zinc [Mexico] (July 3)
48737. Salt Spray standard for Satin Nickel [California] (July 3)
49175. Can Zinc-Nickel plating be applied to INSIDE of already ASSEMBLED pipe spool for seawater conduction? [Mexico] (July 3)
49194. Copper Plating Concrete [Philippines] (July 2)
49176. Hard chrome plant/anodizing plant [Canada] (July 1)
49157. Replacing rhodium with platinum plating [Colombia] (June 30)
49131. Micro cracking of Cr plating on calendering roll [Korea] (June 30)
49118. How about iron plating instead on nickel plating between copper and EN? [Wisconsin] (June 30)
49098. Jet Black With Rhodium or Ruthenium [India] (June 30)
49009. Chrome Bath Help: Chrome to Acid Ratio [Arkansas] (June 30)
49000. Crystals on Bright Nickel Anode Bags [Australia] (June 27)
49144. Yellow-brown pitting dot on reel-to-reel plated tin surface [Malaysia] (June 27)
49119. How to do antimicrobial silver plating on aluminum? [Pennsylvania] (June 26)
49117. What shops in the USA pulse plate hard chrome? [Sweden] (June 25)
49055. Nickel plated steel wire turns yellow [India] (June 24)
49100. Electro galvanised staple pins used for long lasting books [India] (June 24)
49099. What is zirconium coating? Its chemical sources? [India] (June 24)
49075. Testing whether it's Zinc or Nickel-chrome plating [Germany] (June 23)
49021. Hardness required in nickel sulfamate deposits...! [India] (June 20)
48994. Duplex nickel passes STEP test but not salt spray test [Thailand] (June 19)
49059. Electro plating on exposed steel [India] (June 19)
49037. Peeling of silver plating [Illinois] (June 19)
49046. Are There Any Intern Opportunities Around [Arkansas] (June 19)
40685. Black hard chrome problems [New Jersey] (June 17)
49028. Matte Nickel by Plating then Electrophoretic Lacquer [India] (June 16)
48993. Clear zinc plating develops brown stains with time! [California] (June 13)
48770. Peeling and pitting of hard chrome plating on SG iron casting [India] (June 11)
48968. Minimum nickel electroplate thickness for bright finish [Texas] (June 10)
48514. HELP! Satin nickel finish doesn't match what we did last year [Washington] (June 10)
48276. Rinsing time before electroplating [Pakistan] (June 10)
48967. Color and Glossiness standards for decorative plating [California] (June 9)
48893. Bright Tin Thickness for Solder Parts [Ohio] (June 9)
48979. Gold plating adhesion [Colorado] (June 9)
48978. Plating Zinc Die-Cast without Copper [Oregon] (June 9)
48930. Oil rig tools became copper plated! [Texas] (June 6)
48924. Contamination of watts nickel system by fluoborate? [Indonesia] (June 5)
48923. Silver plating over silver inlay material [Illinois] (June 5)
48906. What's the neutral make up bath formula for 24K gold electroforming? [China] (June 5)
48947. Ultraseal vs Zinc Chromate [Canada] (June 5)
48944. Hard chrome: need info about Mohler cell [France] (June 5)
48874. Nickel sulphamate plating is brittle and grows trees [India] (June 4)
48806. Porosity of Silver Plate over Nickel/Brass [Texas] (June 4)
48880. Why does Zn-Ni black plating becomes brownish [India] (June 3)
48808. Choosing the right type of process for miniature bright nickel finishing [UK] (June 3)
48905. How does zinc plate with chromate or bright chrome finish perform in hydrogen sulphide? [Canada] (June 2)
48894. Trying to eliminate chromate in zinc plating line [Illinois] (June 2)
48872. Hard chromed calender rolls scratched in 30 minutes! [Costa Rica] (June 2)
48787. Compressive stress in sulfamate Ni plating tank [Pennsylvania] (June 2)

2c. ELECTROLESS PLATING, PLATING ON PLASTICS, IMMERSION PLATING

49401. Suggestions for metallic finish polypropylene [UK] (July 22)
49331. Nickel "chips" on EN coating over Fe material [Singapore] (July 19)
49372. Aluminium Turns black in EN [Scotland] (June 18)
49288. Silver spray problems in the making of stampers for pressing vinyl records [California] (July 16)
27735. Acid copper plating void holes [Malaysia] (July 11)
49251. Plating on plastic which is not ABS plastic [UAE] (July 10)
49115. How can we do on-line control of tin (g/l) in chemical bronzing? [South Carolina] (July 3)
49138. Can't achieve electroless nickel finish that is dull enough [South Korea] (July 3)
49096. The process for electroless nickel plating [India] (June 26)
49097. Plating on a high chrome surface [Singapore] (June 24)
48943. Post baking E-Ni on Alum. for adhesion -per specifications [Kansas] (June 23)
48922. Can we do Nickel Chrome Plating on Nylon GF (60%) [India] (June 5)
48598. Ni Plating thickness on Aluminum for solderability? [California] (June 2)

2d. PVD, CVD, ION IMPLANTATION, VACUUM PROCESSES

49330. Wet Flux Galvanizing [India] (July 15)
49174. Poor adhesion of titanium nitride on carbide inserts [India] (July 3)
48965. Hazy/Cloudy Problem on ZrCN PVD coating [Hong Kong] (June 6)

2e. GALVANIZING, ALUMINIZING, HOT TIN DIPPING

49410. Powder Coating Versus Galvanizing with Top Coating of Paint [Oregon] (July 23)
49396. Can Galvanized Sheets be Annealed? [India] (July 23)
49328. Approximate cost to open a hot dip galvanizing business in North America? [Canada] (July 17)
49329. How to get Aurora Borealis effect on crystal beads? [UAE] (July 15)
49271. Ammonium chloride requirements for galvanizing flux, and analysis of same [Egypt] (July 15)
49212. Remove Chromate Stain From Galvanized Steel [Kentucky] (July 15)
49295. How to reduce a bottom dross generation in hot dip galvanizing line ? [India] (July 15)
49311. Can we let the galvanizing bath cool when not in use? [Pakistan] (July 14)
49296. Hot Dipped Gal vs Mechanical Gal [Australia] (July 14)
49192. Counteracting zinc buildup on Mig wire areas through lower silicon? [Texas] (July 3)
44319. Continuous galvanizing process [Iran] (June 25)
48942. Hazy on IPG coating (ZrCn gold color coating) [Hong Kong] (June 5)
48678. Best Suited Non-electric Heater for Galvanising [India] (June 2)

2f. BLACK OXIDE, BLUING, COLORING, PATINATING

49273. Adhesion to nirosta black oxide [Israel] (July 22)
49196. Steel blueing for watch hands [India] (July 8)

2g. OTHER INORGANIC FINISHING PROCESSES [PORCELAIN, FLAME SPRAY, HVOF, MECHANICAL PLATING]

49358. Will cryogenic treatment improve Chromium Nitride? [India] (July 16)
49327. Need information about ceramic coating equipment and supplies [Iowa] (July 15)
49270. Ni Crystals are forming on our CVD parts [Tennessee] (July 10)
49130. 1st vs. 2nd vs. 3rd Generation Trivalent Passivation [India] (July 6)
48904. Plasma spray coatings [Pakistan] (June 13)
48921. Spray and fuse of Colmonoy 5 ( a Ni-Cr-B composition) on 4130 HSLA steel [Singapore] (June 6)

3. ORGANIC FINISHING PROCESSES . . .

3a. ELECTROPAINT PRIMING, AUTOPHORETIC COATINGS

49385. Ced coating process? [India] (July 21)
49019. Color of CED paint [India] (July 21)
49114. Looking for details about CED painting [India] (July 21)
49051. Ecoat paint over galvaneal material [Brazil] (June 18)
49008. Difference between E-Coat and Cataphoresis Process [India] (June 12)
48920. Setting up small e-coat line [Kansas] (June 3)
48919. Autophoretic coating suitable for Al/Fe interface? [Michigan] (June 3)

3b. POWDER COATING

49414. Sign maker asks about 3-layer Powder Coating. How? [Arkansas] (July 23)
49384. Optimal corrosion resistance for powdercoat on outdoor application [California] (July 23)
49347. Galvanized fencing bubbles up after powdercoat [Ohio] (July 17)
49238. Dirty Steel prior to Powder Paint Wash [Massachusetts] (July 14)
48524. Powder Coating - fail impact test (160 in-lbs) and Salt Fog Test 500 hrs [Malaysia] (July 7)
49211. Peeling powdercoating caused by remnants of PVC protective film? [New Zealand] (July 4)
49173. How to recycle powder coated steel and aluminium parts [India] (July 1)
49066. Powdercoating brass [Virginia] (June 30)
48992. How hot should aluminum rims get for powder coating [Nevada] (June 11)

3c. LACQUERS, CLEAR COATS, ELECTROPHORETIC TINTING, ANTI-TARNISH

49310. Micron thick tungsten carbide coat by electrophoresis [India] (July 11)
48918. Need information on the silvering process for lacquer master recordings [California] (June 3)

3d. PAINTING, ADHESIVES AND OTHER ORGANIC COATINGS

49241. Liquid painting done on automobiles [India] (July 19)
49276. Inquiry about mixing by a small-scale paint store [Philippines] (July 17)
49371. SPILLAGE IN EXTERIOR ROBOTS [India] (July 17)
49357. Paint peel off [India] (July 16)
49346. Aluminum alloy wheel repair...no pretreatment required? [Indiana] (July 16)
49264. Concentrators vs Tower Systems vs Rotary Style valve systems vs Catalyst systems: Which is best? [Ohio] (July 10)
49191. WHY does this rust occur? [Oklahoma] (July 10)
49058. Preparing Mild Steel as milled for Painting [Georgia] (July 3)
49140. Teflon coating thickness [California] (June 27)
49036. Replacement of solvent blend [Nigeria] (June 19)

4. POST-TREATMENTS

4a. CHEMICAL POST-TREATMENTS [CHROMATE CONVERSION COATINGS, RUST PREVENTATIVES]

49033. Black chrome post-wax recommendation [Illinois] (June 16)
48847. Black nickel look for brass zippers [India] (May 23)
48794. Coloring 18-8 stainless steel red [New Jersey] (May 16)

4b. BAKING AND NON-CHEMICAL POST-TREATMENTS: [HYDROGEN EMBRITTLEMENT AND DE-EMBRITTLEMENT, ANNEALING, WHISKERS, SOLDERING, REFLOWING]

49326. SAC tinned component leads compatibility with SnPb solder paste [Malaysia] (July 15)
49294. Does zinc and clear passivate effect properties of high tensile screw? [UK] (July 14)
49156. Hydrogen Bake - How Long and When? [Illinois] (June 30)

4c. STRIPPING, REWORKS, ETC.

49309. Stripping hard chromium from AISI 410 [Italy] (July 18)
49277. Replating of Brass Parts once plated with Tin; Can I replate with Nickel and Tin? [India] (July 10)
49062. Chemical for easy removal of MIL-C-5541, CL3 ? [New York] (July 1)
49113. How to remove fusion glued logos from our ionized aluminium cameras? [Canada] (June 26)
48917. Metal spray stripping via hydrochloric acid [Arizona] (June 9)

5. SUPPORTING ISSUES

5a. ANALYSIS, LAB TECHNIQUE, Q.A.

49370. Water immersion testing vs copper sulfate testing after passivation [California] (July 23)
49356. Does inbuilt heater affect Salt spray chamber? [India] (July 16)
49308. Test method to prove that casting was impregnated? [Turkey] (July 16)
49338. Determination of acidity in pickling and phosphatizing [Colombia] (July 15)
48869. Salt Spray Temperature and Pressure [Colorado] (July 15)
49095. I wish to know how to test free acidity of the bath [India] (July 11)
49050. Thickness measurement of TiN plated through pvd process [India] (July 11)
49210. Any NDE to determine Nitriding case depth? [Texas] (July 11)
49219. How to check amount of metal in copper and silver plating baths? [Mississippi] (July 10)
48708. Analytical methods for measuring fluoride in water [Iran] (July 10)
49224. How to measure the hardness of a thin nickel coating? [Oregon] (July 8)
19123. How does the width of the scratch affect the corrosion results in salt spray [Belgium] (July 4)
49057. Salt Spray Test v/s Salt Bath Test after Hard Anodising [India] (June 24)
49073. Etching aluminum to reveal heat effected areas of weld regions. [South Carolina] (June 20)
49015. Correlation of salt spray fog test results versus long term atmospheric exposures [Turkey] (June 17)
48722. Etchant for Revealing Flowlines of Aluminum [Germany] (June 13)
48870. Titration phosphoric acid concentration and aluminum in phosphoric acid anodising [Singapore] (June 13)
48933. Duration of salt spray test for trivalent zinc plating [Thailand] (June 5)

5b. WASTE & WASTEWATER TREATMENT, POLLUTION CONTROL

49409. Optimal Conductivity for Flocculant Tank ?? [Minnesota] (July 23)
49395. Chlorides in waste water evaporator destroyed firetube [California] (July 22)
49355. Ammonium Nitrate Treatment [New York] (July 19)
49209. Reduce CO2 content in inlet mix bed polisher [Indonesia] (July 16)
49307. Hydrofluoric acid disposal for small lab [California] (July 14)
49242. Filter press stops at half full [Guam] (July 14)
49216. Disposal of Waste Liquids from Pickling and Coppering Line [Paraguay] (July 11)
49072. Plating Ni from dialysis waste stream [Minnesota] (July 4)
49085. Drying process for waste zinc phosphate sludge [UK] (June 26)
49007. Recovery of metals/chemicals from ion exchange resins [India] (June 17)
49020. Recover gold from used gold cyanide baths [India] (June 13)
48640. Electroplating Cr / Sludge evaporation / Cr emissions? [Canada] (June 13)
48916. Treatment of electroless nickel waste [India] (June 9)
48928. Disposing the sealing solution [India] (June 4)
48867. Recovery of rhodium from waste rhodium plating equipment? [Turkey] (June 3)

5c. SAFETY ISSUES, EMISSIONS, TOXICITY

48607. Exposure to silver [Canada] (May 29)
48115. How to remove hard chrome stains from hands and arms? [Mexico] (April 22)

5d. PLANT & PROCESS ENGINEERING, CONSTRUCTION

49383. Zinc plating beginner asks how to connect rectifier [Venezuela] (July 22)
49368. Making Dummy Cathodes for a nickel sulfamate bath [New Jersey] (July 19)
49318. Why Pulse Rectifiers? [India] (July 15)
49253. Fire related question about Nitro Sanding Sealer [Colorado] (July 14)
49287. Is secondary containment required for Powder coating wash system tanks? [Ohio] (July 11)
49259. Limits for dual laminated piping for sulfuric acid application [Armenia] (July 10)
48941. Brand New 12v / 100Amps Digital Rectifier is not working? [Tanzania] (July 10)
49172. Bus bar power loss calculations [India] (July 1)
49171. Heat limitation for Koroseal lining ? [California] (July 1)
49155. Material of construction for 300m3 HCl Tank? [Indonesia] (July 1)
49128. Suitability of aluminum carts and fixtures for use in high temperature cure oven [Illinois] (June 27)
48413. To remove ferric ammonium ferrocyanide from wastewater [New York] (June 3)

5e. QUESTIONS ABOUT SOFTWARE, SPECS, BOOKS, INDUSTRY STATISTICS, ETC.

49382. Does Black Chrome have a specification [Connecticut] (July 23)
49279. Customs Director needs Composition and HS Code for Tinplates [Afghanistan] (July 19)
49369. Does anyone has operational excellence assessment guidelines [Mexico] (July 17)
49345. International Military Corrosion Standards [Turkey] (July 16)
49061. Help translating a German Plating Spec [California] (July 3)
49146. Do RMS finishes pertain to PVC or plastic, or only to metal? [California] (June 27)
49027. Finish Conversion: Spark Eroded VDI3400 [Michigan] (June 16)
48964. Testing requirement for BRUSH ON chemfilming per MIL C 5541 [California] (June 9)
48915. Finish code SRF-3.30 [Florida] (June 5)

5f. WORLD WIDE WORD OF THE WEEK [LINGO, TRADE NAMES, TRANSLATIONS]

49408. Zinc white trivalent [India] (July 23)
49325. What names do you use for these machines? [China] (July 15)
49239. Thermal browning process [India] (July 9)
49190. KZ FINISHES [Pennsylvania] (July 2)
48963. Needing to know what CRONAK is? [Indiana] (June 6)

5g. CHROMATE REPLACEMENT & THE EUROPEAN END-OF-LIFE DIRECTIVE; Cd, Ni, Pb, Cr REPLACEMENTS.

49381. Is Type II Chem Film RoHS Compliant? [Texas] (July 19)
49306. Is electroplating on 316 SS RoHS compliant? [India] (July 11)
49286. Cadmium vs. other finishes for d-sub connectors [Utah] (July 11)
49227. What is the latest EU regulatory limit for dioctyl sebacate? [Philippines] (July 9)
49218. Can chrome plated plastic form a layer of Chrome 6 over time? [Malta] (July 3)
49189. Need alternative for cadmium plating [Egypt] (July 2)
49136. Passivate per ES-1001 to stainless steel is RoHS compliant? [India] (June 27)
49084. Hex 3/ Hex 6/ Metallic chrome [Australia] (June 20)
49005. Alternatives to decorative chrome plating [Texas] (June 16)
49006. Is Zinc Plate with Sodium dichromate finish RoHS compliant? [India] (June 12)

5h. MOSTLY METALLURGY

49243. Aluminium baffle damage [UK] (July 9)
49170. Stress relieving thin stainless steel deep drawn components [India] (July 1)
48977. High Temperature 316L Stainless Steel Deterioration Problem [Michigan] (June 11)

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