Archives of the finishingcom Hotline

Threads 58000 to 58999

The finishing.com Hotline includes more than 50,000 Q&A's about metal finishing. This page has links to a thousand of them. You may prefer to start at our home page, view recent letters, or search the site.

58000. How to verify that "stainless steel" cookware is really not aluminum, or another harmful metal? [California]
58001. Burning stainless to give it a 'yellow' effect [Guatemala]
58002. Derusting hot dip galvanized nuts [Cyprus]
58003. Want white gold ring platinum and then rhodium plated [Virginia]
58004. Need consultant for Sherardizing process setup [United Kingdom]
58005. Commercial availability of nano composites? [India]
58006. Electrodeposition of gold nanotube in AAO (or PAA) membrane [UK]
58007. Automotive cad re-plating is too grainy [California]
58008. Homemade hot tub - not as smart as I thought! [Mexico]
58009. How to remove stubborn lacquer from coffee table [Idaho]
58010. Industrial coatings for concrete floors in plating shops [Ohio]
58011. Allowable Trivalent Chrome in Hard Chrome Solutions [Ohio]
58012. Hydrofluoric acid was accidentally added to Nickel Strike tank [Florida]
58013. Need fume scrubber 3000 cfm to 5000 cfm for chrome [Georgia]
58014. Gold plating looks more silverish then yellow [England]
58015. How to repair a Waterford sleigh ornament [Texas]
58016. Where to get Zinc counter tops [Colorado]
58017. Can silver be plated out from sulfuric-nitric silver strip solution? [Ohio]
58018. Can change of D.I. resin colour affect the quality of water? [India]
58019. Pretreatment prior to PVD coating on co-cr-mo (f1537) [Malaysia]
58020. Problem with Hardcoat Anodize flaking off [New Jersey]
58021. Need "rubberized" coating on/for zamac pens [New York]
58022. Does Mil-DTL-5541, type II class 1 A imply trivalent chromate? [Michigan]
58023. Activating 304LN stainless steel for plating [Ohio]
58024. We strip our clear anodized bars to get them black anodized, but tapped holes go out of tolerance [Indiana]
58025. Best method to remove buffing compound [Colombia]
58026. Titanium basket as an anode shield [Illinois]
58027. Can't successfully scale-up Electrodeposition from good lab results [Texas]
58028. Electroplating of (not onto) Kovar alloy [California]
58029. Identifying the materials in a fire screen [Australia]
58030. Looking for an Iridium wedding band [Illinois]
58031. Teflon coating on Alumina Tubes to specified thickness [China]
58032. Cleaning Small Parts after Salt Bath Hardening [Pakistan]
58033. Black Passivation Job Coaters Needed [Germany]
58034. Need process line for Tin plating on copper bus bars [Vietnam]
58035. Laser cutting holes in stainless steel, then blending in finish [Ohio]
58036. When is Hydrogen Embrittlement Relief needed if not spec'd [Michigan]
58037. Re-plating parts that have holidays [Michigan]
58038. What is the tolerance when a DFT is specified? [Bahrain]
58039. Dull cadmium plating bath has started giving unwanted brightness [California]
58040. Preventing immersion deposition of copper on steel tubing [Sri Lanka]
58041. Is cleaning Armetale to original state after dishwashing possible? [Colorado]
58042. Mostly white rust spots (some red) on "fresh" zinc plated 1215 steel parts [California]
58043. Corrosion protection of soft aluminum tube in 44% salt water concentration?? [Wisconsin]
58044. PVC based powder coatings [India]
58045. Spill Kits for plating shops? [Georgia]
58046. Chromic acid anodizing of Al7075 T7351 [Israel]
58047. Need Cobra "heel-toe" shifter re-chromed [South Carolina]
58048. What does Passivate "Condition B" mean? [Oregon]
58049. Powder coating adhesion failure after nanotechnology pretreatment [Turkey]
58050. Powder coating finishes: textured, structured, plain [India]
58051. A36 steel requires a high quality matte chrome finish [New Jersey]
58052. Suggestion Required - Stainless Steel Electropolish [India]
58053. Need Copper-Nickel plating on brass parts [Indiana]
58054. Anodized finish: Saturn silver glossy [India]
58055. What happens to acid trapped in pipe before galvanizing [UAE]
58056. Outside diameter are undersized after plating. [Malaysia]
58057. Copper undercoating before nickel plating [India]
58058. Polyolester lubricant and anodized finishes [California]
58059. Can Alodine 1200 be used for Condenser coils? [Wisconsin]
58060. Cylindrical grinding down to mirror finish [Israel]
58061. Stainless Steel: which is more important, surface finish or grade? [Ireland]
58062. What is "eloxadize" finish? [China]
58063. Black Oxide Needs 24-hour Salt Spray Resistance [Mississippi]
58064. How to recognize electrogalvanized vs. hot dipped steel? [Hong Kong]
58065. Safely emptying the galvanizing kettle [Saudi Arabia]
58066. Plater dull nickel plates heat sinks; customer wants bright [Pennsylvania]
58067. Need Plated Zinc castings in Northeast USA [Connecticut]
58068. Dissolving Nickel while leaving Copper Unaffected? [Nevada]
58069. Gold plating Alloy 625 without peeling [Belgium]
58070. Fixing oxidation of stent after vacuum failed in annealing [India]
58071. What type of steel is Nickel-free and Lead-free? [India]
58072. IMDS ID for CED coating? [India]
58073. A co-worker is skipping process steps and maybe making dangerous parts [Canada]
58074. Spring Steel Coloring and Rust Prevention [California]
58075. Best corrosion protection method for steel automotive parts [Virginia]
58076. Cleaning acrylic for better electroless deposition [Missouri]
58077. How is Cyanide Hardening process done? [Pakistan]
58078. Diamonds acquire black haze from masking for rhodium plating [India]
58079. Acid degreaser formulation [India]
58080. How best to replicate brushed steel [Canada]
58081. How to drill EN7 AISI 100: carbide drill bits break [India]
58082. Need Chrome Effect Refinish [New York]
58083. Are all metals food safe? [Michigan]
58084. Hydrogen De-embrittlement after hard chrome plating [India]
58085. Powdercoat Questions left unanswered in 2011 [Australia]
58086. Watts nickel barrel comes out completely black [Colombia]
58087. How to get matte deposit from acid zinc bath [Denmark]
58088. Passivate / Hydrogen Embrittlement [Tennessee]
58090. Gold Plating Repair Needed on Ferrous based flatware [Ohio]
58091. What is the most lubricious and durable finish for my GLOCK? [Idaho]
58092. Can we use a titanium heater in a solution of 120° C. phosphoric acid [Colombia]
58093. Anomaly in Electroless Nickel Plating [Alabama]
58094. ASTM, NACE or SSPS standard for allowed amount of rust on new steel [Colombia]
58095. How will Sulfamic Acid affect Stainless Steel, Ductile Iron and Carbon Graphite? [Michigan]
58096. Chemical etching in Bangalore or Chennai [India]
58097. Looking for plater to handle computer chassis parts [Maryland] (12/14/11)
58098. How to recover Silver from silicone rubber containing silver [India]
58099. Weld Hasteloy c276 to 304 stainless steel? [England]
58100. Difference between LHE Cad vs. Ti cad [USA]
58101. Need Cooking Surface plated with Nickel vs. Chrome question [Rhode Island]
58102. Effect on Electropolish of carbon content in 304 stainless [California]
58103. Need Gold and Silver Brighteners [Ecuador]
58104. 24k gold plating for I-PHONE 4 [Saudi Arabia]
58105. Is diffused nickel-cadmium plating a hazardous material [California]
58106. Ferric Chloride use in waste treatment [North Carolina]
58107. Bronze plating problems with O6 Tool Steel [California]
58108. Silver plated brass electrical contacts are fouling [Korea]
58109. Zinc plating lasted only 5 years [India]
58110. Rhodium Plated electrical contacts get spots (burns?) [Oregon]
58111. Backside of wafers are dielectric but still become Electroless Nickel plated [Idaho]
58112. Which acid dissolves iron but doesn't attack copper, silver, or zinc? [India]
58113. Brass and nickel plating pendants [South Africa]
58114. How to make steel look like oil rubbed bronze? [Washington]
58115. Difference between Mil-s-A8625 Type II Class 2, and BiFluoride etch Alum Anodize [California]
58116. Aluminized spray to correct undersized parts [India]
58117. Thumbrule for checking sulphuric acid conductivity during anodising by its color or appearance [India]
58118. Wash Primer and Mil-C-5541 [Texas]
58119. Need de-chroming of aluminum hydraulic hand controls [United Kingdom]
58120. Is there a 'strike table' for what platings can be done on what substrates? [Florida]
58121. Corrosion resistance tests for AMS2700 passivated stainless [Israel]
58123. Tin plated copper wire 'dusts' when drawn [India]
58124. Black traces on electropolished parts at jigging area [India]
58125. Want stainless water bottles to look like anodized aluminum [California]
58126. Need anodizing of a 40' foot long aluminum tube [California]
58127. Need animal bone coated/plated for necklace [California]
58128. Seeking BA furnace manufacturer [India]
58129. Continuous cooling of acid bath for anodising aluminium [India]
58130. Cost and durability of nickel plating versus chrome plating [California]
58131. Cadmium plating attempts lead to black smut [Montana]
58132. Removal of Artificial (dark/black) patina from antique belt buckle [South Carolina]
58133. How to check the chromate content in dichromate solution [Pakistan]
58134. Electrostatic relationships in powder coating [Minnesota]
58135. Differences between black oxide and phosphating processes [India]
58136. My silver is now a copper color from soaking it in ammonia [Maryland]
58137. What is suitable to store Nitric Acid? Is it advisable to store it in SS316? [India]
58138. Black spots on zinc plating during salt spray test [Pakistan]
58139. Dross & lead on galvanizing kettle floor [Brazil]
58140. How to remove new silverplating from old pewter? [North Carolina]
58141. Excessive thickness variations when hard chroming with old plating solutions [China]
58142. Using lead to repair dents in copper before gold plating [France]
58143. Caustic Etch / Deox Versus Tri-Acid Etch [California]
58144. Looking for nice Rhodium plated Sterling silver ring mounts [Thailand]
58145. Chrome plating - anode slurry [Florida]
58146. Pitting of aluminum parts when stripping and rechroming bores [Illinois]
58147. Coating aluminium on glass beads by PVD process [India]
58148. Fume Suppressant for Chromic Acid Help and Tensiometer Advice [Maryland]
58149. Chromic Anodize Analysis Conundrum [Georgia]
58150. Sulphuric Acid Consumption in Hard Anodizing [India]
58151. Racking for anodizing of flat aluminum sheets [Rhode Island]
58152. Scrubber to extract the chromic acid [UAE]
58153. Low chrome deposit [California]
58154. Corrosion Resistance of Hardcoat Aluminum with Hot Water Seal [Rhode Island]
58155. How to measure the thickness of Copper Strike on Copper? [China]
58156. Protection of stainless on a construction site [Ireland]
58157. Food grade powder coating [Oregon]
58158. Stainless steel coating/colouring [South Africa]
58159. Cleaning aluminium castings and carbs on Honda CB500/4 [New Zealand]
58160. Care of GAB GENSE 18/10 cookware that I recently inherited [Illinois]
58161. How to repeatably darken pennies across the whole spectrum from bright to black for art project? [California]
58162. Recoating or restoring silver coating on antique glassware [California]
58163. Aluminium vs Galvalume roofing [India]
58164. Must galvanized hydrant pipes be painted before burying? [Saudi Arabia]
58165. How to tarnish or "age" new electroless nickel plating [Florida]
58166. Electro cleaning vs. electro polishing of gold jewellery [India]
58167. Welding issue on copper metal with dull nickel plating and tin plating [India]
58168. Best Practice on drying Specimen after Salt Spray Testing [Australia]
58169. Finish/Coating for Brass coated steel [Massachusetts]
58170. Tapping issue with powder paint [Canada]
58171. Anomalous defects on nitrided parts [Italy]
58172. Heat treat 6061 T6 for grain structure [Washington]
58173. Removing ink from ABS plastic [Florida]
58174. What makes dry tumbling media break down faster than usual? [California]
58175. Selecting type of plating for BBQ charcoal basket [California]
58176. ABS vs Acetal gears [Pennsylvania]
58177. UBAC copper plating of stainless steel cavity for dark matter experiment [California]
58178. Supplier needed of etching fluid solution for stainless steel/electro-static [New York]
58179. Durable matte black plating for an already plated cast Aluminum D-Sub connector shell [California]
58180. White 'dusting' on nitric acid passivated 304L parts [Colorado]
58181. Alternative to Nickel Plating for pump seal wear resistance [Michigan]
58182. NEED SMALL USED MASK WASHER [Indiana]
58183. Seeking Electroless Nickel & Anodizing on an aluminum piece-Mil Spec job [Virginia] (1/17/12)
58184. Stainless steel BBQ grills: is 304 or 420 better? [Connecticut]
58185. Is Black oxide NSF approved? [Vermont]
58186. What type of plating or passivation process for 300 hours salt spray resistance? [India]
58187. Looking for a deburring and polishing machine for stainless steel sheet [China]
58188. Zirconium and iridium plating of copper [Maryland]
58189. Nickel and cadmium separation [Iran]
58190. Plating automotive bearing shells to increase outside diameter by .0005" [Missouri]
58191. HAE Post-Treatment Dip [Pennsylvania]
58192. White lines after Hardcoat Anodizing [Michigan]
58193. Brass staining (probably due to cleaners and lubricants) [South Africa]
58194. Electropolishing parameters for maximum burr removal with minimal stock removal [Ireland]
58195. Aqua-regia Process Loss [Thailand]
58196. How to do NiB electroless plating on top of NiP electroless nickel plating [Turkey]
58197. Machining an anodized coated piece of aluminum [Massachusetts]
58198. Hexavalent chrome product replacements (Meets MIL-C-5541 Class 1A) [Chile]
58199. Hard chrome won't plate [Iran]
58200. Zinc-Nickel Brush Plate Solution [Illinois]
58202. Galvanic corrosion: Zinc-Nickel plated steel in contact with copper [India]
58203. RoHS Compliant Thermal Barrier [California]
58206. Polyester based high-gloss coil coating is too rough [Saudi Arabia]
58207. Coating brass bullets and casings to prevent tarnishing [Florida]
58209. Evaporation for plating waste water [Texas]
58211. Fine polishing, mirror finish with automatic grinder/polisher [United Kingdom]
58212. Electropolishing Zirc-2 for nuclear applications - sulfur contamination question [Virginia]
58213. Increasing cutting tool life by teflon impregnation [California]
58214. Anodizing aluminum wire for insulation [Minnesota]
58215. Will plated ABS be watertight? [Texas]
58216. Will polished copper retain luster at 1500° F? Gold plated? Chrome Plated? [Egypt]
58217. Copper paint for heat control [USA]
58218. Yellow chromate and yellow passivate the same? [New Jersey]
58219. Can't get chrome plating to adhere to sandblasted copper [India]
58220. How to plate copper-phosphorus alloy onto copper? [Ohio]
58221. Electroless nickel produces dusty finish; Bright copper deposit is rough [South Africa]
58224. Chrome Remover Agents [India]
58225. Powder coating over zinc plating [India]
58226. How to do our first melt in new galvanising kettle [South Africa]
58227. Copper anode consumption [India]
58228. Why must mild steel be dull coppered? [India]
58229. Blackening aluminum without paint [Colorado]
58230. Bolts for aluminum brackets - SS or Galvanized? [St. Thomas, U.S. Virgin Islands]
58231. Electroless plating of "other" metals [Colorado]
58232. Bluing coming off my Rueger [South Carolina]
58233. Dacromet high strength bolts in contact with green concrete [India]
58234. Surface of hot dip galvanizing bath is "creamy" [Brazil]
58235. Clear cadmium over Electroless Nickel blisters at masked thread holes [California]
58236. Chromium contamination limit in Cyanide Gold Bath [Arkansas]
58237. How much metal must be removed to achieve a given Ra value? [England]
58238. Good way to harden forming mandrels? [Canada]
58240. Chrome & paint Effluent Treatment [India]
58241. Water contaminated with Paint Stripper [Florida]
58242. GI sheet vs. CRCA for rust prevention [India]
58244. Inconsistent appearance of zinc plated with black chromate parts [Illinois]
58245. Anodizing Process Risk Management [Florida]
58248. Is this just tarnish -- or a strange finish? [Pennsylvania]
58249. Can worn jewelry be dipped in silver? [New York]
58250. Aluminum impurities in Nickel Sulfamate bath [New Jersey]
58252. Effect of PVC coating on Galvanized wire [India]
58253. Why don't my 18-8 finish washers shine? [Georgia]
58256. Can inspection methods affect a passivated component? [England]
58257. Reaction between Stainless Steel and Tantalum in Hydrochloric Acid [England]
58258. Carbon nanotube coating on steel & aluminum textile machinery parts [India]
58259. Electro chemistry [India]
58260. Does Oxi-Clean damage an anodized coating? [Alabama]
58261. Zinc Plating and black/yellow/blue chromating waste disposal concerns [South Carolina]
58262. Instrumentation to measure tin plate surface finish texture/roughness [Texas]
58263. Refinishing antique phone booth [Texas]
58264. Aluminium Anodising with TEA (triethanolamine) [India]
58265. What parameters can affect the Rmr (Tp) ratio on an anodized surface? [England]
58266. Stripping process for "Forever Nickel" [Colorado]
58267. Analytical methods for Rochelle salt based HVOF stripping solution [Canada]
58268. Does alodine without hexavalent chromium contain any color? [Canada]
58269. Can I use graphite anode in copper plating [Vietnam]
58270. Unusually high current while anodizing [Utah]
58271. Streaks in clear anodized 3003 Aluminum Alloy [Texas]
58273. Urgent question: Surface roughening/coating for welding prep [Pennsylvania]
58274. Steel Wool for Copper Removal from large rinse tank after copper strike [Michigan]
58275. Cadmium plating waste products [Malta]
58276. Painting of Powder Coated Material [India]
58277. Powdercoating exterior handrails [New York]
58278. Chrome Plating: White streaks on the ends of the rotogravure cylinder [India]
58279. Can a pH 1.0 buffer be made of HCl and nothing else? [New York]
58280. Bleed Through in White Powder Coat [Kentucky]
58281. Cobalt ions more difficult to remove from wastewater than nickel? [Mexico]
58282. Anodized aluminum or titanium for high temperature [Canada]
58283. 1100 Aluminum staining brown spots of discoloration during the cleaning process. [Pennsylvania]
58285. Shelf life of Rhodium Plating Solution [Canada]
58286. Is 'white' and 'black' rust considered 'ferrous corrosion'? [Oklahoma]
58287. Are the parts really Hot Dipped Galvanized as spec'd? [South Carolina]
58288. Questions about plating aluminium [Spain]
58289. Feasibility of doing zinc phosphating at high temperature [India]
58292. Need to get Corten steel sculpture back to original polished silver look [Victoria-BC- Canada]
58293. Excess fluoride consumption in cold sealing bath? [Sri Lanka]
58294. Cleaning slag from laser cut spiral tube [Ireland]
58296. Immersion Silver solderability issues [New Jersey]
58297. Cold Galvanizing a water splash ride at a Amusement park [India]
58298. Oil mark issue in satin nickel plating [Malaysia]
58299. Arcing incident in hard chrome plating [Ireland]
58300. "International Standard" for tolerance on 1 micron of Gold Plating Jewellery? [Thailand]
58303. Need Tantalum Coating on Silver [Italy]
58304. Best way to blacken newly etched framing squares [Maine]
58305. Removing gold plate from aluminum wheels [Texas]
58306. Tank integrity with respect to passivation process [Connecticut]
58307. How to prepare hot rolled sheet for priming & painting? [India]
58308. Paint for soft thermoplastic elastomer fishing baits [Poland]
58309. Issues with passivation of 304L SS machined parts [Mexico]
58311. Alternative clear coat for die cast zinc [New York]
58314. How to make glass hydrophylic with nano titanium dioxide coatings [England]
58315. Bare spots for CAD Plated Bolts [California]
58316. Liquid masking for anodizing [Pennsylvania]
58317. How to make silicon rubber parts with metallic look? [Australia]
58319. Nickel plating replacement on hardware [Iowa]
58320. Am I having an allergic reaction to galvanized steel? [Oregon]
58321. Nickel surface treatment solution wanted [South Korea]
58322. Stainless steel discolouration after washing off laser etching solution [Canada]
58323. Protecting a cedar log headstone from corrosion [Kansas]
58324. What is VW 13750 t330 finish? [Connecticut]
58325. Burnishing & corrosion-proofing zinc diecastings in one step [Indiana]
58326. Flaking of chromate on zinc plated crimped ferrules [Ohio]
58327. Anodized reflector doesn't read enough ohms [Egypt]
58328. Composition of MIL-A-8625 - Type 1C anodizing bath [Brazil]
58331. Zirconium hydroxide as a coloring agent [India]
58332. Artistic plating over zinc die cast buckles [India]
58333. Why doesn't stannous sulfate (SnSO4) dissolve in 0.3M sulfuric acid? [New York]
58334. MSA consumption in tin plating lines [Germany]
58335. Blackening using ammonia nitrate without sodium hydroxide [Canada]
58336. Cadmium Analysis - Cadmium Cyanide Bath [Colorado]
58338. What to plate on our tobacco pipes? [California]
58339. HDG for Threaded Rods for 12 ft [India]
58340. Zinc-cobalt plating won't survive 96 hour salt spray without white rust [India]
58341. Cooling system for alkaline zinc plating solutions [Colombia]
58343. Thermal destruction of cyanide fumes [Maine]
58344. Is the chipping an anodizing or shipping problem? [Georgia]
58345. Setting up our electropolishing system [South Africa]
58346. Suitable material for Cl2 vaporizer tubes [Indonesia]
58347. Book suggestion for chromic acid anodizing [Georgia]
58348. Food coloring stain on polished granite headstone [Massachusetts]
58349. Buying a badly corroded building previously used by pool supply company [California]
58353. Tank filling question [Pakistan]
58354. Workshop/seminars on Electroless Nickel Plating? [Alabama]
58355. Black Oxide Pitting and Intergranular Attack (IGA) Inspection Process? [California]
58356. Plating Steel and Aluminum die cast [Alabama]
58357. Seeking matchplates that can be finished as samples [Illinois]
58359. Stripping paint from antique Galvanized windmill [California]
58360. Clear Epoxy Bathroom Floor [Nevada]
58361. Sealing polished aluminum against oxidation [Michigan]
58362. Using Record Album Covers and Clear Coat as a Floor [Wisconsin]
58364. Electropolishing of case hardened 304 [Ireland]
58365. Anodic alkaline cleaning and anodic acid etching [Ireland]
58366. How to plate aluminum & white metal? [New York]
58370. How to define thickness of teflon coating on heat coil? [China]
58374. Sixth-grade student needs Sulfuric Acid [California]
58375. Arsenic reaction for decoration of nickel objects [Malaysia]
58376. Best Way to Remove Iron Phosphate? [Kansas]
58377. International Specification for Chromate Conversion on Aluminum Must be Non-Hexavalent [New Jersey]
58378. Inconsistent Salt spray Results between Two Test Labs [Germany]
58379. How to activate idled pre-treatment solutions? [Philippines]
58380. How to Increase pH in Citric Acid Passivation Tank [Washington]
58381. Hot Dip Galvanizing of parts that trap water [Canada]
58382. Pitting of 2000 series aluminum from type II sulfuric anodize [Connecticut]
58383. Passivation of Type 304 Stainless Steel for Increased Adhesion to Thermoplastic [North Carolina]
58385. LM6 Casting - Surface treatment finish [India]
58386. Need to reduce galvanizing thickness to 85 microns [Nigeria]
58387. Cost of chrome plating chemicals per area per thickness on plastic [China]
58388. Nickel fluoride disposal ? [India]
58389. Cast iron parts rusting before powder coat [Washington]
58390. Hydrogen Embrittlement Relief required after electropolishing or passivation by AMS 2759 [California]
58391. PVD Chroming of Glass for EMI Shielding [Texas]
58392. Nickel-Chrome plating is Blistering / Peeling when Stressed [Illinois]
58396. Issues in Cadmium plating with yellow passivation [India]
58397. Best process to color stainless steel eyeglass frames [New York]
58398. Teflon Black Coating vs. Black Nickel plating [Poland]
58399. Pitting on Zinc Plated Steel [California]
58400. Why does Nickel corrode in hot, medium, and cold water? [Canada]
58401. Dry film lubricant over a zinc chromate? [California]
58402. How to make stainless steel rust [Arizona]
58404. Specification EN 2831:1993 Slow Bend Test for Hydrogen Embrittlement [Illinois]
58405. Lacquering over a non-electrolytic brass coating [Turkey]
58406. Reduce residual PO4- ion on electroless nickel plated parts [China]
58408. Need complete chemical-related information on galvanizing process. [Saudi Arabia]
58409. 13.5 pH requirement for Seal on Anodizing [Tennessee]
58410. Do Electroplating tanks need grounding (or) earth? [India]
58411. Painting on PVC Coated Material [India]
58412. Electro-phosphating on steel wire [India]
58414. Is a yellowish/greenish (sodium dichromate) appearance on galvanized structures a process defect? [Malaysia]
58415. Finishes with Pantone Colours on stainless steel [Ireland]
58416. JIG - what does it mean in galvanizing? [Poland]
58417. Passivation of EXTERNAL surface of air cooler fin-tubes after cleaning [Indonesia]
58418. Why does stainless steel pipe need a blasted finish? [Azerbaijan]
58419. Chemical polishing of aluminum wheels to reduce mechanical polishing [New York]
58420. Jewelry Cleaner CAUSED Tarnish? [Pennsylvania]
58421. Does imitation jewelry need dull nickel before bright nickel to resist corrosion? [India]
58422. Nitric acid changed colour of aluminum sheet dipped overnight [India]
58423. Predicting coating life on the basis of corrosion rate of electroplated bolts [India]
58424. How to Remove Coating from a Polyolefin Thermoplastic Elastomer [Michigan]
58425. How is Tin Plating done on Copper Lux ? [India]
58426. Pad printing over nickel acetate-sealed anodized aluminum [Arizona]
58427. Removing "water spots" from electroless nickel plated parts [California]
58430. Copper deposit is growing on plastic surface during electrowinning [Colombia]
58431. Need samples of yellow chromate and chrome for easy I.D. [Maryland]
58432. Considering blackening of corrugated steel roofing [California]
58433. How to test the chromium level in stainless steel? i.e., 12.4% chromium 410 SS [Massachusetts]
58434. Mil-DTL-5541 Chem Film in yellow trivalent [Pennsylvania]
58435. ABS mechanical properties after chrome plating [Illinois]
58436. Scaling Buildup in Nickel Sulfamate Plating Process [Utah]
58437. Chrome plating over other bases than nickel [India]
58438. If base metal is shotpeened before plating, must it be shotpeened again if plating is reworked? [Canada]
58439. Semi-bright nickel plating is coming out black [Macedonia]
58440. Best sulfuric acid concentration and iron content for pickling [Tunisia]
58444. Aircraft cutaway drawing on a sheet of anodized aluminum [Oklahoma]
58445. Electroless Nickel Plating of Bi-Metallic Copper-Aluminum Chassis [Arizona]
58446. Watermarks on Cadmium Olive Drab Finish [UK]
58447. Heat treated parts erupt with gas during HCl acid washing [Korea]
58448. Heavy brass plate for antique cars that looks like solid and can take a polish?? [New Zealand]
58449. Nickel brush plating a copper sink in place [Florida]
58452. Nickel peel-off on Siclanic (Cu/Ni/Mg/Si alloy) [India]
58453. Definition of "Shop Galvanize" [Florida]
58454. Does zinc phosphating require fume scrubbing? [Connecticut]
58455. Electropolishing 420 stainless steel [Colombia]
58459. Analysis method to check Palladium size and condition under scope [Malaysia]