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This page contains Technical inquiries; please avoid commerciality.
For Commercial inquiries, please see our Looking for a Jobshop page, and Looking for Products & Services page.

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

53683. Chemical cleaning [Greece] (November 20)
53682. Looking for conductive matte black coating/plating for stainless steel [Singapore] (November 20)
53631. Pin hole corrosion in 316 stainless steel [UK] (November 19)
53596. Best finish for tubular steel park benches? [New York] (November 17)
53618. Best coating for butterfly valves? [India] (November 13)
53595. Conductive touch up plating for carbon steel NEMA box [Florida] (November 11)
53468. Seeking alternative to painting for coloring SS [Texas] (November 11)
53579. Difference between painting, powder coating and hot dip galvanizing [India] (November 10)
53543. Matching dark blue/black finish on 6al-4v titanium and 304 stainless [Indiana] (November 6)
53527. Compatible coatings with INVAR parts [Spain] (November 4)
53409. Which blackening coating to use [Spain] (November 3)
53310. What kind of stainless steel is resistant to 93% sulphuric acid? [Finland] (November 2)
53482. Deoxidation of steel tanks after welding and dye penetration [India] (October 30)
53368. 416 SS, Images and data for salt spray testing (fog) [Connecticut] (October 30)
53470. What grade of stainless for meat cooker using calcium chloride [South Africa] (October 27)
53469. Refinery pipe coatings to minimize soot build-up [Hong Kong] (October 27)
53457. High Temp Coating for Aluminum? [Arizona] (October 27)
53441. Powder Coating or E-coating which has a lower environmental impact [Connecticut] (October 26)
53411. "Hot Dip" or "Electro Galvanizing" - Which will weld better? [India] (October 26)
53410. Visually marking of large anodized aluminum pipes [Michigan] (October 26)
53354. Using standard copper electrical sockets in chlorine storage building [Egypt] (October 21)
53312. Finish for AISI 1095 blue tempered steel - flat spring application [New York] (October 21)
53374. Nickel plated aluminium to reduce surface roughness? [Italy] (October 19)
53277. Coating on Aluminum cylinder bore for low friction [Canada] (October 12)
52981. Why bronze needs cosmetic chrome/nickel plating? [Missouri] (October 12)
53286. Preventing 'black wire syndrome' with sacrificial anodes [Texas] (October 9)
53281. Acceptability of stainless steel connectors with Aluminum backshells [Florida] (October 9)
53280. Removing cement from aluminum baking plate [India] (October 9)
53268. Rusting of outdoor cabinets [New Jersey] (October 8)
53217. Rotogravure cylinders have a short life [Mexico] (October 7)
52944. Plating shop needs to do Onsite Plating for customer [India] (October 6)
53204. Searching for Corrosion Resistant and Wear Resistant Hand Tool Finishes [California] (October 6)
53205. E coating vs Zinc plating, long term which is the better option? [Ohio] (October 1)
53203. ACP Lower Surface Coating [Egypt] (October 1)

1. PREPARATION . . .

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

53681. Grinding and polishing method for surgical instruments made from SS 410 [India] (November 20)
53658. Tolerance band for finish: Rz=10um AND Rzmax=20um [Ohio] (November 19)
53652. How to polish a circular o-ring surface at aluminum for vacuum chamber [Malaysia] (November 19)
53619. Laser edge scale removal [Iowa] (November 13)
53594. Surface roughness (polishing) of cast iron bearing guide [Iran] (November 11)
53585. Deburring Titanium [Virginia] (November 10)
53571. Automatic inline tube polisher to achieve mirror finish [California] (November 9)
53501. How to polish silver plated copper wire to a low RMS down to 0.010" dia. wire? [Massachusetts] (November 3)
53278. "Mirror finish" -- is there a standard definition? [California] (October 29)
53202. Mirror finishing small detailed 304 or 316 stainless steel parts [Nebraska] (October 29)
53309. How to do Stainless Steel No4 finish touch-up? [Singapore] (October 29)
53372. How to get mirror surface finishing (Ry 0.4) on Stainless Steel rod, dia. 8 mm ? [Malaysia] (October 21)
53382. Size of shots for cast iron surface finish [India] (October 21)
53326. Appearance of #4 finish on stainless vs aluminum [California] (October 19)
53317. Shot Blasting of chrome [India] (October 16)
53255. SHOTS FOR BLASTING BOTH STAINLESS STEEL AND MILD STEEL [India] (October 15)
53201. Contamination of steel shot from titanium [Italy] (October 12)
53224. Glass blasting process and satin plating [India] (October 6)
53200. Restore welded stainless plate [Sweden] (October 6)

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

53648. On-site 'out of the tank' Electropolishing process [India] (November 20)
53666. Setting up a passivation station in our shop [Illinois] (November 20)
53651. Stainless steel tarnish is contaminating food product [Washington] (November 19)
53573. Austenitic SS Passivation Problems [Massachusetts] (November 18)
53534. Passivation / Electropolishing : Can we describe the atomic mechanisms/chemistry in detail here? [California] (November 18)
53617. Rust-preventative treatment for cast iron handwheels [UK] (November 13)
53135. Need details of "the 7-tank process" [India] (November 12)
53467. Surface Tension in Acid Pickling and Chemical Milling for Titanium [Oregon] (November 9)
53408. Mold Cleaning Process [South Africa] (November 6)
53536. What causes Manganese Phosphate to not adhere? [Illinois] (November 6)
53353. Must we remove heat treatment discoloration on stainless steel? [Minnesota] (November 3)
53456. Is it Industry Standard to passivate 316L Stainless Steel after welding? [Washington] (November 2)
53361. Removing gray scale on hot-rolled steel [India] (November 2)
53480. Surface finish is roughened by phosphating [India] (October 30)
53429. Which is a suitable process before painting [India] (October 30)
53427. Passivation - AMS 2700C vs ASTM A967 [California] (October 26)
53333. Passivation and laser cutting/stamping of stainless steel [UK] (October 26)
53313. Etching gold through micro-holes of copper [Ohio] (October 23)
53365. Sheetmetal quotes came in with different coating applications (Zinc Chromate/Iron Phosphate) [New York] (October 20)
53182. Failure of phosphated castings in salt spray test [India] (October 15)
53053. Acid Pickling of Brass and Copper Forgings [India] (October 15)
53251. Passivate 13-8 stainless with citric acid [Missouri] (October 12)
52552. Etching Textures in Shoe Sole Molds [India] (October 12)
53143. Pickling 17-4 SS -- specification [Pennsylvania] (October 9)
53142. Passivation, electropolish, or nothing for 301 and 17-7? [California] (October 9)
53052. Passivation of investment cast stainless parts [Colorado] (October 7)
53223. Carbon Steel Etching [Malaysia] (October 6)

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

53032. Stop off Lacquer for Nickel Plating [India] (November 4)
53358. What type of urethane or rubber should be called out for masking holes during powdercoating? [Michigan] (October 16)
53316. Powder coat masking problem with aluminum [Colorado] (October 16)

2. INORGANIC FINISHING PROCESSES . . .

2a. ANODIZING AND LIGHT METAL TREATMENTS

53680. NAS 4006 coating of aluminum onto other metals [Connecticut] (November 20)
53679. Staining aluminum without carbon [Michigan] (November 20)
53663. Anodizing Thin Aluminum to Produce Non Gas-Permeable Oxide [Canada] (November 19)
53638. Chromating and machining pressure die casted aluminium [India] (November 18)
53351. Oxalic Anodizing Performance vs Mechanical Finishing process [Texas] (November 18)
53639. Does Sanodye Red RLW color conforms to Fed Std FS31400? [Singapore] (November 17)
53493. Machine before or after anodizing [Connecticut] (November 16)
53582. "Time Window" for Sealing after Anodize [New Jersey] (November 16)
53593. Black anodizing is not UV stable [Taiwan] (November 12)
53570. What levels of pH are a problem for anodized aluminum? [Texas] (November 10)
53548. Anodize is cracking [Wisconsin] (November 10)
53518. How to achieve satin finish on anodized aluminum [Michigan] (November 9)
53555. Variability in Finishing Voltage and Thickness when Anodizing 6061 at Constant Current [Arizona] (November 9)
53554. Is surface conductivity grounds for rejection of anodizing [Oregon] (November 9)
53465. Grainy, Mottled Type 1 Anodize [Arizona] (November 3)
53476. White spots in Black Anodise [UK] (November 3)
53440. Wear of anodized aluminum on anodized aluminum [California] (October 30)
53140. Incomplete Anodizing Coverage [Ohio] (October 26)
53350. "Dust" on anodized parts [Florida] (October 26)
53426. What is weight of Chromate Conversion Coating Class 3 A [Mexico] (October 23)
53425. Measuring the etching time in HF HNO3 prior to Anodising [UK] (October 23)
53357. Slime on surface of anodizing tank [Oregon] (October 19)
53352. Interference fit parts before anodizing [Minnesota] (October 19)
53157. Surface of aluminum carts powdering [Canada] (October 15)
53199. MIL-A-8625 typeII, black dye bleed out [Massachusetts] (October 12)
53230. Etching aluminum foil for painting while avoiding embrittlement [Pennsylvania] (October 9)
53211. Type III color chart [Alabama] (October 6)
53173. Trivalent on anodized 6061 aluminum, in a marine environment? [Massachusetts] (October 6)
53237. Need to achieve an 'optical matte black anodize finish' [UK] (October 6)
53206. Sprayer for Alodine 1200S [Missouri] (October 1)

2b. ELECTROPLATING and ELECTROFORMING

53665. Removal of Carbon "smear" from contact pins prior to Ni Au Plating. [California] (November 19)
53565. Electroplated Au as PCB surface finish? [Michigan] (November 19)
53659. Peeling nickel plating on MS and nickel component [India] (November 19)
53656. Plating Nickel Cadmium Diffused [Mexico] (November 19)
53561. A portion of part did not get chrome plated [Israel] (November 18)
53644. Avoiding "Over Reverse" in Hard Chrome Plating [Ohio] (November 18)
53634. Zinc Plating Spec for Ocean Voyage [Illinois] (November 18)
53621. Corrosion resistance of chrome plated 316 stainless steel [Wisconsin] (November 16)
53620. Confusion on chromate treatment for Cadmium [Canada] (November 16)
53533. Zinc plating failures [India] (November 13)
53616. Copper on Zinc Plating - Cyanide [Utah] (November 13)
53604. Small plating shop looking to expand [Florida] (November 12)
53389. Enlarge the crystal in 24k gold electroforming [Hong Kong] (November 12)
53085. WHEEL RIMS PLATING [India] (November 11)
53545. Effects of electroplating Silver on the Hardness of Steel [New Hampshire] (November 10)
53488. Tin/Silver Plating Solution: Acidic Vs. Basic [Washington] (November 6)
53479. Plating to prevent galvanic corrosion between 6061 Al and 18-8 stainless steel [Oregon] (November 6)
53542. Brushing will spoil corrosion resistance of Brushed Nickel finish [California] (November 6)
53537. Tin-Zinc Whiskers - Less Likely Than Pure Tin or Pure Zinc? [Illinois] (November 5)
53516. The reason for tinning of copper busbar [India] (November 5)
53515. Cause of white powder on cadmium or zinc plated components? [India] (November 5)
53514. How to achieve different colors of plating for jewelry [India] (November 5)
53532. How to eliminate Black marks in zinc plating [India] (November 4)
53522. Treating and Plating on Tellurium-bearing Copper [Texas] (November 4)
53517. What are the spots on unplated ID of plated parts and how to stop them [Ohio] (November 4)
53508. Problems with de-wetting while "Tin / lead" dipping Alumel and Chromel contact pins [UK] (November 3)
53423. Copper plate a Type K Thermocouple [Indiana] (November 3)
53496. Electroforming a complex shape in thick copper [Texas] (November 2)
53484. Nickel S rounds -- is Inco sole source? [Michigan] (November 2)
53407. Unexplained pH shift in nickel sulfamate bath [New Jersey] (November 2)
53378. Random Brown Stains on Decorative Chrome [New Zealand] (November 2)
53428. Copper Plating Steel parts followed by Silver "Flash" [Ohio] (October 31)
53459. Advise for someone planning to buy existing plating shop [California] (October 29)
53454. Tin plating turning dark [Illinois] (October 29)
53455. Electrogalvanizing quality check for steel threaded bolts [Sri Lanka] (October 27)
53366. Please explain Black Chrome finishing [Virginia] (October 26)
53235. Technical help for Nickel Barrel Electroplating [India] (October 26)
53439. Plating aluminum to allow for solderability [Arizona] (October 26)
53438. Excess problem on the bright tin [Thailand] (October 26)
53437. Zinc Plating on Stainless Steel P.E.M [Oregon] (October 26)
53436. Problem in silicate base trivalent passivation [India] (October 26)
53424. How long Gold Plating over brass will last? Will the zinc discolor plating? [Texas] (October 23)
53362. Faster dissolution of tin anode at the top of the electrolyte thins down and cut-off [India] (October 23)
53349. Electroplating tin plate strip [UK] (October 21)
53388. Brown sludge in cadmium cyanide plating solution [UK] (October 20)
53387. Chromium plating over Alballoy or Miralloy [Minnesota] (October 20)
53384. Preplating before deep drawing [California] (October 20)
52393. Gold Plating on Slightly Oxidized Copper Surface [Taiwan] (October 19)
53186. White spots under Ti-Cad plating [Italy] (October 15)
53265. How will zinc coated steel bolts age? will they change color? [Massachusetts] (October 15)
53263. Keeping Zinc Finish Bright inside buildings [UK] (October 15)
53245. Welding before plating or after [India] (October 15)
53261. Thickness guideliness for copper or nickel over brass [Connecticut] (October 12)
53295. Zinc migration test methods [Iran] (October 12)
53274. How to overcome "Star Dust " issue in decorative chrome plated aluminium (LM24) parts [India] (October 12)
53249. Problem with Woods Nickel Strike [Arizona] (October 12)
53218. Conductivity of plated steel vs stainless springs [Vermont] (October 12)
53216. Problems with copper foil electroforming process [Utah] (October 12)
53288. Is cadmium plating resistant to H2S? [Texas] (October 12)
53284. How can I verify heat treat scale has been removed prior to chrome plating? Heard of Open Circuit Potential [Canada] (October 12)
52798. Hard chrome plating structure [India] (October 9)
53234. Black spots observed on my Zn trivalent plated steel components [India] (October 9)
53242. Need expert advise on reducing/ eliminating zinc plating defects [India] (October 7)
53207. Hard chrome plating inside the cylinder [India] (October 6)
53188. Decorative Chrome finish defect: speckle [Pennsylvania] (October 6)
53166. Nickel plate as a corrosion barrier on stainless operated at high temperature. [Canada] (October 6)
53131. Using a pencil to remove corrosion from Cadmium plated surfaces [Afghanistan] (October 6)
53236. Matte colour hard chrome finishing [Malaysia] (October 5)
53183. Adherence of Electro Formed Nickel to Low Ra Steel [New York] (October 2)
53176. Delayed blistering problem in zinc iron plating [India] (October 2)
53118. Silver plating on titanium based alloys [India] (October 2)
53104. Understanding Watts bath operation [Colombia] (October 1)

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

53672. Electroless nickel plating of carbon/epoxy composites [New Hampshire] (November 20)
53576. Adhesion failure of Electroless Nickel over Sulfamate Nickel [India] (November 19)
53324. Copper strike [California] (November 5)
53513. Electroless Nickel plating thickness for ABS plastic [California] (November 5)
53453. EN boron color and properties [France] (November 3)
53405. Pitting problem in electroless nickel-boron plating? [Turkey] (November 3)
53464. Peeloff problem of electroless nickel from sulphamate nickel. [India] (October 29)
53330. Can we get EN with teflon that isn't grey? [France] (October 27)
53406. Electroless Nickel deposit rates [California] (October 27)
53348. Clear zinc vs. electroless nickel ... a conductivity question [Oregon] (October 19)
53337. EN heat treatment on zamak [France] (October 19)
53327. Is copper underplate required for electroless nickel plating? [Canada] (October 16)
53048. Pre-treatment for cast iron substrates in EN plating [Turkey] (October 7)

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

53359. Vacuum plating results in more thickness than bargained for [Taiwan] (October 20)
53320. Problem in getting high vacuum [India] (October 19)
52489. Trying to do Black PVD Coating [California] (October 6)
52281. How to coat ID of borosilicate tube with titanium? [Hawaii] (October 5)

2e. GALVANIZING, ALUMINIZING, HOT TIN DIPPING

53673. Floating dross after a holiday [Turkey] (November 20)
53529. Rinsing / "Spent" HCl [South Dakota] (November 20)
53170. The defect of galvanizing irregularities and how to control and remove it [Egypt] (November 17)
53540. Flat rolled galvanized steel slit edge integrity [Idaho] (November 6)
53502. Quenching Bath Installations [Egypt] (November 4)
53491. Non-electric galvanizing kettle - Hydrogen fuel viable? [South Africa] (November 2)
53421. White rust on galvanized bird mesh [India] (October 26)
53422. Interference after hot-dip galvanizing nuts and bolts [Mexico] (October 23)
53386. Zinc oxide packaging and disposal [India] (October 19)
53369. White rust on galvanised sheet and its effect on paint [India] (October 19)
53329. Black spots/Lack of adherence of Zinc in HDG of heat treated bolts [Indiana] (October 15)
53300. Hot dipping galvanization of bolts and nuts after electroplated [Qatar] (October 13)
52972. Problem with raised lines on galvanized 16 ga fenders [Missouri] (October 12)
53084. Edge coating of galvanized strip [Maine] (October 2)
52971. Galvanisation measuring/specifying [Qatar] (October 2)
53193. Req. a minimal coating (50-60 micron) for zinc savings [India] (October 2)

2f. BLACK OXIDE, BLUING, COLORING, PATINATING

53661. Black oxide finish is oily to the touch [Connecticut] (November 20)
53466. Low(er) temperature black oxide for 300 series SS [Colorado] (November 12)
53302. Need information on good temperature for paint coating or lacquer after black copper oxide [Indonesia] (October 12)
51275. 2 years finishing aircraft cable, and consistency still eludes us! (October 9)
53185. Conductivity of Black Oxide [California] (October 9)

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

52894. Passivation problems in mechanical plating [India] (August 25)
52675. Process Comparison for Tufftriding and Nitriding [India] (July 24)

3. ORGANIC FINISHING PROCESSES . . .

3a. ELECTROPAINT PRIMING, AUTOPHORETIC COATINGS

53649. Crater Issues on CED Coating [India] (November 18)
53637. Sparks on bulk of metallic pieces during CED [Canada] (November 17)
53500. Bubbling / swelling in ED coating [India] (November 2)
53497. MEQ test for CED bath [Pakistan] (November 2)
53250. High pH of CED bath and low pH of UF permeate and rinses [Pakistan] (October 13)

3b. POWDER COATING

53654. Powder Coating additive to prevent rust of sintered parts [India] (November 18)
53641. Can Powder Coating Weaken Aluminum? [Arizona] (November 18)
53603. Blue Powder Coat Peels, other colors don't [Canada] (November 17)
53580. Yellowish stain on metal cabinets after powder coating [Philippines] (November 16)
53347. Aluminium profiles painting, paint curing problem [Israel] (November 12)
53587. Kynar vs Powder Coat Finish [North Carolina] (November 10)
53544. Test to determine corrosion rate of powder coated steel [Wisconsin] (November 6)
53535. "Second" / Top coat peeling - Powder over Powder [Ohio] (November 6)
53452. Oven-free Powder Coating Systems [Mexico] (November 4)
53435. Standard for evaluating dust contamination in powder coating [The Netherlands] (October 29)
53420. Powder Coating vs. P-Alkalinity [Illinois] (October 26)
53356. Typical Thickness of Powder Coating on Sheet Metal [Massachusetts] (October 21)
53253. Powder Coating Process reduces Ultimate Tensile Strength [India] (October 9)
53238. Globally accepted salt spray time and conversion in years for the same. [India] (October 7)
53222. What are the probable causes and remedies of water marks in powder coating process [India] (October 7)

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

52813. E coat is suffering "streaking" appearance [England] (October 21)

3d. PAINTING, ADHESIVES AND OTHER ORGANIC COATINGS

53675. How to handle fabricating in one shop, shipping, and then powder coating in another shop [New York] (November 20)
53552. Need Book and/or license for NC Thinner Manufacturing [India] (November 6)
53524. Peeling of kynar from galvalume [Florida] (November 4)
53507. Looking for an alternate for Prebond 700 for surface treatment of steel [California] (November 4)
53498. Plastisol textile coating doesn't hold up to acid/enzyme wash [India] (November 2)
53495. White powdery deposit on welded areas of painted fuel tanks [Australia] (November 2)
53246. Treating aluminium for wet spray painting [South Africa] (October 30)
53451. Golf club paint fill [Canada] (October 26)
53434. External side stripe in food can manufacture turns white [UK] (October 26)
53402. Paint Dipping, how to keep paint off of identity tags [Canada] (October 23)
53419. Primer application into a "taco" type structure [Florida] (October 23)
53404. Recommended paint method for A360, A380 die castings to pass 168 hr Acid Salt Spray test [Washington] (October 22)
53403. Repainting Black Anodizing [Oklahoma] (October 22)
53293. Aluminum preparation for wet spraying [South Africa] (October 12)
53279. BAC5845 Paint Wet Adhesion Failures to BSS7225 Type II, Class I [California] (October 12)
53198. Etching 316 stainless as preperation for good bond to epoxy [California] (October 9)
53019. Need to paint a Cor-Ten clock tower [Maryland] (October 6)

4. POST-TREATMENTS

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

53485. How to get gold color with brass when done acid wash [India] (November 16)
53572. How to remove antiquing spots on brass electroplating [India] (November 10)
53512. Use black Jax on rhodium plate etched pattern [Canada] (November 10)

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

53657. Electroplating coating causing the potential for hydrogen embrittlment? [Missouri] (November 19)
53243. Solderability of Electroless Ni and Electrolytic Ni [Malaysia] (November 5)
53450. Zinc plating causing cracks in a hardened sheetmetal part [India] (October 29)
53355. Explain the process of hydrogen deembrittlement treatment [India] (October 16)

4c. STRIPPING, REWORKS, ETC.

53642. Chromium stripping voltage [Arizona] (November 17)
53602. Stripping Hafnium Silicondioxide from aluminum [Texas] (November 12)
53566. Stripping Electroless Nickel from Monel [Ohio] (November 9)
53499. ED coating - how to strip [India] (November 3)
53346. Brass Battery Caps with Black Chrome Finish; Stripped with Yellow Contamination [Massachusetts] (October 16)
52620. Stripping of pvd plated gold [India] (October 15)
53214. Removing Black Oxide Finish [Virginia] (October 9)
53271. Method to strip Titanium deposits from Aluminum substrate [Texas] (October 8)

5. SUPPORTING ISSUES

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

53678. What lab analysis will help fix our aluminum substrate problems? [Mexico] (November 20)
53592. Testing that HCl activating solution is not exhausted [Canada] (November 12)
53575. Corrosion problems on externally tested Alocrom test pieces [Great Britain] (November 10)
53568. Water Break Test vs Dyne Test - Stainless Steel and adhesion to PUR [Denmark] (November 9)
53563. Detecting aluminum 4043 versus 4046 or 4047 [Washington] (November 9)
53448. Test method for zinc ash content [Pakistan] (November 9)
53528. Chemical residual analysis after pipeline passivation [Canada] (November 6)
53418. Method for analysis Gold(III) using visible spectrophotometer [Indonesia] (November 4)
52905. Verifying the Validity of Sodium Dichromate Test for Passivation [Pennsylvania] (November 3)
53401. Atotech bondfilm bath determination of chlorides [New York] (November 3)
53449. Hydrozine analysis methods for boiler water [Australia] (October 26)
53345. Titration of Multi-Etch for Fluoride [Washington] (October 16)
53291. Handy instrument for hard chrome plating hardness [India] (October 13)
53273. Dry Adhesion Tape Test without cutting into the painted surface. [California] (October 12)
53252. Titration Test for Dow 1 pickle -- help needed [Arizona] (October 7)
53197. Spiral Contractometer Test [Mexico] (October 6)
53071. 500 hrs of GUV accelerated test is equivalent to how many years of exposure to sunlight? [India] (October 2)

5b. WASTE & WASTEWATER TREATMENT, POLLUTION CONTROL

53647. Platinum and palladium recovery from e-waste [South Africa] (November 19)
53511. Separation of Gold metal from Potassium Gold Cyanide salt [Mexico] (November 16)
53487. Demin water supply through the stainless steel pipe [Malaysia] (November 4)
52661. Recuperation of precious metal by electrolyse (gold and palladium) [France] (October 30)
53463. Varying feed (waste) nature and COD of final clear water [Bahrain] (October 27)
53447. Removing ammonia from household wastewater [Saudi Arabia] (October 26)
53417. Reusing drain water from DI Plant [India] (October 23)
53315. Sodium metabisulphite reaction with water [India] (October 13)
53221. Conductivity in DI water [India] (October 12)
53220. EFFECT OF SPENT SULPHURIC ACID USAGE FOR SAC REGENERATION IN A DM PLANT [India] (October 6)
53116. Amenable Cyanide, Total Chlorinated Cyanide analysis problem [Texas] (October 1)

5c. SAFETY ISSUES, EMISSIONS, TOXICITY

53677. Toxicity of nickel plating food container/product [Taiwan] (November 20)
53607. Canadian/US regulations on Chrome plated parts [China] (November 17)
53556. Safety Issues with Inhaling Dust from Laser Engraving Anodized Aluminum Parts [Connecticut] (November 6)
53269. Closing a finishing facility - legal questions [California] (October 21)
53364. Food safety of phosphate coating for cutlery application [India] (October 20)

5d. PLANT & PROCESS ENGINEERING, CONSTRUCTION

53632. Strap heaters for tanks? [New York] (November 19)
53606. What chain oil works for conveyor in phosphating system? [New Zealand] (November 12)
53270. Plastic coating on stainless steel carrier fingers in plating machine [Malaysia] (November 11)
53506. "Best" PVC Glue for Chrome Plating Machine [Canada] (November 9)
53557. Zinc fumes [India] (November 6)
53494. Handling sulfuric acid [Illinois] (November 2)
53446. Mineral sludge dryers and capacity [New York] (October 26)
53385. Disposal or containment of pickle liquor before the flood [Washington] (October 20)

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

53444. Zinc Phosphate Spec WSS-M3P36-A1 [California] (November 20)
53562. Finishing book that shows various finishes [Israel] (November 9)
53510. How does 950 silver jewelry need to be marked per jewelry standards regulations? [Puerto Rico] (November 5)
53445. Heat Resistance Test per MIL-G-45204D, paragraph 4.6.4 [California] (October 30)
53416. Required Training [Alabama] (October 23)
53360. Electroplating thickness for mild steel sheets [Malaysia] (October 19)
53344. MIL-SPEC UPDATES [UK] (October 16)
53331. Need a Steel Wool Test for wear resistance on PVD finishes [South Dakota] (October 15)
53322. What is the meaning in the electrolytic coating spec "Fe/Zn8/F1" Pc:black passivation Cr+3 [Turkey] (October 14)
53303. What is ASTM [India] (October 12)
53055. Sampling passivation parts - ansi Z 1.4 vs. mil std 105 [Israel] (October 7)
52535. Mil-C-5541 class 2 is on the parts list. Heard of it? [Texas] (October 6)
53210. ASTM B117 Revisions [Colorado] (October 6)
53209. G60 Spec. [Louisiana] (October 2)

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

53655. What is "Italian silver" [Philippines] (November 19)
53626. Looking For AESF "Shop Guide" [Pennsylvania] (November 16)
53564. Almite photo printing Surface treatment process [India] (November 9)
53478. Plate with chemical attack for unknown product [Brazil] (October 30)
53343. What does "20% by volume hydrochloric acid" mean? [Oregon] (October 21)
53292. Surface Preparation CC-T1 [Canada] (October 13)
53244. Error fish [Vietnam] (October 6)

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

53462. Is Color a Distinction between Trivalent and Hexavalent? [Canada] (October 27)
53169. CPSIA Approved Rust Resistant Coating [California] (September 28)
53113. RoHS Protective Conductive Coating for steel [California] (September 17)

5h. MOSTLY METALLURGY

53635. Failure Analysis of cracked crimper roller [India] (November 19)
53591. H900 vs H950 difference in Results [Utah] (November 12)
53392. Help with chromoly 4130 in manufacturing [Mexico] (November 3)
53015. Pot annealed copper discoloration [Philippines] (October 22)
53400. Bright annealing of stainless steels [Israel] (October 22)

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