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Current Topics:
0. CORROSION, COMPATIBILITY, CHOOSING A FINISH . . .
35528. Mixing cadmium with black zinc connectors open Q. (June 13)
31020. Galling problems 
(June 12)
19766. Galvanic Action between Galvanized and Stainless Steel? open Q. (June 8)
00376. Mechanical polishing vs. electropolishing of stainless steel (June 6)
37526. Want gold colored finishes without use of gold (May 31)
27167. Fasteners to repair aluminum boat open Q. (May 28)
43730. Electrolysis between stainless steel and steel (May 23)
57029. Recommended corrosion protection finish for 4340 steel open Q. (May 23)
60764. What Shiny Coating to Use for 3-D Printed Aluminum Casting? open Q. (May 21)
06474. Chrome vs. Electroless Nickel Plating for CPVC Extrusion Die (May 14)
23685. Rose gold plated and lacquered zipper sliders are tarnishing open Q. (May 11)
60744. Removing rust and restoring yellow chromate color (April 27)
47731. Rust on 304SS in Water Treatment Plant (April 19)
28470. Treatment for Concrete Release on Steel Forms open Q. (April 18)
02310. Conductive Coatings for Brass and Copper (April 10)
03354. How to avoid corrosion in SS316 material in presence of chlorine gas (April 3)
03606. Corrosion resistant coating for 1018 Steel motorcycle parts (April 3)
25010. Galvanized boat lift corrosion (April 2)
1. PREPARATION . . .
1a. MECHANICAL PREP
[GRINDING, POLISHING, VIBRATORY FINISHING, BUFFING, HONING]
12526. What sandblasting standard should be used for interior of petroleum storage tank? open Q. (June 3)
03599. Brass sheets surface defects after polishing open Q. (May 20)
44314. Polishing of Fountain pen nibs open Q. (May 3)
28824. Grinding HVOF coatings (May 1)
44536. Fire safety of Shot-blasting machines (April 13)
26572. Tumble polishing stainless steel (April 10)
06434. Need Random Surface Finish on Stainless Steel (April 5)
1b. PRETREATMENTS
[PICKLING, PASSIVATION, PHOSPHATIZING, CLEANING, ELECTROPOLISHING, ACTIVATION]
60775. Cleaning Aluminized tubes to ISO 16232 (June 18)
39277. Countercurrent pickling process (June 13)
53891. Electropolishing stainless steel pipe (June 10)
47017. Chemical to clean weld marks from stainless steel open Q. (June 9) Q.
19203. Prevent stainless pots from rusting in weld area (June 4)
07112. Electrodeburring type 304 Stainless Steel open Q. (June 3)
60761. Bronze infiltrated 420 SS printed item needs de-rusting/de-scaling (May 25)
05089. Removal of Heat Treat Scale from Stainless Steel open Q. (May 23)
60757. Sharpen multiple stainless tips sitting on a plate (May 23)
18495. Electropolished stainless steel cable corrodes after long storage (May 14)
50566. Titanium chemistry in HF and HNO3 chemical milling (May 10)
58242. Pretreatment for powder coating (May 7)
45662. 3-in-1 vs 7-step pretreatment (May 6)
01655. Chemical polishing of stainless steel (April 10)
13862. What Limit to Use for Iron Content in HCl Pickling (April 9)
34052. Manganese phosphating coating failure on rub test what is the reason? open Q. (April 7)
20075. Can phosphatized iron casting last several years? (April 5)
46618. Is Citric acid for SST passivation 40CFR433? (April 4)
1c. MASKING, RACKING, TAPING, PLUGGING, PHOTOSENSITIVE MASKS
58316. Liquid masking for anodizing (February 21)
2. INORGANIC FINISHING PROCESSES . . .
2a. ANODIZING AND LIGHT METAL TREATMENTS (Aluminum, Magnesium, Titanium)
06326. Post anodize operations for glossy finish (June 13)
21510. Bright dipping aluminum on titanium rack seems to galvanically electropolish it open Q. (June 13) 
44433. "Close Looping" an Aluminum De-Ox System (June 6)
57550. Anodize is peeling during tape test open Q. (June 1)
44947. Calculate/measure current density in anodizing? open Q. (May 30)
45728. Alodine 1200S Problems (May 30)
18494. Black anodizing problem: some parts purple but thickness verified (May 28)
34413. Anodizing anode to cathode ratio open Q. (May 23)
33933. Conversion coating removal harmful to anodized parts? open Q. (May 22)
06559. Alodine 600 is getting contaminated with sulfate (May 6)
01574. Aluminum anodizing: Constant current vs. controlling the voltage (May 3)
26660. Anodizing Automotive Brightwork Q&A's (May 3)
32622. Want our cadmium plated yellow chromated machine screws black chromated (May 2)
26113. Effect on surface finish of flash anodize open Q. (April 27)
52350. We believe we are successfully hardcoating at 65-70 ASF open Q. (April 26)
43451. Color variations in Chem film MIL-DTL-5541 (April 25)
36066. Aluminum Composite Panel Q&A's (April 23)
09494. Electroless nickel and hard anodizing on same part open Q. (April 20)
06930. Milky grey aluminum etch bath - can it be fixed? (April 18)
41023. Cloudy finish on Chemical bright anodized profiles open Q. (April 15)
45421. Black spots in anodized aluminum (April 10)
01217. Dyeing after dichromate seal (April 9)
60727. Chromate Conversion Coating Post Packaging (April 9)
22139. Satin Anodized Aluminum (April 7)
03651. Chromic Acid Anodize with Stainless Racks? (April 6)
01081. Why does Alloy 2024 Burn in Hard Anodizing? open Q. (April 4)
28128. MIL-A-8625 Type II, chromate sealed parts have white patches open Q. (April 4)
2b. ELECTROPLATING and ELECTROFORMING
05974. Chrome spotting on leaded brass open Q. (June 13)
26622. White rust on zinc plated parts (June 13)
60774. Low temperature limit for zinc plated parts (June 13)
16734. Chloride contamination of acid tin plating bath (June 12)
60765. Plating on silicon steel fails salt spray test quickly (June 11)
29347. Chrome plating shock absorber shafts Q&As, Problems & Solutions (June 11)
28003. Copper & silver plating blisters only on bus bar tabs open Q. (June 1)
47424. Bubbles in lacquer on plated Zinc Die Castings open Q. (May 31)
32077. Black spots in zinc plating (May 28)
01871. Hard chrome cylinder pistons rusted & pitted in a few weeks (May 26)
56318. Wood's Nickel Strike ASF open Q. (May 23)
36223. Reactivating nickel plating open Q. (May 23)
20186. Improve Hard Chrome Plating Corrosion Resistance open Q. (May 22)
04996. Root cause for Hard Chromium plating defects open Q. (May 21)
28863. Problems in cyanide copper plating (May 21)
09676. Problems with tin plating over brass (May 18)
40492. Satin nickel plating peels off open Q. (May 18)
01006. Non cyanide copper plating Q&As / Problems & Solutions (May 12)
48074. Hard chrome plating problems: blackness in LCD (May 9)
30879. Plating thickness variation in hard chrome plating open Q. (May 9)
04925. Unable to get proper thickness levels in bright chrome plating (May 9)
07274. Anode Calculation for Chrome Plating Process open Q. (May 1)
40095. Zinc Plating of Wire open Q. (April 27)
02456. Opening a mini nickel plating industry (April 27)
31034. Can we improve our tin plating Salt Spray results? open Q. (April 26)
31850. Plating S.S. without a Wood's Nickel Strike open Q. (April 24)
00476. Alkaline non-cyanide zinc plating vs. acid zinc (April 19)
00706. Starting Nickel/Chrome plating. Is it worth it? (April 19)
28746. Trivalent Cr vs. Hexavalent Cr, difference please (April 19)
22644. Upper limit on plating speed with extreme agitation open Q. (April 18)
41906. Dummying Nickel Contamination from Copper Cyanide Bath (April 17)
25024. Electrodeposition of Titanium (April 15)
44771. Acid Copper Plating Problems (April 15)
29188. Plating of Internal Threads (April 11)
46258. Is clear zinc chromate discoloration permissible? (April 10)
60693. Microcrack density control in hard chrome plating open Q. (April 10)
50922. Platinized titanium anodes for hard chrome plating? (April 9)
22092. Black Ruthenium or Alternatives for Jewelry Plating open Q. (April 9)
53532. Rack marks on alkaline zinc bath / Pre-cleaning hot rolled steel open Q. (April 4)
00907. Zinc plating porous sintered metal parts (April 4)
01114. What voltage for white bronze plating? (April 4)
04846. Acid zinc plating of zinc diecastings open Q. (April 3)
2c. ELECTROLESS PLATING, PLATING ON PLASTICS, IMMERSION PLATING
05519. Chrome plating of ABS plastic problem: warpage open Q. (May 9)
18471. Gold plating directly on ABS or PU foam? open Q. (May 7)
39230. Heat treating electroless nickel plating on aluminum open Q. (April 28)
16897. Problems doing Electroless nickel plating on stainless steel (April 17)
20973. Problems & Solutions in ENIG (Electroless nickel / immersion gold) (April 2)
2d. PVD, CVD, ION IMPLANTATION, VACUUM PROCESSES
16927. Coloring stainless steel -- electrolytic vs. PVD (June 13)
60771. High Temperature PVD Coatings open Q. (June 4)
07846. PVD coatings: color control problem with TiNopen Q. (June 3)
28527. Base coats and top coats for vacuum metallizing open Q. (June 1)
49660. Brass plating on stainless steel? (May 22)
06125. Bright PVD Gold Is Okay; Matte Gold Won't Adhere open Q. (May 21)
34053. Titanium nitride doesn't adhere to glass (April 10)
2e. GALVANIZING, ALUMINIZING, HOT TIN DIPPING
56573. Galvanizing Pot Temperature -- Ideal zinc temperature for galvanizing? open Q. (June 13)
54709. Trivalent vs. silane galvanizing quenches (June 13)
22164. Fire rating of Zintec vs. HDG doors open Q. (June 12)
38915. Peeling problem in galvanizing of steel open Q. (May 31)
44978. Galvanizing kettle furnace and burner design (May 30)
24862. Zinc-phosphate pretreatment of galvanized steel (May 14)
60749. Galvalume Coils Have Non-adherent Bleeding Chromate Stains open Q. (May 10)
25997. Prevention of white rust on galvanizing (May 5)
34714. Controlling hot dip galvanized steel production for dullness or shine (May 5)
41209. Flux filtering machine? (May 5)
54149. How Can I Reduce and Remove Zinc Dross (May 4)
45651. How to stop hot dip galvanizing flaking open Q. (May 2)
29835. Galvanizing 101: pre-galv vs. hot-dipped galvanized 
open Q. (April 15)
42394. Furnace dew point for NOF galvanizing line open Q. (April 5)
2f. BLACK OXIDE, BLUING, COLORING, PATINATING, NITRIDING
28779. Is zinc phosphate an alternative to QPQ (May 28)
07605. Replace powder coating with black oxide (May 7)
01754. Blackening stainless steel in the field open Q. (May 2)
03278. Thickness of black oxide coatings open Q. (April 23)
60737. Stellite-6 Gets White Patches when Nitriding open Q. (April 19)
47183. Manganese phosphating on gun barrels is too light and thin (April 6)
2g. OTHER INORGANIC FINISHING: Mechanical Plating, QPQ, Metal Spray, Zinc-rich Dip-Spin Coatings, etc.
60730. Are bullets (projectiles) ever mechanically plated? open Q. (April 10)
3. ORGANIC FINISHING PROCESSES . . .
3a. ELECTROPAINT PRIMING, AUTOPHORETIC COATINGS
11694. Can e-coat be used on optics or does it outgas open Q. (June 13)
51966. Electrodeposition/e-coating (CED) issues & problems open Q. (May 4)
23047. How to reduce paint thickness in Cathodic Electro Deposition (CED) system? open Q. (April 25)
32574. Small dots like popping in body c zone open Q. (April 11)
3b. POWDER COATING
18298. Problems in powder coating (June 3)
04729. Powder coating chips off aluminum during pemming operation open Q. (May 14)
37147. Powder coating reclaim -- does anybody take recycled waste powder? open Q. (May 10)
44458. Powder coating in golden yellow open Q. (May 7)
36338. Yellow powder coating turning orange (May 5)
55323. Cissing problem in powder coating open Q. (April 30)
45155. Powdercoating stainless steel Q&A's (April 25)
43619. Fisheyes when Powdercoating Aluminum but not Steel (April 20)
3c. LACQUERS, CLEAR COATS, ELECTROPHORETIC TINTING, ANTI-TARNISH
09194. Clear E-coating turns my gold too orange (June 15)
37471. Can't find electrophoretic lacquering services (April 7)
3d. PAINTING, PRINTING, ADHESIVES AND OTHER ORGANIC COATINGS
46505. Sublimation Coating Formula open Q. (June 18)
10157. Is NBR rubber sprayable for use as a coating? open Q. (June 3)
30522. Clear coating to seal a rust patina finish on metal (June 1)
60768. Translucent Dye Metal Finishing? (May 28)
25811. Paint Viscosity Chart / Cross-reference (May 22)
28407. TT-L-50 (Clear Acrylic Lacquer Aerosol) Replacement open Q. (May 8)
29692. Teflon recoating of pots & pans and kitchen utensils open Q. (April 28)
10691. Painting of zinc plated parts (April 18)
16305. Prep & paint 316SST in the field open Q. (April 18)
42007. Can I paint a walk-in cooler? (April 12)
4. POST-TREATMENTS
4a. CHEMICAL POST-TREATMENTS
[CHROMATE CONVERSION COATINGS, RUST PREVENTATIVES, PATINAS]
60766. Trivalent chromate on steel (May 22)
31467. Want to manufacture Copper Bright Dip and Corrosion Inhibitor in house (May 3)
45598. Yellow chromate rubs off (April 19)
4b. BAKING AND NON-CHEMICAL POST-TREATMENTS:
[HYDROGEN EMBRITTLEMENT AND DE-EMBRITTLEMENT, ANNEALING, WHISKERS, SOLDERING, REFLOWING]
44518. Tin plating turned brown from reflow (April 8)
4c. STRIPPING, REWORKS, ETC.
57202. Chemical to strip nickel plating (March 29)
5. SUPPORTING ISSUES
5a. ANALYSIS, LAB TECHNIQUE, Q.A., SALT SPRAY TESTING
60442. How do "Stress Tabs" work? (June 8)
38230. Steel & Aluminum allowed simultaneously in same Salt Spray Test? (June 6)
50132. Salt Spray Test -- ASTM B117 Operational Problems (June 6)
47480. Analysis method for nitric acid and ammonium bifluoride for etch bath (June 6)
20398. Testing aluminum mirrors -RFQ- (June 4)
44899. Telling 304 from 316 Stainless? (June 3)
03642. How to calculate % purity of citric acid by titration method? (June 3)
40408. How to digest stainless steel completely? open Q. (May 14)
08904. Salt Spray Hours vs. real life exposure (May 11)
01185. Analysis of MSA tin sludge (May 9)
03907. Gluconate Analysis for Caustic Etch open Q. (April 26)
34601. Electroless Nickel Solution analysis open Q. (April 24)
00885. Analyze acid copper plating solution for chloride open Q. (April 19)
07192. R&R Study for Electroless Nickel Thickness (April 18)
51596. EDX: We dope, then don't find it all open Q. (April 15)
11434. Cyanide Copper plating Solution Analysis open Q. (April 9)
43467. Bath Analysis - Fluoride-Phosphate Conversion Coating open Q. (April 1)
5b. WASTE & WASTEWATER TREATMENT, POLLUTION CONTROL
07245. Reducing COD in waste water with natural mineral products open Q. (June 3)
24103. Disposal of chrome waste open Q. (May 9)
34600. High Sulfate in nickel-chrome plating plant wastewater open Q. (May 2)
32633 Tube Settler sedimentation area open Q. (April 25)
35685. Chloride level in cooling towers? open Q. (April 25)
32443. pH of DM water is a mystery (April 18)
00016. Effluent from paint manufacturing is not clear after treatment (April 17)
24871. Rinsing and disposal of Alodine solution (April 4)
5c. SAFETY ISSUES, EMISSIONS, TOXICITY, ENVIRONMENTAL IMPACTS
21703. Galvanized stove and metal fume fever (June 4)
40416. Aluminum oxide = health risks? open Q. (May 18)
40784. Is chrome plating safe for food processing tools or machines? (May 9)
15303. Is bronze flatware safe open Q. (April 24)
12778. Danger of copper sulphate (April 18)
20858. Toxicity of stainless steel flatware (April 15)
45056. Galvanized steel for planting vegetables (April 12)
5d. PLANT & PROCESS ENGINEERING, CONSTRUCTION
41928. Zinc Phosphate Sludge Buildup Problems (June 15)
60772. U-shape vs in-line zinc electroplating (June 6)
45164. Paint Booth floor open Q. (May 31)
34366. Alternative to stainless steel for parts washer construction (May 30)
00194. Calculate boiler size for heating plating tanks (May 14)
39416. Protect Concrete from Sulphuric Acid open Q. (May 8)
41610. Tinned copper motor connection wires turned green open Q. (April 26)
56947. Are Dual Rectifiers in a Single Box a Good Idea? open Q. (April 17)
60731. Materials of Construction for Nickel Acetate Seal open Q. (April 10)
17485. Tank Water Evaporation Estimates (April 10)
60725. Filter for Ag and Au Strike Baths (April 4)
5e. QUESTIONS ABOUT SOFTWARE, SPECS, BOOKS, INDUSTRY STATISTICS, ETC.
43668. Thickness tolerances for 2024 T4 aluminum (June 5)
60770. Standards for Chemical Milling open Q. (June 1)
60763. Charging customers for audits? (May 25)
60745. Ni-Cr treated DC 0.05/400 HV, etc. open Q. (May 2)
14585. Rhodium plating on silver jewelry open Q. (April 23)
5f. WORLD WIDE WORD OF THE WEEK
30536. What does "CL" mean in CL304 Cres & CL416 Cres? open Q. (May 31)
03605. What is Alusil? Who can coat it on fuel tanks? (April 23)
60702. What is flash anodizing? (April 15)
60736. Need all details for PF ZN 8C plating open Q. (April 11)
29294. What does "premium quality" stainless mean? (April 10)
5g. REACH, RoHS, EOL Directive; Cd, Pb, Cr+6, Nitric Acid & Phosphate Replacements
48221. Repairing Type I Conversion Coating with Type II open Q. (May 14)
24431. Is SPI B3 Finish RoHS & REACH Compatible? (May 5) 2nd Request
57850. Supplier says trivalent chromate but not RoHS compliant (April 9)
5h. MOSTLY METALLURGY
51470. Hardening EN8 / EN9 parts. Q&A's, Problems & Solutions open Q. (May 11)
28871. How to Harden Type 316 Stainless (May 10)
12545. Oops! Carbon steel left in furnace overnight (April 6)
6. CONSUMER, RESEARCH, & STUDENT ISSUES
6a. ARTISTS, HOBBYISTS, CAR BUFFS, HOME OWNERS, ETC.
53424. Gold plating of brass Van de Graaf screens open Q. (June 15)
00001. Is there a Preparation for chrome dipping bone ? open Q. (June 13)
10202. Jeweler says it will take 2 weeks of humidity for my ring to get shiny again open Q. (June 13)
12868. How to dull brass (June 13)
53013. How to calculate the cost of gold plating per piece (June 12)
17560. Bottle cap and similar decorative tabletops (June 6)
60773. How to Colour Stainless Bolts Bright Blue Similar to Aluminium Anodising (June 5)
18212. Cadmium plating disk brake rotors? Yes/No? (June 5)
18486. Stainless flatware in the dishwasher (June 4)
18889. Recovering gold from electronics (June 4)
43774. Pandora jewelry turned white open Q. (June 3)
12873a. Removing Silica Water Stains open Q. (June 3)
55151. Oxalic acid for stains on vinyl pool liner open Q. (June 3)
30419. Want to replate chlorinator plates with rhodium stripped from them (June 3)
09128. Copper Sulphate as Swimming Pool Algae Remedy? open Q. (June 3)
23481. Polished Aluminum Clearcoat Secret (June 1)
23568. How long will brass lacquer last? (June 1)
29778. Damaged my Harley brake pedals stripping the chrome open Q. (June 1)
34465. Pre-coating for sublimation transfers onto ceramic open Q. (May 31)
46505. Will PVA glue accept sublimation? open Q. (May 30)
47295. Copper plating onto nickel plating open Q. (May 30)
53511. Recovering gold from 'bombing' procedure open Q. (May 30)
08229. Removing stains from bath tubs. (May 28)
19866. Cleaning zinc clad tabletop? open Q. (May 28)
50226. Is stainless steel okay for cake tester? (May 25)
35772. Rust treatment with phosphoric acid (May 24)
27029. Painting metal to go on wall behind a woodstove (May 23)
49880. Aluminum horse trailer corrosion protection (May 23)
60756. Refining of platinum (May 23)
32106. Gates & grills made of pipe are rusting (May 22)
02697. Electroblackening of Steel (May 16)
37544. Removing scratches on painted kitchen stoves and refrigerator doors open Q. (May 14)
60754. Treating steel frame of house boat for anti-rust and corrosion open Q. (May 11)
21693. Clearcoat for deeply brushed aluminum open Q. (May 11)
22490. Repainting aluminum swimming pool coping (May 11)
03331. Home brew aluminum anodizing help (May 10)
34112. Suitability of galvanised metal for outdoor furniture open Q. (May 10)
07074. D-I-Y Power Supply for Aluminum Anodizing? open Q. (May 9)
03066. Hardcoat Anodizing of Auto Wheels open Q. (May 9)
00085. Problems and solutions for copper electroforming open Q. (May 9)
38904. How To Intentionally Rust Metals Such As Jingle Bells & Safety Pins (May 8)
00946. Want to do Anodizing but can't get some of the chemicals open Q. (May 8)
50693. Help with removal of melted/burnt-on Teflon open Q. (May 8)
06773. Is my gold flatware real gold plating (May 7)
16370. Dissolving gold in sulfuric acid open Q. (May 6)
44251. Removing brass paint from a gold plated chandelier (May 3)
21209. Stripping the paint off a wrought gate and repainting (May 2)
41066. Aluminum kitchen stuff no longer shiny -- How to fix it? (May 1)
41483. Sealant for hot rolled steel floor open Q. (May 1)
17571. Refinishing Bathroom Faucets / Fixtures (April 25)
30186. Stainless sink stains white towels open Q. (April 25)
07137. Dirilyte gold-tone flatware: Cleaning / Polishing open Q. (April 25)
28968. What voltage is used to copper plate (April 25)
24936. 24 kt Gold Looks Like Copper (April 25)
00284. Bronzing a resin trophy (April 24)
11146. Replacement for corrugated iron roof open Q. (April 23)
00937. Anodize titanium to gold color (April 23)
38061. CLR stained my stainless steel sink (April 18)
47714. Expensive Chrome Wheels are "pitting" (April 17)
07164. Galvanized zinc for birdbath reservoir? open Q. (April 16)
09549. What is black patina on old woodplane? open Q. (April 16)
26353. Cleaning gold that has been burned open Q. (April 15)
04913. Want to do Nickel Plating at Room Temperature (April 13)
20443. Difference between pure silver and sterling silver (April 13)
35498. Painting outdoor aluminum furniture (April 11)
30700. How to tell if silver tray is lacquered open Q. (April 9)
49464. Cleaning up cement dust from sanding of concrete floor (April 9)
60729. Plating gun barrels with precious metals (April 9)
24229. Can I make concrete stains by dissolving metals in acid? open Q. (April 6)
16032. Cleaning/restoring vintage tin humpback trunk open Q. (April 5)
00161. Clear coating brass, copper and silver jewelry (April 5)
07423. Paint not sticking to Ospho open Q. (April 5)
03338. How do I stop copper from oxidizing? (April 5)
03003. Dissolving gold deposits for analysis (April 4)
12362. Coating tables and bar tops with thick clear pourable plastic (April 3)
16257. Painting galvanized sprinkler pipes (April 3)
22867. Why would yellow gold turn silver? (April 3)
02161. How can I tarnish or dull bright brass (April 2)
22541. Ceramic Coating vs. Powder Coating vs. Ceramic-powder Coating? open Q. (April 1)
00779. Remove patina from old ship's wheel open Q. (April 1)
6b. RESEARCH, THESIS TOPICS, UNIVERSITY & POST-GRAD STUDENTS
12891. How to neutralize nitric acid open Q. (June 13)
52520. FMEA analysis for Nickel Chrome plating open Q. (May 21)
31345. Manganese phosphate chemistry (May 21)
07372. Plating Thickness vs. Current/Amperage -- What is the Relationship? (April 7)
00555. Plating copper onto aluminum open Q. (April 2)
6c. K-12 SCIENCE PROJECTS, GRAMMAR & HIGH SCHOOL STUDENT QUESTIONS
48959. How does pH affect rust open Q. (June 18)
32766. What conducts heat quicker copper or nickel? (June 15)
21478. Acid + Carbonate = what reaction? (June 3)
09644. Reaction acid+metal (May 22)
53766. Generating Methane from Manure and Turning It into Electricity (May 16)
11194. Magnesium ribbon and hydrochloric acid reaction (April 18)
33641. What is the affect of using different voltages in the electroplating process? (April 15)
7. DRIFTED OFF FINISHING, BUT INTERESTING TO SOME OF US :-)
14995. Excessive Iron in Swimming Pool Water (June 13)
18029. Problems in White phenyl Manufacturing (June 12)
19953. Cleaning stainless trowels for color plastering open Q. (June 10)
29312. Making a Silver Catalyst Bed open Q. (June 8)
13393. Preparing sea shells for crafts or display (June 5)
23922. Musty smell in basement and throughout entire house open Q. (June 3)
13277. Copper for natural gas lines? Or steel, plastic, CSST, etc. (June 3)
30479. Copper corrosion and blue water in residential water system open Q. (June 1)
60769. Etching to get roughened surface on Phillips screwdrivers (May 31)
44362. Swallowed Sodium Hypochlorite during root canal (May 30)
33143. Reassemble Stiffel Lamp open Q. (May 8)
29544. Washing machine drain line backs up open Q. (May 8)
19039. Cast Iron Cook Stoves: How to restore open Q. (May 8)
60748. N=N aromatic cleavage reaction open Q. (May 7)
60705. Self-curing cast polyurethane? open Q. (May 1)
09868. Can lightning turn copper into iridium? (April 23)
47120. Melting Aluminum Scrap: Too much aluminum oxide open Q. (April 13)
15559. Silver extraction from waste hypo/fixer solution open Q. (April 13)
60732. Repair of Steel Pool filter - 3.5" hole open Q. (April 10)
26801. Solving an electrolysis problem in home plumbing open Q. (April 10)
11438. How to Make Iron Non-magnetic (April 6)
22253. Refining of Platinum & Palladium open Q. (April 1)
legend:
| ( ) | = Date in parentheses is most recent posting on the thread |
| open Q. | = Thread currently ends with a question or the editor-curator's inconclusive musings |
| opinion! | = Comments may raise blood pressure |
| silly :-) | = For those with a sense of humor |
| = Contains embedded video |
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