Soft Spots (sometimes incorrectly referred to as "Spot Etching"

• THE SOFT SPOT E-MAIL UPDATE SERIES

• The "State of the Art" on Spot Etching Studies:
  • oB-00003 - Case History - Acton CA
  • oB-00004 - Case History - Phoenix AZ
  • oB-00005D - Case History - Tracy CA
  • oB-00005E - Case History - Tracy CA
  • oB-00005M - Case History - Tracy CA
  • oB-00015 - Case History - Phoenix AZ
  • oB-00017 - Case History - Brentwood CA
  • oB-00018 - Case History - NPC #10
  • oB-00019 - Case History - Scottsdale AZ
  • The Erlin/Himes Report
• Spot Etching Mythology
  • The Chapman Study
  • The Dow Whitney Study
    • Documentation on the similarities between the Dow Whitney Report and the Chapman Study
    • The letter we sent Dow Whitney asking for explanations...
  • The Arizona Test Pool
  • The "ITZ" Theory (Inter-transisitional zones)
  • The Dongell Studies
  • Randy Duke's "Your Worst Nightmare"
  • Don Hafer's studies
    • The first one
    • The second one
    • The Plasterer's Conference presentation
    • Our critique of the presentation
    • His response
• Additional reading from the cement/concrete industry
• Portland Cement Association's report on Surface Discoloration