×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

High Performance Coating

High Performance Coating

High Performance Coating

(OP)
My project requires the contractor to apply a high performance coating to a canopy located at a cruise terminal. The specification states the steel which is hot-dipped galvanized shall be prepared in accordance to SSPC-SP2 (Hand Tool Cleaning)before the application of the primer. On the other hand, the supplier's preferred method of surface preparation is Abrasive Blast Cleaning which the contractor considers is a change order and will extend our project beyond what we would like. My question is Hand Tool Cleaning sufficient, with an inspector from a testing inspecting present during the coating process?

RE: High Performance Coating

Abrasive blast may likely abrade the galvanizing, removing some or all of the corrosion protection afforded by the zinc.

RE: High Performance Coating

Light (sweep) blasting is the preferred method.

RE: High Performance Coating

(OP)
Would hand tool cleaning be sufficient?

RE: High Performance Coating

Does "supplier" = primer manufacturer ?

I'd call the primer mfr's tech support, and not deviate from their recommendation.
I expect they publish detailed documents answering your exact question.

Are there finish coat surface quality expectations/requirements for the canopy?

RE: High Performance Coating

High-performance coatings protect steel and other metals by creating a highly durable barrier between the metal and its service environment.
A high-performance coating on the other hand, can add a level of durability from light scuffing that is quick and easy to clean while simultaneously adding a pop of color to the surface.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

White Paper - Considerations for choosing a 3D printing technology
The adoption of 3D printing into major companies’ product development life cycles is a testament to the technology’s incredible benefits to consumers, designers, engineers and manufacturers. While traditional production methods have limitations in manufacturability, 3D printing provides unparalleled design freedom due to the additive method of building parts layer by layer. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close