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!

*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

High Performance Coating

High Performance Coating

High Performance Coating

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

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


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