Treating Rust

Steel window maintenance and repair methods.
johnleeke
Posts: 384
Joined: April 13th, 2011, 7:34 pm
Full Name: John Leeke
Location: Portland
Organization: Historic HomeWorks
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Location: Portland, Maine
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Treating Rust

Postby johnleeke » January 3rd, 2012, 5:49 pm

WPSC Window Standard Form

Number:
Update: 7/12/11
Author: James A. Turner
Contributors:
References: Preservation Brief #13: Steel Windows, Photos by James Turner

Title of Treatment: Determining Degree of Rust
Class of Treatment: [ ] Maintain, [ ] Stabilize, [X] Repair, [ ] Upgrade, [ ] Exception
Type of Treatment: [ ] Traditional, [ ] Modern

Condition to be Treated: Rust build up and methods of removal.
Description: Take note that the degree of rust on steel surface will determine the time and method of removal.





Typical Procedure <a word or short phrase for each step>:
1. Light rust can be removed by hand with a wire brush, scraper, or aluminum sandpaper.
2. Medium rust can be removed with 4 ½” wire wheel grinder, chemical compounds and medium powered compressed air system.
3. Heavy rust should be removed through a baking process in which the unit is removed from the structure and placed in an oven at 900 degrees.
4. In all cases bare metal should be cleaned with a solvent such as denatured alcohol, dried and primed with an anticorrosive primer.

Materials:
· Carbide blade scraper, 4 1/2” wire wheel grinder, wire brush.
· Power stripper: compressor sand or powder blaster.
· Cleaning solvent, anti corrosive primer, and paint.

Quality of Results:

Best Work: Clean bright steel surface (all rust removed) ready for primer

Adequate Work: Most rust and paint removed, surface sanded spot priming where necessary.

Inadequate Work: Heavy paint and rust remain on frame, repairs not clean.
Attachments
WPSC Window Standard Form - Steel rust treatment.docx
Word file that shows the photos.
(1.75 MiB) Downloaded 265 times
John
Standards Co-Founder
Standards Councilor
Standards Book Editor

http://www.HistoricHomeWorks.com

johnleeke
Posts: 384
Joined: April 13th, 2011, 7:34 pm
Full Name: John Leeke
Location: Portland
Organization: Historic HomeWorks
Permissions: Yes
Location: Portland, Maine
Contact:

Re: Treating Rust

Postby johnleeke » January 3rd, 2012, 6:05 pm

Jim, could you post a message here and attach three photos that show the three degrees of rust: Light, Medium and Heavy.

It looks like there are three different methods for the different degrees of rust. Could you please submit a separate standard form for each one, so that more details and specific materials can be listed for each one?

Thanks!
John
Standards Co-Founder
Standards Councilor
Standards Book Editor

http://www.HistoricHomeWorks.com


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