PaintSquare.com
      | Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise
  

 

A780 Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

All Standards | ASTM Standards
Search Standards
Click to Purchase and Download this Standard or Test Method
Revision Date: June 08, 2009
Updated On: June 09, 2009
Editorial Change:
 
1.1 This practice describes methods that may be used to repair damaged hot-dip galvanized coatings on hardware, structural shapes, and other products fabricated prior to hot-dip galvanizing, and uncoated areas remaining after initial hot-dip galvanizing. The damage may be the result of welding or cutting (flame), in which case the coating will be damaged predominantly by burning. This practice can also be used to repair hot-dip galvanized coatings damaged by excessively rough handling during shipping or erection. Requirements concerning the renovation of uncoated areas remaining after initial hot-dip galvanizing are contained within the applicable material specification.

1.2 This practice describes the use of low melting point zinc alloy repair rods or powders made specifically for this purpose, the use of paints containing zinc dust, and the use of sprayed zinc (metallizing).

1.3 The extent of repair shall be limited to an area mutually agreeable to the contracting parties. Similarly, contracting parties shall agree to the repair method to be used.

1.4 This specification is applicable to orders in either inch-pound units (as A 780) or in SI units (as A 780M). Inch-pound units and SI units are not necessarily exact equivalents. Within the text of this specification and where appropriate, SI units are shown in brackets. Each system shall be used independently of the other without combining values in any way.

1.5 This standard does not purport to address the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

(Back to all Standards)
 
   

Park Derochie Coatings Ltd.
www.ParkDerochie.com
Coatings          Fireproofing
Sandblasting     Scaffolding
Metalizing           Insulation
• Shop & Field Services
• SSPC Certified
• NACE Inspectors on staff
• New Construction &
  Maintenance Programs

Sika-Us
Sika® Industrial Floor Coatings
Click to learn about floor and wall systems relied upon for performance, durability, easy maintenance and aesthetics across the every industry and environment.

Tarps manufacturing, Inc.
QUALITY MADE IN AMERICA —Available near you!
CLICK to get a behind-the-scenes look at how Tarps Manufacturing makes the highest-quality tarps right here in the USA — available nationwide.

SAFE Systems, Inc.
SAFE Systems'
Blast Lights &
Deadman Switches
Halogen or LED blast lights available with our NEW urethane bumper. Switches available in many colors for color coding your hoses.

Novatek Corporation
Novatek Corporation, Dustless Coatings Removal
Strip, clean and profile all dust free! Comply with new lead standards. Contact today: (866) 563-7800

Nationwide Overspray
Profession Overspray Removal Services
The Finest Name in Safe Overspray Removal. We specialize in removing all contaminants from any surface. Family Owned and Operated for 33 years! Fully insured. Satisfaction is guaranteed.

Covestro Deutschland
What keeps contractors one layer ahead when finishing their projects?
The answer: Pasquick®. Thanks to Pasquick®, one layer of coating is saved – resulting in faster workflows and earlier project finishing. Learn more.

Corrosion Probe, Inc.
From Detection to Correction
Corrosion Probe, Inc. has the Most Concrete Coatings Experience and Expertise. Contact us today at
860-767-4402, www.cpiengineering.com

Fischer Technology Inc.
MP0R with rotating display screen
Automatic rotating display screen just like your smart phone. Click for Video
 Call 800-243-8417

Advanced Recycling Systems
ADVANCED RECYCLING SYSTEMS (ARS)
Recycling Machines, Dust Collectors, Rapid Deployment units are time-tested and approved for the rugged industrial environment. Contact ARS today!
(330)536-8210

 
 
 
Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker
 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us
 

© Copyright 2000-2016, Technology Publishing / PaintSquare, All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail webmaster@paintsquare.com