PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 

Advertisement

PaintSquare


Problem Solving Forum

| More

February 17 - February 21, 2014

What’s the best way to determine if a cementitious-based mortar used to repair exterior concrete is ready to be coated?

More items for Quality Control


Selected Answers

From William Slama of International Paint/Ceilcote Products on February 17, 2014:
Dhinesh has most of the answer right. However, several high- strength, fast hydrating cementitious repair mortars are being used that allow much faster recoating. Some can be recoated with epoxy systems in 24 hours and vinyl ester overcoats in as little as 48 hours. Note that a secondary surface prep is required. That could be either abrasive blasting or 5,000 psi water blast with pulsating nozzle to remove any possible laitance or weak surface residue. Then, prior to overcoating, the plastic sheet test (ASTM D4263) should be run to verify dryness.

From dhinesh narayan of Auckland Abrasive Blasting & Coatings (2005) Ltd on February 16, 2014:
For larger repair areas, use the plastic method to assess moisture content, or, if possible, allow at least 14 days curing and then sweep blast the repaired area.

Please sign in to submit your answer this question    

Tagged categories: Concrete coatings and treatments; Concrete repair; Spot repair


Current PSF Question | Submit a PSF Question | Full PSF Archive

Advertisements
 
Fischer Technology Inc.
 
Maximize Profits by Monitoring Coating Thickness
 
Learn more by contacting Fischer Technology today: 1.860.683.0781
 

 
KTA-Tator, Inc. - Corporate Office
 
KTA-TATOR LABORATORY SERVICES
 
• Coating failure analysis
• Independent testing
• Accelerated weathering testing
• Abrasives Testing
• Oil & Gas Material Qualification
• A2LA Certificate #2455.01
Contact: Rob Leggat
at 412-788-1300 x176
 

 
HoldTight Solutions Inc.
 
Full Surface Protection for Up to One Year
 
HT 365 is a preservation, single component, anti-corrosive coating, a water displacing agent, a lubricant, and a penetrating fluid. It creates an imperceptible thin-film coating that offers excellent salt contaminant and humidity protection. Contact your HoldTight® representative or visit Holdtight.com for more information.
 

 
DeFelsko Corporation
 
PosiTector SHD Shore Hardness Durometer
 
PosiTector SHD measures the hardness of non-metallic materials. Features a measurement timer, auto ignore mode and internal memory. Shore A or D available.
 

 
Blastox/The TDJ Group, Inc.
 
Blastox® - One Step Lead Abatement
 
Sandblast additive delivered to jobsite pre-blended to eliminate hazardous abrasive wastes. Why mix, meter or apply at the job-site? Blast with ease and
Let your painters paint!
1(800)-252-7869
 

 
SABRE Autonomous Solutions
 
Safety
 
Removing blasting operators from harmful environments is our key objective.
 

 
ARC / A.W. Chesterton Company
 
Erosion Resistant Coating
 
It’s high gloss low drag, abrasion resistant surface extends equipment life, improves material flow, enhances equipment efficiency, and reduces downtime.
 

 
SAFE Systems, Inc.
 
Enduroguard -
The Tough Cable
for a Tough Industry.
 
Reduce maintenance costs and down time, increase job site safety with Enduroguard Cable. Available exclusively from SAFE Systems. UL listed, flexible, abrasion resistant and cut resistant.
 

 
Sky Climber, LLC
 
Solutions in Suspended Access
 
Safely reach workspaces regardless of size or purpose with our full line of Hoists, modular Platforms, and versatile Workcages.
 

 
 
 

Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings 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 (Updated 5/24/2018)   |   Terms & Conditions   |   Support   |   Site Map   |   Search   |   Contact Us