PaintSquare.com


The First Word in Protective & Marine Coatings

A Product of Technology Publishing / PaintSquare
JPCL | PaintSquare News | Durability + Design | Paint BidTracker

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

Elcometer, Inc.
New Elcometer 456 Coating Thickness Gauge

Best In Class Just Got Better. Technologically Intelligent And Robust. Marvelous Design And Durability. An Earth-Shattering Revolution In Coating Inspection.


JPCL Europe
Don’t miss an issue!

JPCL EUROPE offers essential news and knowledge for protective and marine coatings professionals in Europe, the Middle East and Africa. Subscribe now: www.jpcleurope.com


Fischer Technology Inc.
MP0R with rotating display screen

View your coating thickness readings from any angle with rotating display screen. New graphic display with easy menu navigation. Click for Video
Call 800-243-8417


KTA-Tator, Inc. - Corporate Office
KTA Online
Instrument Catalog

• Any Manufacturer
• Any Instrument
• Any Time
Visit www.ktagage.com
Or call 800-582-4243


DeFelsko Corporation
PosiTector Dew Point Meter

Measures and records
environmental conditions
during surface prep and
painting. 4 Models
Available – Standard
or Advanced features,
Built-in or Separate probe.


Axxiom Manufacturing
Schmidt Improves Conversion Kits

Schmidt's conversion kits turn out-of-date blast pots into high quality, efficient blasters. Quick, easy to install with step by step instructions.
Call 1-800-231-2085


CESCO
PRESSURE WASHERS

• 10,000 PSI
• Electric or diesel models
• Buy or rent from CESCO
• Lease Financing Available
CESCO is your One Stop
Corrosion
Shop
Contact us: 888-772-3726
BlastandPaint.com

 
 
 
Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker JPCL Europe

 
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 2000-2014, 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