A pencil hardness test is a type of evaluation method that is performed to determine the hardness of a material, typically coating materials. To perform a pencil hardness test, graphite pencils of varying hardness are moved across a coating's surface. Its hardness relative to the graphite… View Full Term
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[New Whitepaper 📢 ] Advancements in Water-Based Coatings Technology
Child Tag for content related to application methods.
Polyurea coatings are preferred where other coatings fail to protect the substrate. They have the unique advantage of moisture resistance, rapid curing, and...
By: Shivananda Prabhu
Stick welding, also known as shielded metal arc welding, manual metal arc welding or flux shielded arc welding, is an electric arc welding process.
By: Krystal Nanan | Civil Engineer
Ian MacMoy, an expert on pressure bolt coatings for aggressive corrosion environments, speaks out against oversizing nut threads to accommodate thick bolt coatings, a common practice banned by the standards for bolts that secure high pressure and load.
By: Alan Kehr | Managing Consultant, Alan Kehr Anti-Corrosion, LLC
Metallizing is a general term used to describe the process of applying a metallic coating on the surface of an object. It involves several processes that cause the coating metal to form a mechanical bond with the substrate.
In the decade that I've been working with polyurea spray coating technologies, plus four additional years on the polyurethane chemistry side, we have come a long way in our understanding of the advantages and disadvantages...
By: Kyle Flanagan, B.S. | Technical Director, Freedom Chemical Corporation
Water is an essential ingredient in concrete. Initially, moisture must be present for desired properties. However, excessive moisture in a concrete...
By: Fred Goodwin | Head Corrosion Competency Center, BASF Construction Chemicals
Single-coat inorganic zinc silicate (IOZ) coating provides one of the most durable and cost-effective coating systems available. Properly applied, it...
By: Rob Francis | Consultant, Aurecon Materials Technology Group
I'm often asked questions about holiday testing or, as the Europeans call it, porosity testing. Of course, pinholes in a newly applied coating can leave the substrate exposed to the environment and vulnerable to corrosion....
By: Tom Swan | Manager, M-TEST
Summer is but a forgotten memory and we are well into the cold season in some parts of the world. As the days grow shorter and temperatures plummet, the risk of personnel injuries due to falling on the ice is just one of...
By: Tatsuya Nakagawa | VP of Marketing and co-founder of Castagra Products
In the realm of high-pressure bolting, it is important to understand the dynamics and behavior of fastener systems under load, and how thread engagement is dangerously compromised by nut oversizing.
By: Ian MacMoy | Product Design Specialist, Dox Steel
An exclusive interview with protective coatings expert Louis D. Vincent on coatings specification writing best practices, common mistakes and fundamental considerations.
Cost of salt corrosion coatings failures estimated at over US$6 billion per year, but can Chlor*Rid help this number drop?
By: Corrosionpedia Staff
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