Moody’s Coating Conundrums

Saul's Gloss Loss Solution

Fri, 10 Feb 2023 00:00:00 -0500

What is causing Saul's gloss loss problem and what is the critical concept that is causing the problem? Read Moody’s Coatings Conundrums to learn the solution to this formulating challenge.

Lindsay’s Honeycomb Pattern Answer

Tue, 06 Sep 2022 00:00:00 -0400

What caused the hexagonal pattern to form on the surface of a modified formulation with more solvent? Read Moody’s Coatings Conundrums to learn more about this formulating challenge.

Lindsay’s Honeycomb Pattern Problem

Thu, 04 Aug 2022 00:00:00 -0400

What caused the hexagonal pattern to form on the surface of a modified formulation with more solvent? Read Moody’s Coatings Conundrums to learn more about this formulating challenge.

The Solution to Al’s Frigid Fiasco

Tue, 25 May 2021 11:26:00 -0400

Polly Mertz's new emulsion batch was delayed due to some of the ingredients freezing when left overnight on the dock. Polly, eager to start her batch scale-up, had approved placing the drums in a steam-heated room in the plant to allow for warming and easy pumping. What was the material that caused the problem, and what mistake had Polly made in heating up those frozen drums?

Al’s Frigid Fiasco

Sun, 18 Apr 2021 12:47:00 -0400

Al Kidd's first sign of a problem was the strong, acrid smell that burned his nose. What was the material in the drum that caused the smoke? What had caused the material to react so violently?

The Solution to Saul’s Double Rub Debacle

Tue, 03 Nov 2020 10:51:00 -0500

Why did the change in the additive result in not getting the double rubs that Saul had gotten in the lab?

Saul’s Double Rub Debacle

Thu, 01 Oct 2020 10:20:00 -0400

Why did the change in the additive result in not getting the double rubs that Saul had got¬ten in the lab?

Answer to Lindsey’s Volatile Recommendation

Mon, 06 Jul 2020 09:45:00 -0400

Why did replacing the ester alcohol with a less volatile ester solvent cause the e-coat tank to now be out of specification? What had been wrong with Lindsey’s recommendation?

Lindsey’s Volatile Recommendation

Tue, 02 Jun 2020 09:00:00 -0400

Why did replacing the ester alcohol with a less volatile ester solvent cause the e-coat tank to now be out of specification? What had been wrong with Lindsey’s recommendation?

Answer to Al's Arrested Alkyd Development

Thu, 02 Jan 2020 09:52:00 -0500

Even though the coating properties of the new alkyd formulation matched perfectly the properties of the old formulation, what had been the unforeseen consequence of changing one oil for another in the formulation?

Al’s Arrested Alkyd Development

Fri, 06 Dec 2019 08:00:00 -0500

Moody's Coatings Conundrums: Answer to Saul’s Un-Sellable Formulation

Mon, 03 Jun 2019 08:00:00 -0400

Saul Vance's boss was telling him that the formulation that Saul had developed and tested was being pulled from the market, and Saul can't understand why. Find out was the formulation pulled from the market, and why a change in solvent make the formulation no longer sellable, even though the properties were so similar.

Moody's Coatings Conundrums: Saul’s Un-Sellable Formulation

Wed, 01 May 2019 09:30:00 -0400

Saul Vance's boss was telling him that the formulation that Saul had developed and tested was being pulled from the market, and Saul can't understand why. Why was the formulation pulled from the market? Why did a change in solvent make the formulation no longer sellable, even though the properties were so similar?

Solution to Lindsey’s Curdled Dispersion

Wed, 02 Jan 2019 10:00:00 -0500

Lindsay Doyle's lube emulsion and her customer's acrylic dispersion both crashed and separated like curdled milk. What had caused both systems to crash, and how were the causes related?

Lindsey’s Curdled Dispersion

Mon, 03 Dec 2018 15:15:00 -0500

Lindsay Doyle's lube emulsion and her customer's acrylic dispersion both crashed and separated like curdled milk. What had caused both systems to crash, and how were the causes related?

Solution to Polly’s Botched Scale Up

Thu, 04 Oct 2018 10:00:00 -0400

Polly Mertz's first scale-up of a new emulsion polymer had resulted in the contents boiling out of a 500-gallon reactor. What had gone wrong in the acrylic emulsion production batch?

Polly’s Botched Scale-Up

Wed, 01 Aug 2018 00:00:00 -0400

Polly sat in the lab trying to determine what had botched her reaction. Something in the scale-up had gone terribly wrong, and she needed to find the problem before trying the scale-up again.