Tips for Successful Water Infrastructure Coating Application in Cold Weather

Best Practices and Key Factors Affecting Cold Weather Water Infrastructure Coatings

Several factors such as the formulation, how it is applied and severity of temperature play a part in the protective coatings’ susceptibility to cracking and curing in cold weather. There are good painting practices that can be used to help mitigate the risk of protective coatings degradating when applied in cold temperature.

Recommended adjustment to mix ratios per the manufacturer, maintaining proper curing temperatures with external heat and using recommended additives and low temperature hardeners are all methods.

Cold Weather Water Infrastructure Coating Solutions from Sherwin-Williams 

Sherwin-Williams offers a full product line of protective coatings for the water and wastewater industry that are specially formulated to cure more easily in cold temperatures, often referred to as "cold-cure."

When water and wastewater protective coatings encounter cooler temperatures during application, they may thicken, crystallize or, in severe cases, freeze. Understanding how cold temperatures impact resin used in the formulation of protective coatings along with the curing process is crucial for achieving successful applications in less-than-ideal conditions.

How Cold Weather Affects the Curing Process of Water Infrastructure Coatings

The curing process hinges on the chemical reaction between resin and hardener. Temperature is a crucial factor in this equation, and in cooler temperatures, this chemical reaction is significantly slowed down. The frigid environment impedes the molecules' mobility, resulting in longer cure times.

The Risk of Amine Blush in Cold Weather Water Infrastructure Coating Application 

Almost every application in the water and wastewater industry involves an epoxy, applied as either the primer, intermediate or topcoat, or in some cases, all three. Epoxies tend to develop an amine blush on the cured surface. Amine blush is a waxy film that can be quite troublesome. However, it is crucial to know how to prevent and deal with it to achieve a successful cure. If left untreated, amine blush can jeopardize both the strength and appearance of the bond.

Adjusting Epoxy Mix Ratios for Cold Weather Coating Applications

Cold temperatures demand an adjustment to the mix ratio of epoxy resin and hardener that involves introducing a low temperature hardener to compensate for the lower ambient temperature, tipping the balance in favor of a successful epoxy application.

The Importance of Real-Time Temperature Monitoring for Cold Weather Coating Applications

Real-time temperature monitoring utilizing temperature data loggers during the process of curing is not a luxury but a necessity in epoxy water infrastructure applications in cold weather. Timely adjustments based on monitoring data can be the safeguard that maintains the bond's integrity.

Ensuring Successful Water Infrastructure Coating Applications in Cold Weather with Sherwin-Williams

Water infrastructure projects that require application of epoxy in cold weather is a journey. Temperature plays a significant part in the curing time and quality of epoxy, but utilizing the strategies and techniques outlined in this article, applicators can confidently apply resilient and durable epoxy coatings to water infrastructure even in the face of chilly conditions.

For expert advice and the best solutions for your cold weather coating needs, contact Sherwin-Williams today. Our team is ready to assist you in selecting the right products and techniques to ensure your water infrastructure projects are completed successfully, no matter the weather