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3 Common Mistakes Made with Plural Component Spray Equipment


There are numerous benefits to plural component equipment some of which include faster curing times and effortless application. However, if you are used to using a brush and roller, you will be quick to realize that this is a much more sophisticated process. For those that are not technically inclined will inevitably struggle in the beginning. Fear not, by mastering these 3 areas, you can become a competent plural component applicator.

Poor Maintenance
Taking good care of your equipment is essential for any successful operator. There are many daily maintenance tasks that need to be performed before, during and after the coating process. The manufacturer will provide you with a list of items that need to be checked, cleaned and replaced if necessary. Some of these items include the filters and the various spray gun parts. Without proper maintenance the chances that the equipment will function properly are slim to none. I have often heard the use of plural component equipment being compared to a manufacturing process. In order for the product to be successfully installed each step of the process needs to be performed properly. It is not an insurmountable task, it just requires a bit of practice and discipline.

Poor Preparation
Maintenance is part of the preparation, but this is more than having the right equipment and spare parts onsite. This would be related to properly assessing the project requirements and project conditions to ensure you have the right people and the right communication systems in place. For example, a small crew doing a coating job could be composed of the following:

• One person that would be spraying the coating.
• One person assisting with the hose or in a confined space environment, monitoring from the manway.
• One person monitoring the pump equipment, logging the operating conditions of the equipment and monitoring the supply of the coating material.

Communication between these individuals is critical to ensure no off–ratio product is shot and that proper safety measures are taken.

Other preparatory consideration could include heating the coating material over night with heating blankets to minimize start up times the next day. Disorganization in this area could cause an unnecessary delay that could affect the quality of the project.

Not Leveraging Technology
With advances in plural component technology, it is possible to set ratio alarms on the equipment that will either warn you when you are outside your acceptable range or turn the equipment off completely. To be clear, you do not want to solely rely on this technology, but it is a good back up system to ensure that nothing catastrophic happens. Depending on the equipment, application and environment these ranges can be different. Experiment and find what works best for you.

If you have not used plural component equipment before it can seem daunting at first, but if you work to become disciplined at the above tasks, it will turn into a profitable and enjoyable process. Good luck out there.

TNphoto Tatsuya Nakagawa
Tatsuya Nakagawa is the VP of Marketing and co-founder of Castagra Products, a storage tank and wastewater coatings manufacturing company that is highly acclaimed for its sustainable coatings, cold weather tank and secondary containment coating applications, and its durable frac tank coatings. Castagra is used by the world’s top oil and gas field services companies.