What Is a Paint Agitator?
A paint agitator is a device used to mix paints that tend to settle and separate in containers. They are crucial in preventing composition changes in paints containing special beads or finishing agents, which can affect the final product’s quality.
Without proper agitation, uneven mixing can occur, especially in containers with corners, like 1-ton cans. This unevenness can lead to defects in the finished product, such as “bumps and debris,” if dry film returns to the paint.
Applications of Paint Agitators
Paint agitators are commonly used before applying coatings. Many designs feature rings on the blades to prevent contact with the container walls, ensuring efficient mixing without damaging the container.
Agitation can cause a rise in temperature, altering paint viscosity and impacting workability. It is important to agitate paint considering subsequent use and curing times.
Principles of Paint Agitators
Typically powered by air motors, paint agitators allow for adjustable speed and torque, essential for mixing different paint types. This system is safe for paints containing organic solvents, as it avoids the risk of sparking.
Air motor-driven agitators operate by compressing air inside the motor, generating rotational force through the difference in vane area. This design allows for compact size, efficient air cooling, and continuous use without overheating. Additionally, the lack of oil in the power source prevents oil drips, avoiding paint film defects like “hazing.”
Other Information on Paint Agitators
1. Paint Mixer
Paint agitators, also known as mixers, come in various models. They use motors to rotate mixing blades, efficiently blending paint and other materials. When selecting a paint mixer, consider motor speed, torque, and blade shape, which depend on the paint’s viscosity and the amount being mixed.
Modern mixers often offer variable speeds and torques. For low-viscosity materials like primers, choose high-speed, low-torque mixers. For thicker materials, opt for low-speed, high-torque mixers. Blade size and shape should match the paint type and quantity, ensuring effective and safe mixing.
2. Method of Mixing Paint
When stirring paint with an agitator, proper technique is crucial. Secure the paint container between your feet to prevent movement during agitation. Ensure the agitator’s cord is well-managed to avoid entanglement with the mixing blade, preventing accidents.