Powder coatings and liquid coatings have risen in popularity by 3% each year since 2020. Powder coating is the preferred dry finishing method in the industrial finishing market, accounting for over 15% of customer requests. A professional powder coating process calls for surface preparation before applying the coating. Sandblasting, an abrasive blasting technique, is ideal for preparing for powder coating as a professional finish. Sandblasting ensures that the coating adheres perfectly to the surface and offers a durable finish. The sandblasting technique is a vital part of the powder coating process and is much better than sanding by hand.
What is Sandblasting?
A sandblaster is an industrial-grade machine that applies high-pressure jets of abrasive particles like sand, glass beads, or walnut shells to clean surfaces. The sandblasting process removes rust, refinishes metals, and prepares concrete surfaces for painting or adhesives.
Sandblasting is also used to grind machine surfaces to remove welds from castings or clean up machinery between production run batches. Sandblasting is preferred over other removal methods for the following reasons:
- Easily and readily available professional sandblasting services
- It leaves a nice even surface
- It does not involve harmful chemicals
- A fast and inexpensive method
What is Powder Coating?
Powder coating falls under the dry finishing methods. The technique utilizes a powder made of resin and pigment particles sprayed onto a previously cleaned surface during the finishing process.
A powder coating enhances the surface’s appearance and offers a sturdy protective layer. The electrostatically sprayed powder coating adheres to the surface. Powder coating is the finishing of choice for most industries because:
- It’s durable
- It is environmentally friendly
- It is more cost-efficient than liquid coating
Combining Sandblasting and Powder Coating for Excellent Results
Any surface must undergo prior cleansing of all paints, oils, dirt, and rust for effective powder coating. Damaged plating and impurities can cause defects in the powder coating finishing or completely sabotage the coating.
Sandblasting efficiently and effectively removes corrosion, rust, and contaminants from target surfaces, leaving a clean and even surface. Its primary advantage is leaving a “tooth” or a profile on the surface.
A profile is thousands of microscopic scratches on the surface that essentially offer more room for the powder coating to adhere. It allows the powder coating to stick to the entire surface effectively, better than it would on a smooth surface.
Sandblasting leaves a consistently textured finish evenly over the surface. The surface profile it provides guarantees that the coating will adhere properly and won’t peel away over time, a complication known as delamination. Sandblasting and powder coating work together to create an appealing, professional finish.
Contact Frank T. today to learn more about the powder coating process!
If you have more questions, Frank is ready to answer them! With over a decade of experience in the coating industry, Frank knows what it takes to create a lasting finish. He’s known across the country, and his impressive work has been featured on the Discovery Channel. When you ask for a professional in powder coating, you’ll probably be directed to Frank’s workshop. Whether you’re in Rockville, MD, or outside of the Maryland area, Frank can help! Give him a call or text at 301-798-9952 and get started on coating your project.