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How Do You Spray High Temp Paint?

Published in Paint Application 3 mins read

Spraying high-temp paint effectively involves precise application techniques and proper post-use care to ensure durability and a professional finish.

To spray high temp paint, hold the can 12 to 15 inches from the surface and apply using steady, even strokes, applying two light coats with 10 minutes drying time between each.

Preparing for High-Temp Paint Application

Before you begin spraying, proper preparation is crucial for the paint to adhere correctly and withstand high temperatures. While the specific reference focuses on the spraying technique itself, always ensure your surface is:

  • Clean and Dry: Free from dirt, dust, grease, oil, and rust. Use a wire brush or sandpaper for rust, and a degreaser for oils.
  • Sanded (if necessary): Lightly scuffing smooth surfaces can improve adhesion.
  • Masked: Protect areas you don't want to paint using painter's tape and masking paper.

The Spraying Technique

Achieving an even, durable finish with high-temp paint relies on a consistent and controlled application.

  1. Shake the Can: Vigorously shake the paint can for at least one minute after the mixing ball begins to rattle. This ensures the paint is thoroughly mixed.
  2. Maintain Distance: Hold the can 12 to 15 inches from the surface. Holding it too close can lead to runs, while holding it too far can result in a grainy, uneven finish due to paint drying in the air before reaching the surface.
  3. Apply Even Strokes: Apply using steady, even strokes. Move your arm, not just your wrist, across the surface in a continuous motion. Overlap each stroke slightly (about 50%) to ensure complete coverage.
  4. Apply Light Coats: Apply two light coats. Light coats are critical for high-temp paint as they dry more evenly and reduce the risk of bubbling or peeling when heated.
  5. Allow Drying Time: Allow 10 minutes drying time between coats. This allows the first coat to "flash off" or partially dry, creating a suitable base for the second coat without becoming tacky.

Post-Application Care and Troubleshooting

Proper maintenance of your spray can ensures it's ready for future use and helps prevent common issues.

Cleaning the Spray Head

  • Immediate Action: Clean the spray head immediately after use. This prevents paint from drying and clogging the nozzle.
  • Invert the Can: Turn the can upside down.
  • Clear the Nozzle: Spray until no more paint appears. This clears the nozzle and internal dip tube of any remaining paint.

Addressing Clogging

  • Remove and Clean: If clogging occurs, remove the spray head and clean with a fine wire. A small paperclip or a dedicated nozzle cleaning tool can work well.
  • Soak (Optional): If severely clogged, you can soak the removed spray head in mineral spirits or paint thinner. Ensure it's completely dry before reattaching.

Quick Application & Maintenance Summary

Here’s a quick reference guide for spraying high-temp paint effectively:

Aspect Detail
Can Holding Distance 12 to 15 inches from the surface
Application Method Steady, even strokes
Number of Coats Two light coats
Drying Between Coats 10 minutes
Post-Use Cleaning Turn can upside down and spray until clear
Clogging Solution Remove spray head; clean with a fine wire

By following these precise steps for application and post-use care, you can achieve a durable, high-quality finish with high-temp paint that can withstand the extreme conditions it's designed for.