What does HVLP mean, and why is it important for automotive painting?

HVLP stands for High Volume Low Pressure. HVLP spray guns use a high volume of air at a low pressure to atomize paint, resulting in a softer spray, less overspray, and higher transfer efficiency compared to conventional spray guns. This is particularly important in automotive painting for achieving a smooth, even finish while minimizing paint waste and air pollution. Many professional painters, and even DIYers, use HVLP guns like the DeVilbiss StartingLine for base coats and clear coats to get the best possible finish.

What are the key differences between gravity feed and siphon feed HVLP spray guns?

Gravity feed HVLP spray guns have the paint cup located on top of the gun, allowing gravity to assist in feeding the paint to the nozzle. This generally results in more efficient paint usage and easier cleaning. Siphon feed guns have the cup below the gun, using a vacuum to draw the paint up. They can be better for spraying at different angles, but may require more air pressure. Consider a gravity feed gun like the Sharpe FX3000 for general purpose painting, or a siphon feed if you need to spray upwards often.

What size fluid tip should I use for different types of automotive coatings in an HVLP gun?

The ideal fluid tip size depends on the viscosity of the coating you're spraying. Generally, thinner materials like sealers and base coats require smaller tips (1.2mm - 1.4mm), while thicker materials like primers and clear coats need larger tips (1.4mm - 1.8mm). Very thick coatings like bed liners may require even larger tips. Always check the coating manufacturer's recommendations for the optimal tip size. Some HVLP kits, like the DeVilbiss StartingLine, include multiple tips for different applications.

How do I properly clean and maintain an HVLP spray gun?

Proper cleaning is crucial for maintaining HVLP spray gun performance and lifespan. Immediately after use, empty any remaining paint and flush the gun with the appropriate solvent for the coating you used. Disassemble the fluid tip, air cap, and needle, and clean them thoroughly with brushes and solvent. Use pipe cleaners for small passages. Reassemble the gun and lubricate moving parts as needed. Regular cleaning prevents clogs and ensures consistent spray patterns. Always consult the manufacturer's instructions for your specific gun, such as those from Sata Spray Equipment.

What air pressure and CFM (cubic feet per minute) are typically required for HVLP spray guns?

HVLP spray guns typically require lower air pressure at the air cap (usually around 10 PSI) compared to conventional guns. However, they need a higher volume of air (CFM) to atomize the paint effectively. The exact CFM requirement varies depending on the gun model and fluid tip size, but most HVLP guns need between 5 and 15 CFM. Always check the manufacturer's specifications for your specific gun, like the Sharpe FX3000, and ensure your air compressor can provide the necessary CFM at the required pressure.

What are the benefits of using a mini HVLP spray gun?

Mini HVLP spray guns are smaller and more maneuverable than full-size guns, making them ideal for detail work, spot repairs, blending, and painting small parts. They also tend to use less air, making them suitable for smaller air compressors. While they may not be suitable for large-scale painting projects, they can be a valuable addition to any painter's arsenal. A mini gun such as the Sata Minijet is great for getting into those hard to reach spots.

Can I use an HVLP spray gun to apply bed liner material?

While some HVLP spray guns *can* be used to apply bed liner material, it's crucial to choose a gun with a large enough fluid tip (typically 2.0mm or larger) and ensure it's designed for thicker coatings. Applying bed liner with an undersized tip can clog the gun or result in a poor finish. Some bed liner materials may require specialized spray guns designed specifically for their high viscosity and texture. Always consult the bed liner manufacturer's instructions and the spray gun specifications before attempting to apply bed liner.

What safety precautions should I take when using an HVLP spray gun?

Safety is paramount when using HVLP spray guns. Always wear a respirator to protect yourself from inhaling potentially harmful paint fumes and particles. Use in a well-ventilated area or spray booth to minimize exposure. Wear eye protection, gloves, and appropriate clothing to protect your skin from overspray. Never spray near open flames or sources of ignition, as many automotive coatings are flammable. Always follow the manufacturer's safety guidelines for both the spray gun and the coating you're using.

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DeVilbiss | GTI-620G | GTiMillennium HVLP Gravity Feed Spray Gun DEVGTI-620G

Name: GTiMillennium HVLP Gravity Feed Spray Gun DEVGTI-620G
Brand: DeVilbiss
SKU: 92537
Price: 610.2 USD
Availability: Discontinued
Rating: 3 (1 reviews)

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Specifications

The DeVilbiss GTiMillennium HVLP Gravity Feed Spray Gun, model GTI-620G, is engineered for professional finishing applications. This unit weighs 3 lbs, providing a balanced feel during operation. Its compact dimensions of 5.4 x 5.8 x 10 inches facilitate maneuverability and comfortable handling.

Key Features

This DeVilbiss GTiMillennium spray gun incorporates High Volume Low Pressure (HVLP) technology, designed for efficient material transfer and reduced overspray. The gravity feed system ensures consistent material flow and allows for optimal paint utilization. An ergonomic design enhances user comfort during extended use. The precision-engineered air cap and fluid tip deliver a fine, atomized spray pattern suitable for a variety of coatings.

Applications

The GTiMillennium HVLP Gravity Feed Spray Gun is ideal for a broad range of finishing tasks. It excels in automotive refinishing, including the application of basecoats, clear coats, and primers. This versatile professional spray gun is also well-suited for woodworking, furniture finishing, and general industrial coating applications where a high-quality finish and material efficiency are paramount.

Benefits

Utilizing the GTiMillennium HVLP spray gun provides significant advantages, including reduced paint waste due to its high transfer efficiency. Users achieve a superior, consistent finish with minimized mottling and streaking. The comfortable design reduces operator fatigue, enhancing productivity. Precise control over the spray pattern and fluid output allows for meticulous application, delivering professional results across various projects.

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DeVilbiss Homepage
Model: 92537
Shipping Weight: 3lbs
Manufacturers Part #: GTI-620G
Manufactured by: DeVilbiss
Also Known As: DV170156, DV170156, DEVGTI-620G, DEV-GTI620G