Select Appropriate Feed Type for Coatings

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What happens here

The choice between gravity and bottom-feed (or pressure pot) depends on the specific coating and application. For tasks like spraying cabinet doors in a booth, gravity feed might be suitable. However, for most woodworking finishes and general use, a bottom-feed or pressure pot system is often preferred due to its smaller overall footprint (as the cup doesn't add height above the gun) and ability to handle larger volumes of material. While some specialized coatings, like certain automotive metallics, are traditionally associated with gravity feed in automotive applications, the speaker notes that a high-quality HVLP bottom-feed system can handle many such materials effectively. Ultimately, for standard finishes, the primary consideration is often practical preference and maneuverability rather than strict necessity for a particular feed type.

Goal: When selecting a feed system (gravity or bottom-feed/pressure pot), consider the project scale, material type, and workspace. While gravity feed is common in automotive, bottom-feed/pressure pots often offer better maneuverability and larger capacity for general woodworking finishes.

Tools and materials

Bottom-Feed Cup
Gravity Cup
HVLP Spray Gun
Pressure Pot System
Automotive Metallics
Woodworking Finishes

What they say

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depending on what you're doing most guys in woodworking especially spraying cabinets in that i usually don't recommend the gravity unless you're spraying doors on a in a booth or something like that because then you can get into it but if you look at the overall footprint and the size of the spray gun when you're using a gravity gun versus a cup gun because you have your cup hanging down underneath and you're using the handle as part of your part of the overall height of the gun you actually have a smaller footprint with a larger cup with a four cup on the bottom than you do with anything on the top so just keep that in mind when you're selecting the cup choice that you're using there is no advantage i don't believe it's really a preference thing uh when you're using which type of cup you like you know that you use so there's no reason for you to have to use a gravity cup or for you to have to use a bottom cut well there's some products that have to go through like that amount of stuff that we would spray has to be to the top really because i've sprayed automotive metallics and that never had a problem out of the bottom yeah okay so there might be certain instances where you have to use gravity but for the most part most of your standard finishes that you're using in woodworking in that you don't need to use gravity but most kind of sorry is that a conventional air that you're talking about hbop yeah it's a specialized metal flake finish that he's talking about but yeah it's a very specialized finish yeah but typically you don't need to do that it's really a preference things most of the guys that you see using gravity feed guns in woodworking have gone down to their local automotive shop and picked up an automotive spray gun and that's what they're using and that's why because typically in automotive that's 199 of the time they're using a gravity with a top feed okay um all of our systems are back the

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