There are many different things to consider when selecting the appropriate size spray tip for each job. It’s also the smallest size if you are shooting latex paint – not that you would do that with your good HVLP gun.
What Size Spray Tip Should I Use with my Spray Gun? The amount of information on the subject can be overwhelming, so we at the Bottom Paint Store have done our best to make this step easier for you.
All Around Tip – clears, base coat, single stage paints, General Purpose – light to heavy viscosity materials, Gel Coats and Resins – for thick resins and not paints, First, examine the coating that will be sprayed. If you adjust your gun correctly you can use these with clear coats, and also spray base coats easily. How to Select the Right Tip for Your Paint Gun. If you just remember that thinner = smaller and thicker = bigger, it’s pretty intuitive. These tips are only reserved for heavy, high build coatings like rust products, undercoatings, sprayable body filler, and extremely high build primers.
When spraying paint with a compressed air spray gun – whether gravity feed or siphon feed, conventional or High Volume Low Pressure (HVLP) – it’s important to have the gun set up properly for the job.
This causes the tip to have a large impact on the fan width and shape. 1.2-1.3MM- These nozzle and tip combinations are the most fine and therefore work well for thinner coatings. First, examine the coating that will be sprayed. Just curious. Smaller surfaces will require a small fan width to reduce overspray. These smaller sized tips are most commonly used with clear coats and final top coats. 1.8-1.9MM- Now we’re up to the big-boy tips. The 1.4mm tip is perfect for base coats and metallic as the droplet size allows the particles to self-orient to eliminate streaking and mottling. This concludes our rundown of the common sizes of fluid tips for the HVLP spray gun and what they are for, with the most common in red in the above picture. Most boat projects consist of large surfaces and so a wide fan will increase the spray coverage and also provide the ability to spray close to the surface without too much build up. We use these tips often for applying our early stages of primer, especially epoxy primers. Purchasing a set like these will allow you to spray all types of paints from the same gun, making it easier while saving you money. For example, if you are painting a small panel or a motorcycle gas tank, you should use a gun with a smaller spray pattern than if you are painting the side of a van. For spraying clear coats on small parts and projects, we recommend a 1.2mm tip. When in doubt, it’s a good place to start. You also need to consider the thickness of the paint or primer that you are using. Thinner paints run the risk of orange peel, though, because they will not atomize correctly. On TV it always looks oh-so-simple; just pour the paint in the paint gun, pull the trigger and you end up with a beautiful mile-deep paint job! This determines the appropriate fan width that your sprayer will produce, that is, the shape in which the product will leave the gun nozzle. 2.0-2.3mm – For high-build primers and other thick materials. http://boatpaintguide.com/gelcoat-spray-gun-the-right-tool-for-a-great-job/#.U_80dfldVWg, http://esmfg.com/aspnet_client/g860_hvlp_gelcoat_spray_gun.html, http://www.international-marine.com/paintguides/mpg_paintapplication.pdf, http://magnum.graco.com/products/M_Pages.nsf/Webpages/0Spray_Tip_Info, http://www.carcraft.com/howto/ccrp_0511_paint_spray_gun/#ixzz3Bheyr89Z, Bottom Paint Store Blog – How to Articles. Eastwood carries a selection of popular sizes for the guns we sell. The 1.3mm is a great general clear coat tip and is also good for thinner base coats, waterborne and single-stage paints. Choosing the proper HVLP spray gun tip size will give you the right combination of speed, efficiency, results and ease of clean-up. 1.7mm, 1.8mm – 1.7mm is the smallest size you should use for most types of primer. Do not try to use these tips with thicker coatings like high build primers and undercoating. Here are some common tip sizes and recommended usages: 0.5-1.0mm – These are very common in detail spray guns because they provide a much smaller pattern compared to a larger tip on a full size gun. But most important to the quality of the job you are doing is using a gun with the right size fluid tip and needle for paint, primer or whatever else you are spraying. These are used for applying heavy coatings like high build primers and sprayable fillers. 2.0-2.2MM- We’ve now reached fire hose status.
(See chart below.). These sizes are also a good choice for lacquer paints. If we were stuck on a deserted island and had to paint our car we’d choose one of these tips.
2.0-2.2MM- We’ve now reached fire hose status. 1.4-1.5MM- These tips are the middle of the road and can be used for the widest variety of coatings. For example, primers are usually thicker than the accompanying paint so you should use a 1.7 or 1.8 mm tip to prime most surfaces. ©2017 The Eastwood Company.
It is not a very common size but is currently offered on the Eastwood Concours LT Gun. 1.2mm, 1.3mm – Good for clear coat and thinner base coats. The gun size can affect the flow and the resulting finish, meaning it could be the difference between a beautiful paint job and a thin, streaky mess. For spraying a whole car, a 1.3mm tip is recommended. Airless spray guns have more control over the fan width than conventional spray guns because the coating is forced through the tip without being atomized by air. 1.6-1.7MM- This larger tip is great for base coats and allows you a larger deposit of the coating on the surface. All rights reserved.
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