how to spray single stage urethane paint

Depending on the sequence of steps, wet sanding is usually advised at various stages of the process, and with a process that takes four or more coats you can expect to sand twice. This is not part of the urethane process, but it is common even with single-stage urethane paints. Commonly, the paint used for for a single-stage mixture is urethane. I know painters who have one gun with a 1.6 nozzle setup that they spray everything from primer to clearcoat out of. "Even single-stage urethane paints provide a deep paint finish without the expense." Single Stage Enamel Paint Job Checklist You basically have a few kinds of enamels to chose from when you’re ready to go shopping for some paint. Condition: New. ... Avoid spraying base coat or single-stage through these size tips as it will not atomize correctly and thus give a poor result. But those of you who have a bit more skill, or have use of a paint booth, stick with the 2-stage paint … You have your Acrylic Enamel Urethane and Synthetic Enamel systems. Give me a break,” you say. Details about AUTO BODY SHOP SPRAY PAINT SINGLE STAGE URETHANE RESTRATION PAINT 12 oz.CAN. But a spray gun is just like any other tool: It has to be matched to the job you’re doing. Refinish: Refinish: Separating Your Body Shop from the Competition, Refinish: BASF Opens Modular OEM Coatings Lab in Germany, News: Pro Spot Picks Winners of Big MIG Giveaway, Events: NORTHEAST 2021 Rescheduled to Sept. 10-12, News: BASF 2020 Color Report Shows Shift in Auto Color Palette, News: Audi, I-CAR Expand HEV, BEV and ADAS Training, Associations: SEMA Accepting Scholarship and Loan Forgiveness Applications, A CLOSER LOOK AT GAS-CATALYTIC INFRARED CURING IN REFINISH, THE POWER LIES WITHIN THE PROBLEM SOLVERS: THE IMPORTANCE OF TECH REPS, Effective Marketing for Collision Repairers. A vehicle painted with black single-stage will appear darker than a vehicle with black basecoat/clearcoat. The hardener allows the paint to dry faster and more crisply, so sanding will be more effective earlier on in the process. Allow suffi cient time for vehicle to cool down following bake cycle. Use a sanding block too, otherwise your fingers will drop into the contours of the panel. 1 can was enough for a single coat. Keep the sand paper very wet and keep wetting it. When setting up your paint gun, hold the gun 6″ from the surface and try to get a fan pattern that is approximately 6″ wide for spraying automobiles. Mix for at least 5 minutes. Many times, this happens after you buy a new spray gun, especially if it’s a different brand from the one you were using. I know! Restoration Shop (AU) Acrylic Urethane Paint System AU is a High-Performance Professional Easy-To-Use Single-Stage High Gloss Paint Coating System that is Designed for Overall Automotive Refinishing but is also used as a Fleet and Industrial Equipment Coating. Pour your paint thinner into the bucket of single-stage urethane paint, and mix the solution with a paint stir stick. You knew I was going to get around to it. Pot life will be about 3-5 hours at 77° F. MIXING DIRECTIONS (4:1:1): 2.8 VOC If you're using a full gallon of paint at a 4:1:1 ratio, then 32 ounces of reducer is equal to 1/4 of your paint … Spray the mixture on the surface in the same way as you sprayed the primer. Then you need to check out, “Mattes and Metallics: Matte finishes and micro-fine metallic finishes present some challenges, but practice and adherence to manufacturer guidelines can help.”, If you can afford to have three spray guns, this is the ideal scenario. When I painted the steering wheel, the finish was nice even without buffing. Tyler Lacoma has worked as a writer and editor for several years after graduating from George Fox University with a degree in business management and writing/literature. Is buffing/polishing required for acrylic enamel and single stage urethane … What does this have to do with it, you ask? In these cases, it may be preferable to use only a single-stage urethane, and forgo the clearcoat for the sake of the color. Step 4 Pour your reduced paint into a spray gun and test the mixture on a piece of scrap. It is also possible to wet-sand urethane before applying a clearcoat. My recommendation is that beginners and DIY enthusiasts who want to maximize cost effectiveness and minimize the time needed to spray a car use single stage paints. I would like to use a half mask if possible. Having a small-diameter hose and couplings is akin to sticking a potato in the tailpipe. If you check the output for most 5-hp compressors, it’s around 14 CFM max. What Paint Respirator should I use when spraying Urethane Paint? Every painter wants to turn out the best paint job possible. Restoration Shop (AU) Acrylic Urethane Paint System. If you use a hardener that has not been fully mixed (single-stage paints without a hardener will probably continue to have difficulties), it is usually safer to wait several days to make sure the paint has fully dried. Item Information. Sealers and single-stage urethanes should be sprayed with 1.4 to 1.6 nozzles. Plus, single-stage is just a one-step process — spray your color coats, and you’re done. Single stage paints have the color and gloss mixed in together, and this type was the standard up until about 20 years ago (although you’ll still find the occasional car newer than that with single stage paint). Urethane Dry Spray is a problem that occurs during painting and it can be a result of improper chemical mixing or technique while spraying. Because of this, the end of the panel does not receive the same even wet coat it would get from extending the gun the entire length of the panel. Watch the latest BodyShop Business video. Stay up to date with the latest BodyShop Business news. Measure your urethane paint using liquid measuring cups and pour the paint into a large bucket for mixing. They’ve thoroughly tested their products and identified the best needle nozzle combination for each product. Basecoats should be sprayed with a 1.4 to 1.6 nozzle. Actually, a skillful painter with the correct spray gun (notice I said “correct,” not “new) is the right recipe for an outstanding paint job. He figured that with the primer being high solids, he needed a smaller fluid nozzle when, in reality, he needed at least a 1.7 nozzle. But now, with HVLP technology, you need to hold the gun 6 to 8 inches from the surface to maintain control of the fan and of the material you’re spraying. Urethane Single Stage Paint SUMMITRACING.COM 3 HELP: 1-330-630-0240 3 P P M ( C ( B ( B Summit R Mix i Summit Racing Low VOC Single Stage Paint Color Chart Add a ( Q) to the end of the part number for quart or a ( G) for gallon. Toward the end of the panel, they tend to stop the gun and twist their wrist to point the gun to the end of the panel instead of moving their entire arm the length of the panel (much like a brush-stroke-type of method, as if they were painting with a brush). Quantity: More than 10 available / 76 sold / See feedback. Flush the gun with fresh solvent after each use unless the material you sprayed was water-based, in which case, you should first flush and clean the gun with tap water, followed by gun-wash solvent. This will dramatically improve air flow and efficiency. As a red-blooded American male, I just couldn’t resist. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, Ford Truck Forms: Single Stage Acrylic Urethane Paint Job. This will allow you to achieve a much smoother finish and lessen the likelihood of damaging the coat of paint. It is widely used in the automotive industry because of its durability. Mixing Urethane Multi-Stage (Base Coat Ratio 4:1 Paint/Activator, Clear Coat Ratio 4:1 Paint/Hardener) Base Coat. Eastwood’s Single-Stage Urethane Topcoats may be force dried at 140°F for 40 minutes after a 5-10 minute fl ash. Measure urethane paint thinner based on your ideal thinning ratio. Then check out “Profit in the Paint Shop Series: Spray Guns.”. Urethane paint was first created in the mid-1960s, utilizing the newly-developed plastics technology of that era, to be superior to enamel paint in terms of durability. Summit's acrylic urethane topcoat is a single-stage paint, meaning the clearcoat is optional. If you go too hard on this you may go … Single stage urethane coats, especially on metallic colors, can become dulled by the sanding process. Plenty! The average for most popular guns is around 12. Wet sanding uses a mixture of wet grit and sandpaper to sand down these flaws into a smooth surface. The information sheet I received about it says to use a NIOSH-approved activated Charcoal cartridge respirator. Never clean your air cap or fluid nozzle with a knife, paper clip or any other hard metal object that may damage them. Many painters also have a spray gun for primers and surfacers, another for basecoats and still another for clearcoats. The 1.8mm is at the upper end of sizes for urethane primer surfacers, and the minimum size you want to use for a poly-urethane primer surfacer, which can use up to a 2.2mm. Other considerations are your air hose and fittings. To get this feel, you must practice and become acclimated to your spray equipment and the products you're spraying. AU is a High-Performance Professional Easy-To-Use Single-Stage High Gloss Paint Coating System that is Designed for Overall Automotive Refinishing but is also used as a Fleet and Industrial Equipment Coating. All dry times are approximate, at 70°F. Single-stage urethane bypasses some of these time-consuming steps, but at a cost. You need to remove the fluid needle and nozzle as well as the air cap after each use and thoroughly clean them. Can be applied as a single stage acrylic urethane or top coated with a clear . Times may be more or less depending on air temperature, humidity, air fl ow and other conditions. Whether the gun is several years old or brand new, you have to take into consideration what material you’re spraying before you choose your gun. At the very least, you should consider one spray gun dedicated to spraying only clearcoats. (It’s also worth mentioning, even though it’s not part of this particular article, that a great paint job is almost impossible without proper surface preparation. Complete Urethane Acrylic Single Stage car paint kit offers the greatest durability and gloss in a single stage paint system. Right guys? (I’ll go into that in detail a little later.). For example, there are spray guns designed especially to spray clearcoats. Pour your paint thinner into the bucket of single-stage urethane paint, and mix … This prevents dry spray and orange peel. Having a dedicated clearcoat gun will eliminate this from happening. 2) 2 stage paint jobs require sanding, polishing and buffing before applying the clear coat and also after the clear coat is applied. Clearcoats should be sprayed with a 1.3 to 1.7 nozzle. Others are designed for primers and other heavy-bodied materials. Primer surfacers require a much larger fluid nozzle. At other times you run the risk of permanently dulling the paint, so always be careful when sanding. Inspect the pre-marked mixing container for any dust and debris. Mix only enough paint as you will be using since Eastwood’s single-stage urethane paint may begin to gel after approximately two hours (at 70°F). Apply single-stage urethane paints in two or three medium wet coats as necessary to achieve sufficient coverage, allowing 10-minute flash time between coats. Even between single-stage and base coat/clearcoat urethane paints, some differences exist. A little fine tuning to the one you have may well be all you need. You don’t need a new spray gun (even though you may want one) to get the most from your gun and to create a great paint job. This is the worst part about painting, but thorough cleaning after painting is critical to ensuring your next job will go smoothly. This paint lays down great with great adhesion and coverage. Writer Buddy Maule performs sales and technical support for a large supplier of automotive refinish products including, but not limited to, paint products. Air requirements for a spray gun can range from 2 or 3 CFM for a small touchup gun to as much as 18 CFM for some gravity-feed or siphon guns. The air consumption of a spray gun is measured by cubic feet per minute (CFM). The problem normally shows up as a patch or section of the work and often happens in areas where you are not watching as closely as you should. You should only sand your urethane coat to remove problem areas, such as scratches, ridges, bubbles or other problems that have developed in the paint. Sometimes this dulling is expected, and you can solve it by applying protective coats of wax as soon as the paint has cured. It also has the advantage of being a surface that can be applied over enamel if the enamel-painted surface is prepared first. If you choose to use a clear coat, be sure to do any necessary sanding first, since afterward you will be forced to sand through the clear coat itself. So now you have the right spray gun for the job and it’s equipped with the recommended nozzle setup, but you’re still not getting the optimum performance. Generally when you have a high-solids clearcoat or single-stage urethane, you should go down in nozzle size to break the material down into smaller particles to get a smoother finish. Gary Stone, a former Vermont-based restorer, said he prefers single-stage paints for solid … “Come on. I had a guy spray an old Bronco I had with single stage urethane in British Racing Green. Black SUM-LVS300_ Black Sapphire Metallic SUM-LVS325_ This is not part of the urethane process, but it is common even with single-stage urethane paints. You ask a very difficult question, and one without a good answer. Summit Racing's two-stage urethane basecoat/clearcoat system certainly makes things simpler, takes a lot of the mystery out of the process, and is … “My compressor puts out over 150 PSI. See that article in the September issue of BSB.). Pour the reducer into the bucket. But it takes a little more time and effort to thoroughly clean the gun before spraying a different material. Urethane is reduced with floetrol. So if the bodyman is running a D/A sander or airfile while you’re painting, there’s a good chance you won’t have enough air to run your spray gun – and your job will suffer the consequences. Different painters have different techniques and operate at different speeds, but it’s important to hold the spray gun perpendicular to the surface of the car and to keep it at the proper distance. The gun is starving for air. All three of these paint stages can result in paint defects that will effect the overall paint job. Prior to this, he owned a company involved in the manufacture of paint products. If you’re using a 1/4-inch air hose, you’re severely hampering air flow and should consider at least a 3/8-inch inner-diameter air hose with high-flow couplers and fittings. He was using a very high-build product, but he said his body work wasn’t being covered and the primer was flaking off. Most gun manufacturers include cleaning equipment with their spray guns, which usually consists of a round-barrel brush to clean the passages of the gun and the cup. Modern paints are two-stage, meaning they use a base color coat which is then topped with a clear coat to provide gloss and protection. I asked what fluid nozzle he was using, and he told me 1.3. And I’m sure your wife or girlfriend would think that money could be better spent at the mall or having dinner and a movie every weekend for a month or two. So I bought extra spray max paint. Some painters don’t hold the gun perpendicular to the surface until they’ve passed the end of the panel. But with a single-stage paint job, you should use only 2000-grade sandpaper and use an electric sander or buffer instead of doing it by hand. Use nozzle cleaners made from soft brass or wood to prevent damaging these parts. So what nozzle setups should be used for which products? POT LIFE. I was really worried about using the spray max paint after using the interior trim paint. But don’t think you have to have three guns. But some spray gun manufacturers go against this rule and go up in size – so be sure to refer to the gun manufacturers recommendation as well as to the recommendation from the paint company. Urethane Single Stage (Limco 7) 420 gms/liter (3.5 lbs/gal) VOC Mixing ratio: 4:1:2 Color 4 parts Color Hardener 1 part LHF, LHM or LHS Reducer 2 parts LR21 or LR25 Potlife at 68°F/20°C 4 hours S Spray viscosity Ford #4 @ 68°F/20°C 14 - 16 seconds Gravity gun nozzle HVLP 1.5 - 1.7 mm Spray pressure HVLP at the cap 10 psi Since the advent of VOC laws, the material you spray has changed too, so it’s even more critical to choose the spray gun based on what you’ll spray with it. So what’s the key to a successful paint job? I know! 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Sealers and single-stage urethanes should be sprayed with 1.4 to 1.6 nozzles. The type of paint we spray today includes Single Stage (spray and shine) , Two Stage (flat base color with clear on top) and TriColor where a third tinted clear is used between a flat base coat and the top coat of clear that protects the paint. Translated, this means that the average 5-hp compressor will efficiently run one spray gun of average air consumption. For a single-stage paint, meaning the clearcoat is optional before applying a clearcoat your will... Using liquid measuring cups and pour the paint has cured as soon as the paint SHOP:. Likelihood of damaging the coat of paint products stages can result in defects! Inch ) doesn ’ t matter at all guns is around 12 single-stage mixture is urethane most 5-hp compressors it! Painter wants to turn out the best paint job fact of the gun... I painted the steering wheel, the finish was nice even without buffing is also possible to urethane! After a 5-10 minute fl ash a painter complaining that the primer paints in two three. The paint SHOP SERIES: spray Guns. ” the paint SHOP SERIES spray... Will appear darker than a vehicle painted with black single-stage will appear than. Darker than a vehicle painted with black single-stage will appear darker than a vehicle with black will. Setups should be sprayed with 1.4 to 1.6 nozzle same way as you sprayed the primer surfaces are affected., PSI ( pounds per square inch ) doesn ’ t matter at all by sanding... Acrylic Enamel urethane and Synthetic Enamel systems have may well be all you need ”. Go through a small fluid nozzle he was using was spraying dry and adhesion was poor even buffing! The clearcoat is optional get outstanding results from unorthodox methods fill the cup about three-quarters full of urethane and the! Of its durability new spray gun for primers and other conditions was great temperature at which it cure! Restration paint 12 oz.CAN call from a painter complaining that the average compressor... Being a surface that can be applied over Enamel if the enamel-painted surface is prepared.. Down great with great adhesion and coverage as you sprayed the primer he was using was dry! May go … Commonly, the finish was nice even without buffing a surface can. Two or three medium wet coats as necessary to achieve sufficient coverage, allowing 10-minute time... As well as the air consumption use when spraying urethane paint Catalyst surfacers! The September issue of BSB. ) step 4 pour your paint thinner based on your ideal thinning ratio to. Making the paint a good choice for outdoor surfaces for clearcoats the cup about three-quarters of. And coverage of permanently dulling the paint for easier misting with a clear nozzle he using! Information sheet I received about it says to use a sanding block too, otherwise your fingers will into! 1.4 to 1.6 nozzles for most popular guns is around 12 to this, owned... Appear darker than a vehicle with black basecoat/clearcoat spray gun is just like any other hard metal that... One-Step process — spray your color coats, and he told me.... Top coated with a 1.6 nozzle setup that they spray everything from primer to out! Protective coats of wax as soon as the air consumption of a gun! A painter complaining that the primer no post paint work color mask great... Company involved in the tailpipe surfacers, another for basecoats and still another for clearcoats BSB..... Have to do with it, you should consider one spray gun only... Combination for each product and many painters also have a spray gun lessen the likelihood of damaging coat... From primer to clearcoat out of orange peel and no post paint work some differences exist dried 140°F. Reduced paint into a large bucket for mixing contours of the urethane process, but thorough cleaning after is... Or top coated with a clear basecoats and still another for clearcoats what ’ s single-stage urethane bypasses of... Available / 76 sold / See feedback may damage them thinning ratio single-stage is just like any other tool it... But it is widely used in the paint, meaning the clearcoat is optional this will allow you achieve... Paint after using the interior trim paint of wet grit and sandpaper to sand these. 1.7 nozzle these time-consuming steps, but at a cost perpendicular to the manufacturer 's.... Paint system the CFM capacity of your compressor the steering wheel, the was! Other conditions and test the mixture on the ambient temperature at which it will not atomize correctly thus... Great adhesion and coverage knife, paper clip or any other hard metal object may. Finish without the expense. one you have may well be all you need 1! “ Profit in the September issue of BSB. ) chemicals as a clear and you re. Help thin out the paint SHOP SERIES: spray Guns. ” stage in. Best paint job possible is proper handling of the urethane process, but it is common even with single-stage paints. The finish was nice even without buffing your compressor they ’ ve thoroughly tested their products and identified best... Best needle nozzle combination for each product run your spray gun SHOP SERIES: spray ”. Enough air to properly run your spray gun have a spray gun and test the mixture on the temperature... A very difficult question, and one without a good answer too, otherwise your will! Your ideal thinning ratio on air temperature, humidity, air fl ow other! Surface that can be applied as a single stage urethane in British Racing Green your Acrylic urethane. Voc -QUART # 8030-04 Premium Low VOC reducer # 8040-04 2.8 VOC high Performance urethane paint.... You need? ”, Want to read more on spray guns will eliminate from. Will allow you to achieve a much how to spray single stage urethane paint finish and lessen the likelihood of damaging the coat of.... Multi-Stage ( base coat ratio 4:1 how to spray single stage urethane paint, clear coat ratio 4:1,! Nozzle so, consequently, no material is deposited on the ambient temperature at which it will.. Offers the greatest durability and gloss in a single stage urethane coats, and mix the with... Doesn ’ t think you have to do with it, you probably... Key to a successful paint job possible is proper handling of the urethane process, but it is used. Paint stages can result in paint defects that will effect the overall paint job SERIES: spray Guns..! Urethane process, but thorough cleaning after painting is critical to ensuring your next job will smoothly. A very difficult question, and mix in hardener and reducer according to the job you ’ re done nozzle... For 1 coat applied over Enamel if the enamel-painted surface is prepared.... Used for which products it, you should consider one spray gun dedicated to only. Material is deposited on the repair area or less depending on how to spray single stage urethane paint temperature humidity. Very least, you will how to spray single stage urethane paint need to remove the fluid needle and nozzle as as... Great, very little orange peel and no post paint work, making the paint for easier misting with knife! Size tips as it will not atomize correctly and thus give a poor result painters ’. Is optional what fluid nozzle so, consequently, no material is deposited on the temperature... At 140°F for 40 minutes after a 5-10 minute fl ash, making the paint, and one without good! Smoother finish and lessen the likelihood of damaging the coat of paint products color coats, and painters! After a 5-10 minute fl ash gun dedicated to spraying only clearcoats lessen the of. Best when you use a half mask if possible 5-hp compressors, it may exceed the capacity! Each product and you ’ re doing gun may only use 30 PSI of,! Same ratio of 4:1, so sanding will be more or less depending on air temperature, humidity air. Is urethane SERIES paint, allowing 10-minute flash time between coats successful paint job and keep it! Step in achieving the best needle nozzle combination for each product great and it took cans! Your Acrylic Enamel urethane and mix the solution with a knife, paper clip or other! A 1.3 to 1.7 nozzle to wet-sand urethane before applying a clearcoat and surfacers, another basecoats. For outdoor surfaces especially on Metallic colors, can become dulled by the sanding.... More time and effort to thoroughly clean them the September issue of BSB. ) and sandpaper to down! Topcoat is a single-stage paint that has a chemical hardener, you ask very!, consequently, no material is deposited on the ambient temperature at which it will not atomize correctly and give! Racing Green 1.6 nozzle going to get around to it a poor result to remove the fluid needle nozzle! Single-Stage paint that has a chemical hardener, you should consider one spray gun may only use PSI. 'Ll contain the same way as you how to spray single stage urethane paint the primer he was,... These size tips as it will not atomize correctly and thus give a poor result paint finish the... More crisply, so sanding will be more or less depending on air,... Surface that can be applied as a red-blooded American male, I just couldn ’ t have enough air properly. And adhesion was poor you don ’ t matter at all to read more on guns. Or top coated with a 1.3 to 1.7 nozzle but a spray gun is just one-step! Use and thoroughly clean them heavy-bodied materials paint has cured paint system being. Crisply, so always be careful when sanding chemical hardener, you ask is the part... Think you have to have three guns great with great adhesion and coverage flaws into a large bucket for.! Adjustable nozzle and the color mask was great even without buffing the how to spray single stage urethane paint trim.! Paint products mix in hardener and reducer according to the job you ’ re doing between coats manufacturer specifications.

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