how to chose the airless paint spray tip size for your paint material?
Airless paint spray tips are sized using a 3 digit number such as 515. The first number has to do with the width of the spraying fan and the last 2 digits refer to the size of the hole or orifice the paint sprays through.
For instance a 508 and a 515 both have the same fan width (approx. 10″) but a different size hole. The 508 has a .008″ hole and the 515 has a .015″ hole. The 508 is used for thinner paints than the 515.
Here is a general guideline for airless paint sprayer tips as far as orifice sizes go as compared to the paint material to be sprayed.
A basic rule of thumb is to use small tip sizes (such as 0.009in, 0.011in, 0.013in) for thin / low viscosity materials such as stains & lacquers, medium tip size (such as 0.015″, 0.017″, 0.019″) for acrylic latex / enamel / emulsion / primer etc., then for heavier viscosity coatings use large orifice sizes (such as 0.021″, 0.023″, 0.025″, 0.027″ etc).
There will be some very heavy material such as putty, drywall mud, plaster, bitumen, fireproofing etc. you will need bigger airless spray gun tip nozzle over 0.031″. Correspondly you need large airless paint sprayer equipment with more than 4L per minute volume.
These recommendations are based on typical 12″ distance from surface being sprayed with an 8-12″ fan size.
|Lacquers, clear coat||0.009||–||0.011|
|Stains – transparent||0.011||–||0.013|
|Water sealers (thin, clear)||0.011||–||0.013|
|Tung Oil (pure thinned)||0.011||–||0.013|
|Oil based paints||0.013||–||0.015||medium|
|Lacquers, water borne||0.013||–||0.015|
|Acrylics 100%, latex int||0.013||–||0.015|
|Varnishes (low VOC)||0.013||–||0.015|
|Stains – solid||0.013||–||0.015|
|Enamels – oil-base||0.013||–||0.015|
|Latex paint – interior||0.015||–||0.017|
|Latex paint – exterior||0.017||–||0.019|
|Primers – latex||0.015||–||0.017|
|Primers – oil||0.017||–||0.019|
|Membrane (very heavy)||0.029||–||0.039|
|Epoxy (high solids)||0.029||–||0.039|
The following tables display several paint applications with suggested corresponding paint spray tips. These spray tip sizes are merely recommendations. Other size tips may suffice.
|Painting Applications||Spray Tips|
|Walls and Ceilings||515, 517|
|Gutters and Fascia Boards||413, 415, 515|
|Wood Siding||515, 615, 517, 617|
|Stucco Walls||515, 615, 517, 617|
|Exterior Brick||515, 615, 517, 617|
|Exterior Doors and Windows||413, 415|
|Exterior Trim||413, 415, 515|
|Elastomeric Paint||523, 623, 525, 625, 527, 627|
|Painting Applications||Tip Sizes|
|Walls and Ceilings||515, 615, 517, 617|
|Doors||310, 410, 311, 411, 412|
|Windows||210, 310, 211, 311, 212, 312|
|Trim||310, 311, 312|
|Cabinets||310, 410, 311|
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this new type of paint spray tips could generate fine atomization at 70bar pressure, which is 30% lower than the above normal paint spray tips which need minimum 100bar 1450psi pressure for atomization.
welcome to visit our page below for more details of this paint sprayer tips.
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