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FAQs: Spraying


What are the advantages of spraying compared to application by brush?

  • High-quality surface finish
  • Even paint application and coverage at corners and edges
  • Faster paint application

How to prepare in order to get the best possible spraying results?

  • First of all, you need to check how stable the surface of the area you want to paint is. To do this, press a piece of adhesive tape on firmly and then tear it off. If there is any residue on the strip of tape, you must treat the surface with a undercoat before applying the main paint. The same applies if residue remains on your hand when you rub it over the surface.
  • Objects must be clean. Remove any dirt, dust, oil, water etc.
  • Before starting work, perform a spray test. To do this, use a piece of cardboard or a spray target. This allows you to test the various spray settings and the paint volume adjustment.
  • Before starting work, stir the paint and dilute it if necessary.
  • Even though you are spraying, it is important to follow the paint manufacturer's instructions regarding the necessary layers.

What is the optimum distance when spraying?

The distance to the object should be 10-20 cm.

What can I do if the paint does not cover a surface properly?

In this case, apply a cross-coat. This means, spraying the paint first vertically and then horizontally.

What tips and tricks are there for achieving a perfect spray finish?

Always work away from the light. Start with the ceiling. Then do the window recesses and the corners of the area that you want to spray. Next paint the area with a paint jet adjusted to suit your preferred working direction. We recommend spraying in a vertical spray direction. To do this, move the spray gun at an even speed keeping a uniform distance of approximately 15-20 centimetres from the surface. Make sure that the spray overlap the previous spray slightly in order to achieve uniform paint coverage. This can also be achieved by "cross-coat" spraying in which the paint is first applied vertically and then horizontally.

What are the advantages of spraying enamels and varnishes on objects that are exposed to the weather?

As the ILF (Forschungs- und Entwicklungsgesellschaft mbH) research and development institute in Magdeburg has reported, the very first spray application creates a sealed, uniform paint coat that achieves full weatherproofing. Additionally, areas that are difficult to reach with a brush - such as cracks, corners or the weave of wicker chairs - are easily within the reach of a spray jet.

How should I go about painting?

  • Remove old, loose paint with a scraper and abrasive paper and fill in any holes with a suitable filler. Remove any dirt and fungus from any old paint. Then evenly sand the surface with a fine abrasive paper.
  • Always apply several coats of the material (see the manufacturer's instructions). The material must be suitable for use with the surface/old paint. Prime untreated wood or plastics with a protective coat to improve adhesion and metal with a rustproofing product.
  • The "PerfectSpray" spraying attachment is suitable for the application of primers, enamels and varnishes. At the start of spraying, set the material volume to low and increase if necessary depending on your working speed. Spray as thinly as possible to avoid "streaks" and reduce drying times.
  • Start spraying in front of the object and carry on spraying beyond it. Keep a distance of 10-15 centimetres from the object and work at a uniform speed. Treat the non-visible parts of chairs, tables, hinged shutter etc. first, then move onto the legs, side and edges and finish with the most prominent sides.

What do I use the yellow stirrer that's included in the packing for?

The stirrer is useful when you want to thin and stir the paint. It couldn't be easier to use. You lower the stirrer down onto the base of the filled paint tank. The distance between the notches represents a dilution of 10%. Now just add the water and stir. You can also use the tip to remove dried-on paint from the nozzle.

How much work does it take to maintain a spraying unit?

Cleaning at the end is very quick because only the spraying attachment comes into contact with the paint. In the case of water-based paints and emulsions, all you have to do is rinse through the tank and nozzle with water. In the case of solvent-based enamels, you must use the corresponding solvents which must then be disposed of properly.

Which spraying attachments can I use with my unit?

  • W 550, W 560, W 610:
    "Brilliant" spraying attachment, "Small volume" spraying attachment, "Radiator detail" spraying attachment, Perfect Spray 800 spraying attachment, Perfect Spray 1400 spraying attachment
  • W 625, W 670, FLEXiO 580 and 585, W 665, W 687 E, W 867 E as well as W 925 E, W 985 E with adapter:
    "Brilliant" spraying attachment, "Small volume" spraying attachment, "Radiator detail" spraying attachment, Perfect Spray 800 spraying attachment, Perfect Spray 1400 spraying attachment, WallPerfect I-Spray spraying attachment

What spraying attachments are there and what can I use them for?

Brilliant spraying attachment for very demanding surfaces

  • Small volume spraying attachment for small, intricate objects and detailed work
  • Radiator detail spraying attachment for difficult-to-access places such as heaters and cabinet corners

lacquers and varnishes

  • PerfectSpray 800 spraying attachment for flawless, even paint application to small and medium-sized objects
  • PerfectSpray 1400 spraying attachment for large objects such as garage doors and summer houses
  • WallPerfect I-Spray spraying attachment for internal wall paints (emulsions, latex paints)

Wall paint

  • Handle extension for all spray units equipped with Click & Paint
  • Another tip: With the Click & Paint system, you can change spraying attachment quickly and easily.

You can purchase accessories individually from building supplies and DIY stores or directly from WAGNER.

How often do I have to inject oil in the piston of the ProjectPro?

The oil helps preserve the unit and lubricates the piston during its fast, frequent up-and-down movements. To ensured the unit is protected at all times, the piston should be oiled whenever the unit is not being used for an extended period (several days).

My Airless machine has lost pressure - is that covered by the guarantee?

Normally this is not covered by the guarantee. If there is a loss of pressure or if the material cannot be drawn in any more, this is usually due to worn parts. These are not covered by the guarantee but can be purchased as repair sets. If this does not solve the problem then the unit must be sent to a WAGNER service point for more detailed analysis.

What nozzles can I use with the P 115 / PP 117 / PP 119 / PP 60?

In the consumer range of Airless units, the number indicates the maximum size of nozzle that can be used. For example, P 117 means that you can use a 17" nozzle to spray material with the unit.

In most cases, each unit has its own repair set which contains the most important parts for servicing. In addition, there are filters, nozzles and other separate wear parts such as O-rings and seals.

I am a professional painter. Can I use a PP 119 and for what?

The two larger ProjectPro models – i.e. the 117 and 119 – are available in two different versions. There is a standard version which is only for the consumer market and intended for DIY use. The guarantee does not cover this unit for commercial use. There are also the semi-professional ProjectPro 117 and ProjectPro 119 units. These units are equipped with higher quality guns and accessories and are intended for use in small commercial businesses. However, it is important to stress that all the spare and wear parts for the Project units have a considerably shorter service life than the comparable parts in the professional range.

I have a P 115 but the paint jet "draws" a line while spraying. Why?

This problem is described in the operating Instructions and shown in a diagram. This type of line effect is visible on the finished surface if the pressure at the unit is too low, the nozzle is too large or the material is too thin. You can avoid this problem by rectifying one or all of these factors.

Why is it not possible to spray façade paints using the PP?

There are two reasons why façade paints cannot be sprayed. From the technical point of view, façade paints contain a higher proportion of silicates, have a denser consistency and contain coarser components. The motors of the Project devices are too weak and the maximum permitted nozzle sizes too small to cope with these characteristics.
Another important reason why façade paints cannot be sprayed is to protect nearby objects. To protect adjoining property owners, German law even prohibits outdoor paint spraying. WAGNER also explicitly stresses that no liability will be accepted in the event of damage.

Can I use the WallPerfect to spray lime paints such as Baumit's Feinkalk?

No (see question on façade paints). Lime paints contain so-called silicates which are extremely corrosive components. Used at high pressure or with high air volumes, these materials wear down the required seals and valves in the units so severely that the parts fail before they should.

My W 665 / W 985 pulsates while spraying. How can I prevent this?

A pulsating spray jet indicates that the paint or material you are spraying has been over-diluted. To prevent these pulsations, you must thin your material less or attach a different attachment with a smaller nozzle size (optional accessory).

I have only used my W 95 once and the machine is now making a different noise.

If the W 95 makes a buzzing noise then the piston is probably sticking or jammed. You can solve the problem by striking the top of the piston gently. The piston will come loose and the unit will work normally again.

What does the Perfect Spray logo mean?

The Perfect Spray logo is a quality seal that stands for simple, fast, clean paint application for a perfect finish as a result of spraying with our nozzle technology. The logo also helps you find the right paints and varnishes for your spray jobs. Materials manufacturers provide paints specially designed for spray applications that do not have to be thinned. The red logo refers to enamels and varnishes and the green logo to wall paints.

What is the Click & Paint system?

With the "Click & Paint" system, you can change the spraying attachment quickly and easily when you switch paint or material. As a result, you can also use different spraying attachments for your individual projects, irrespective of whether you want to work with wall paints or enamels and varnishes.

What device settings are there on my HVLP unit?

1. Spray jet adjustment

The spray jet of the WallPerfect spray attachment for wall paints can be adjusted to be either horizontal or vertical. The spray attachments for wood and metal paints can also be adjusted to provide a round jet.


2. Paint volume adjustment:

Adjust the paint volume by rotating the regulator and the gun trigger.

  • For less paint - rotate anticlockwise(-)
  • For more paint - rotate clockwise (+)

3. Air volume adjustment (for the units FLEXiO 580/585, FLEXiO 867, FLEXiO 995):

It may be beneficial to modify the volume of air depending on the viscosity (thickness) of the spraying material and the characteristics of the object that is to be sprayed. Very low-viscosity materials (such as diluted varnishes, for example) do not have to be atomised using the maximum air volume. In such cases, it is advisable to reduce the air volume and minimise the spray mist. This also applies when using the small-volume and radiator/detail spray attachments (accessories).

 

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