Airless sprayer used
Lee chose the WAGNER SuperFinish 33 Plus because of the size of the project and the height of the ceilings. This airless paint sprayer can process a diverse range of materials with a delivery rate of up to 4.3 litres per minute. The SF 33 Plus is the most powerful WAGNER diaphragm pump in the professional range of products. An adapter is available for this machine which allows up to three airless guns to be connected to it.
Lee said, “With such a large surface to cover and all the ornate details, spraying was the only way to tackle a job like this. He used two TempSpray heated hosesfrom the one machine as the optimum setup allowing two people to be spraying simultaneously and a third person preparing materials and loading them into the machine. The two-hose setup gave a working radius of up to 60 meters, meaning the machine hardly needed to be moved even on a vast jobsite like this.
The perfect accessory
The TempSpray heated hose has an electric heating element, located directly in the flow of paint inside the hose system which heats the material over the entire length of the hose to the pre-set temperature. This gives complete flexibility to heat the material from 20° to 60°C depending on what is being sprayed. To make coating materials sprayable they usually have to be diluted. Heating the material with a TempSpray heated hose virtually eliminates the need to dilute by reducing the viscosity and spray pressure whilst improving the material application. The result is a soft spray pattern and optimised atomisation quality and minimum overspray.
Lee commented, “on a job like this you need to achieve the best surface quality. Heating the material allows thicker products to be applied whilst reducing overspray. This is hugely important when working in a building with such historical significance and valuable artifacts.
Reliable and efficient
Speed of application is a key factor for choosing spraying as the application method.
Lee concluded, “To put it into perspective, the whole domed ceiling area of the church could be coated in around four hours. That is with three men working on site and the time includes machine setup and cleaning. If we were using traditional brushes and rollers it would have taken many days. On a job like this the equipment used needs to be 100% reliable, there is no time to be wasted as it is such a massive project you need machines you can depend on. Now that the work is completed the client is delighted with the results”
