How To Clean Oil Paint From An Airless Sprayer
Airless Spray Guns for Roof Painting
AIRLESS SPRAY GUNS FOR SPRAYING ROOFS
Table of Contents
ROOF TYPES TO SPRAY
- Metal Roof
- Tile Roof
- Concrete Roof
PAINT TYPES
- Oil based
- Acrylics
- Elastomerics
- Two Pack
MAJOR BRANDS FOR ROOF Pigment
- Dulux – AcraTex
- NuTech – Aquaguard
- NXT – Absurd Zone
CHOOSING THE BEST SPRAY PAINTER
- QTech
- TRITECH
Modernistic roof cladding is normally built to last but poor maintenance tin can come across any roof material quickly dethrone.
Recoating the roof is an platonic way to restore your roof's stunning appearance, maintain its h2o proofing and effectiveness, and prevent roof degradation. And an airless spray gun is the perfect tool for roof painting projects of any type or size.
Airless spray guns piece of work beautifully with all roof type claddings including:
- Metal
- Tile
- Concrete
Many mutual roof coatings are quite heavy with a high viscosity and require a high force per unit area for correct application.
This is where airless sprayers provide exceptional performance and toll effectiveness. Yes, you may be able to do it with a roller simply information technology will accept a keen deal longer and the results may non be as pleasing or durable.
If you need to repaint or glaze your roof and then you lot need to do your homework.
The type of cladding and the cloth you intend to spray will aid determine which is the ideal sprayer equipment to use.
And then, let's take a await at some common roof cladding types and blanket materials and get some ideas on how to choose the best spray equipment for the job.
METAL ROOFS
The term metal roof actually covers a broad range of cladding materials.
You lot may be talking about unpainted galvanised steel panels such equally standard 'corrugated iron' or your roof may have precoated Colorbond type cladding.
Metal tiles are some other metal cladding that is popular on Australian homes.
There are other metallic claddings too such as aluminium, stainless steel, or copper. But you should never need to spray either stainless steel or copper claddings.
Regardless of the cladding type, grooming of the roof before painting is essential for skilful results. And if the roof has been painted earlier this will also influence your choice of coating blazon.
Common coatings for metal roofs include:
- Oil-based coatings
- Acrylic coatings
- Elastomerics
Oil-based coatings have been around for a long time. They bond tightly to metal, offer rust protection, and preclude rust bleed.
Their disadvantages include; tiresome drying time, relative lack of colourfastness, and they may become breakable with age.
Oil- based coatings are usually recommended where a surface has been painted with oil-based paints earlier.
Water-based acrylic coatings are a newer product. They are usually more durable and offer better colourfastness and adhesion, faster drying times, and are generally more flexible on metal surfaces than oil-based paints.
Of course, one of the disadvantages of a rapid drying time is that you must be especially careful to avoid painting on hot surfaces as this may crusade lapping marks and other quality bug.
Acrylics are particularly recommended for metallic cladding types that do not bail well with oil-based coatings.
Such coatings include galvanised metal and aluminium. Acrylics are also one of the few coatings that may piece of work well when painting former asphalt coated surfaces.
Elastomerics are a specialised roofing product that form a thick rubbery membrane when dry out.
Elastomerics are made from a blend of acrylic and elastomeric resins. They are much thicker than acrylics simply offer boggling heat reflection backdrop.
Coating thickness and an even, consistent coverage are critical for a high quality end with any roof coating.
Airless sprayers provide an exceptional degree of control over paint delivery. This means yous can get a better more durable terminate and significant cost savings thank you to the more efficient use of your paint.
Information technology's a adept idea to avoid painting metal roofs when the roof surface temperature (non air temperature) exceeds 30 degrees Celsius.
If the roof gets too hot it can forbid the paint bonding properly with the metal. Quality problems may also occur when the roof surface falls beneath nigh 10 degrees Celsius.
TILE ROOFS
Metallic, cement, terracotta and ceramic tiles tin be painted. This is usually done where the original glaze has worn or excessive mould or lichen growth off has caused discolouration of the tile roof.
Tiles will generally retain their waterproof qualities unless they are cracked or damaged only airless spray equipment makes painting really quick and easy. The result is a beautifully revitalised roof.
Acrylic paints are perfect for tile roofs but equally with whatsoever painting project y'all demand to make certain you prepare the surface properly; cleaning moss, removing flaky, loose paint, and repairing or replacing whatsoever damaged tiles and pointing.
It's of import to ensure that you apply a consistent thickness of coating to any tile roof.
Airless sprayers and high-pressure guns are ideal for ensuring a rapid application with acceptable coverage and depth to all tile surfaces.
The even pressurised spray ensures that all tile surfaces, including tile fronts, receive good coverage.
As with any airless spraying you need to check the paint manufacturer's instructions for ideal tip size. This guarantees that you lot won't go excessive overspray and will brand the job faster and more toll effective.
Concrete ROOFS
Airless sprayers are perfect for spraying concrete covering surfaces.
The pressurised spray fan ensures a solid fifty-fifty coverage and that any pores in the physical are sealed. Acrylic paints designed for terracotta tiles are usually perfectly acceptable for concrete tiles likewise.
PAINT TYPES
Most major Australian paint manufacturers produce high quality paints and primers for a broad variety of surface types.
Look out for brands such every bit Dulux, Nutech, Resene, Superior Hullo-Tech, Taubmans, Solacoat and ShieldCoat.
When looking for a premium quality paint make sure it meets the colour durability requirements required for APAS 0280 – Australian Paint Approvals Scheme. Inferior paints that don't encounter this standard are decumbent to color fading and other quality issues. If rainwater is being harvested for drinking bank check the paint used is safe for potable h2o.
Oil based coatings are on the style out for most covering applications especially if you are painting previously unpainted surface.
However, they still take their uses if y'all are recoating a surface that has been previously painted with an oil-based paint.
Acrylics are platonic for near roofing types including tile, metal, and concrete.
Acrylics more often than not deliver excellent adhesion, durability, colour fastness, and rapid application. Acrylics likewise tend to be relatively easy to make clean upward and are rated depression VOC.
Elastomerics are specialist covering coatings that dry out to course a thick rubbery membrane. Elastomerics offer exceptional weatherproofing and thermal insulation qualities.
Loftier pressure airless sprayers are the perfect partner for the highly viscid nature of these coatings.
Two pack top coats (epoxy acrylic, or acrylic polyurethane) are highly viscous coatings that provide industrial strength anti corrosion and weathering protection.
These are often used in large scale commercial applications close to the declension. They practice require big tips sizes and high pressure spraying equipment.
MAJOR BRANDS
Here are some of the offerings from two of the major paint manufacturers.
Their ranges also include primers suitable for both clean surfaces and desperately damaged surfaces such as heavily oxidised metal or highly porous concrete.
DULUX
AcraTex is a range of acrylic membrane coatings that are ideal for concrete, terracotta tile and metallic roofs.
Cool applied science provides optimal thermal efficiencies and advanced cross polymer linking ensures this is 1 super tough coating. The AcraTex range also includes elastomeric summit coats for masonry.
NuTECH
NXT Aquaguard is a waterproof membrane ideal for concrete and terracotta tiles, metal roofs and cobblestone cladding.
It's available in a rich assortment of 46 colours and is resistant to salt, fungi and algae attack. It's estrus reflective and low VOC. Due to its thick elastomeric makeup yous'll need to use a big tip size (twenty to 30 thousandths).
NXT Cool Zone is ideal for metal and tile roofs and delivers real thermal insulation efficiency due to the infrared reflective pigments. This coating is highly resistant to chemicals, UV low-cal and oestrus.
Information technology is imperative that you follow the paint manufacturer's recommendations for paint training, thinning and for choosing the advisable tip size for spraying.
Choosing the Right Spray Painting Equipment
Airless sprayers that tin deliver relatively a high pigment menstruum per minute through a wider tip size and under pressure are ideal for all roof painting projects.
This is because of iii factors:
- Rapid application is of import on external surfaces that heat up quickly under the dominicus
- Many roof coatings are highly viscous and require a very consequent thick cover
- Wider, more generous paint coverage across large roof areas minimises costly overruns
Ideally, you'll want a minimum working pressure of at least 2,000 PSI and a paint flow of up to 5 litres per minute.
We supply a range of QTech and TriTech sprayers, guns, and tips that are the ideal partners for all roof coating applications.
QTECH AIRLESS SPRAY PAINTERS
QTech QT290 Airless Sprayer
The QTech QT290 is a swell choice for common medium-viscosity water or solvent based coatings and roof membrane spraying.
Specifications:
- Menses per minute: 2.9 ltrs/min
- Max tip size: 0.027″
- Maximum working pressure: 227 Bar | 3300 psi
- Motor: 1300 Watt
- Weight: 33kg
- Power supply: Unmarried phase electric 240V
- Max Hose Length: Upwardly to lx metres with 523 spray tip
QTech QT550 Airless Sprayer
The QTech QT550 is a great selection for common loftier-viscosity water or solvent based coatings and roof membrane spraying.
Specifications:
- Period per minute: 5.five ltrs/min
- Max tip size: 0.031″
- Maximum working pressure: 227 Bar | 3300 psi
- Motor: 1500 Watt
- Weight: 59kg
- Power supply: Unmarried phase electrical 240V
- Max Hose Length: Up to 90 metres with 527 spray tip
QTech QT650 Airless Sprayer
The QTech QT650 is designed for spraying emulsions, acme coats, intumescent, and common high-viscosity water or solvent based coatings.
Specifications:
- Flow per minute: 6.5 ltrs/min
- Max tip size: 0.037″
- Maximum working force per unit area: 227 Bar | 3300 psi
- Motor: 1800 Watt DC brushless
- Weight: 61kg
- Power supply: 240V
- Max Hose Length: Up to xc metres with 531 spray tip
TRITECH AIRLESS SPRAY PAINTERS
T7 (Stand & Cart)
TriTech T7 is ideal for all roof projects using almost common medium-viscosity water or solvent based coatings.
Specifications:
- Menstruum per minute: 2.91 ltrs/min
- Max tip size: 0.027″
- Maximum working pressure: 227 Bar | 3300 psi
- Motor: 1195 Watt
- Weight: 34.9kg
- Power supply: Single phase electrical 240V
T9 (Hello Cart)
TriTech T9 is ideal for all roof projects using most common loftier-viscosity water or solvent based coatings.
Specifications:
- Period per minute: 3.97 ltrs/min
- Max tip size: 0.031″
- Maximum working force per unit area: 227 Bar | 3300 psi
- Motor: 1565 Watt
- Weight: 44kg
- Power supply: Single phase electric 240V
AIRLESS SPRAY GUNS
The TriTech T360 and its bigger brother the TriTech T380 are superb all-round guns ideal for covering coatings.
Specifications:
- T360— maximum working pressure of 250 bar / 3625 psi
- T380– maximum working pressure of 260 bar / 3800 psi
They are compatible with all leading brands of airless sprayers. And you'll dear the lightweight, beautifully balanced handle and trigger.
Choosing the Right Spray Tips
It's critical to cull the right tip size for whatever painting project. Follow the paint manufacturer's recommendations.
You can learn more about choosing tips sizes here but for most acrylic coatings yous'll probably be looking at a tip size of around 012 to 014 whereas thicker materials such as elastomeric will require tips between 025 and 039.
Getting it Right
Painting a roof is a serious investment in time and money so it's worth doing properly the beginning time.
We're here to help brand sure you get the right equipment and the right advice for the perfect finish every time.
View Q-Tech & TriTech Airless Sprayers
Source: https://www.paintspraytools.com.au/airless-spray-gun-roof-painting/
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