Frequently Asked Questions

What substrates can W-A-G be applied direct to?
Clean sound unpainted concrete, brick and concrete block.
What surfaces require priming first?
Prepared Colourbond, Aluminium, Timber and previously painted surfaces such as Acrylics, catalyses acrylic, Alkyds, Epoxies and Powder Coatings.
Are there any surfaces that cannot be coated?
Yes, at this stage of development they are Stainless Steel And Polyurethane. However our applicator will check the surface for feasibility.
Once W-A-G Finish is applied how do we change the colour scheme of our building?
W-A-G Finish would normally be applied in a section from ground level to 2.5-3.0 metres high and in any other public access areas. The majority of a building's surface area can not be coated with W-A-G Finish, and changing a colour scheme would not pose any problem. W-A-G Finish can be removed from the surface using higher-pressure water washing, than that used to remove graffiti.
What is the recommended water pressure for the removal of graffiti?
Low-pressure water between 1000-1500psi to effectively remove graffiti. However, most graffiti can be removed within 48 hours using a wet rag.
Are chemical additives/detergents required when washing?
No, W-A-G Finish is a true environmentally friendly coating and does not require detergents, chemical or abrasives or the use of other additives to help remove the graffiti.
Does W-A-G require hot water to remove graffiti?
No - Unlike some anti-graffiti coatings, W-A-G does not require hot water, making graffiti removal easier, quicker, safer and more cost effective.
Is it necessary to reapply W-A-G Finish after each graffiti removal episode?
No, W-A-G Finish is a non-sacrificial coating formulated to resist multiple graffiti removal episodes.
How many times can graffiti be removed before W-A-G Finish must be reinstated?
Providing the coating does not sustain physical damage, it will not require reinstatement. It has been found that where W-A-G has been vandalised on unpainted brick and concrete, there has been enough residual coating remaining within the substrate to prevent further graffiti adhering.
How long will W-A-G perform when exposed to sunlight?
Being essentially inorganic, W-A-G is not effected by sunlight. Accelerated exposure testing indicates that the performance of W-A-G exceeds all current polyurethane technology.
Is there a repair procedure in case W-A-G Finish receives mechanical damage?
W-A-G Finish is fully recoatable with itself. The repair area should be treated using normal pre-treatment procedures before reinstating the W-A-G Finish as a spot repair.
Can W-A-G Finish be overcoated?
W-A-G Finish can be overcoated with itself
What is the minimum time required for freshly applied W-A-G Finish to become resistant to graffiti?
This is dependent on environmental factors. At 50% RH and 25°C approximately 6 hours.
During graffiti removal by water washing, what chemicals are released?
None. W-A-G Finish is non-toxic and environmentally friendly. The only "by products" are water and the graffiti itself.
What is the minimum recoat time for the Primer before W-A-G Finish can be applied?
16 Hours @ 25°C.
What happens if the primer sustains graffiti damage before W-A-G Finish can be applied?
W-A-G Primer has excellent graffiti release properties. Most graffiti can be washed off using the same removal procedures as W-A-G Finish.
These products contain silicone. Can these cause contamination problems?
There are many different types of silicones. Almost all paint coatings contain silicone in one form or another. W-A-G for example can be applied inside a spray booth without detrimental effect to the application of any other coating, once dry.
Are there special procedures required for cleaning of application equipment?
No. Treat the cleaning of W-A-G Finish like a normal solvent-containing coating.
Can W-A-G be applied directly to mild steel?
For mild steel - a suitable anti-corrosion system is required prior to applying W-A-G Primer and Finish.
Does W-A-G offer any other protection to the substrate other than for graffiti?
Being a non-sacrificial coating and abrasion resistant, it provides a permanent membrane against graffiti attack and protects the substrate from environmental wear and degradation.
Can W-A-G be applied directly to galvanised steel?
This application is currently under investigation.
Is W-A-G an environmentally safe product?
Yes. It is one of the safest. None of the W-A-G coating is removed with the graffiti and no flammable solvents are used. Only low-pressure water is needed to remove graffiti.
Why is W-A-G an effective coating against graffiti?
W-A-G employs dehesive technology, not unlike that used on the paper backing for self-sticking labels. The coating is hydrophobic and soft; it deforms under water pressure and destabilises the graffiti, allowing it to be easily washed off.