Question 1

What surfaces can this anti-graffiti coating be used on?

Accepted Answer

Smooth, non-absorbent surfaces: one- and two-component polyurethane or epoxy paints, polyester paints, GRP (fibreglass) and aluminium. Its main use is on the exterior of commuter and intercity trains, trams and metro trains. For absorbent surfaces such as bare concrete, brick or natural stone, contact us before use.

Question 2

How long does the coating last?

Accepted Answer

It is a permanent coating. Graffiti can be cleaned off the protected surface repeatedly without reapplying the product. How long it performs depends on the surface, exposure and how it is cleaned.

Question 3

Is the coating transparent?

Accepted Answer

Yes. It is a clear coating, and the liquid itself is colourless.

Question 4

What is the coverage?

Accepted Answer

On average 5 to 15 ml per m² (approx. 700 to 2,150 sq ft per litre). This should not be significantly exceeded.

Question 5

What tools are used to apply it?

Accepted Answer

It is supplied ready-to-use. Depending on the substrate, apply it with microfibre applicators or paint rollers (microfibre flocking). It is also suitable for spray application: HVLP compressed air, e.g. SATA minijet HVLP, working pressure approx. 2 to 3 bar, nozzles 0.8 to 1.3 mm. The spray gun can be cleaned with n-butyl acetate.

Question 6

How should the surface be prepared?

Accepted Answer

The surface must be clean, grease-free and completely dry. Dry hard-to-reach areas such as cavities and drainage channels with absorbent cloths or compressed air. On a damp surface the coating reacts too early and cannot form a permanent seal. Substrate temperature must be between 5 °C and 30 °C, with relative humidity of 30 to 80 %.

Question 7

What are the application conditions and curing times?

Accepted Answer

Apply at an ambient temperature of at least 5 °C and 30 to 80 % relative humidity, in dry conditions, out of direct sunlight and never in rain. Mistakes can be corrected within about 10 minutes. It is dry to the touch after about 1 hour and water resistant after 8 to 12 hours at room temperature (2 hours at 80 °C, 1 hour at 130 to 180 °C). It is fully effective after 5 to 7 days at room temperature. On aluminium, steel and stainless steel, curing above 80 °C is recommended for optimum adhesion.

Question 8

Who should apply it, and what safety precautions apply?

Accepted Answer

It should be applied by trained personnel only. Test on a small area first. It is a flammable liquid: keep it away from heat and open flames, work in a well-ventilated area, wear protective gloves and eye protection, and follow the MSDS.

Question 9

Can I paint over the coating?

Accepted Answer

No. About 10 minutes after application, its repellent effect makes it impossible to apply another coat over it.

Question 10

Is it suitable for outdoor use?

Accepted Answer

Yes. It has outstanding weather, UV and chemical resistance, and its main use is on the exterior of trains, trams and metro trains.

Question 11

Do I need to reapply the coating after removing graffiti?

Accepted Answer

No. The protected surface can be cleaned repeatedly without reapplying the product.

Question 12

How do I remove graffiti from a coated surface?

Accepted Answer

Remove graffiti as soon as possible. Use a graffiti remover or a cleaner in the pH range 3 to 12. Neutral cleaners are usually enough for routine cleaning. Avoid strong mineral acids and alkalis.

Question 13

What is a permanent (non-sacrificial) anti-graffiti coating?

Accepted Answer

A sacrificial coating is removed along with the graffiti and must be reapplied after each cleaning. Vetro Power Nano-Dynamis is permanent: it stays bonded to the surface, so graffiti can be cleaned off again and again.

Question 14

Is the coating fluorine-free?

Accepted Answer

Yes.

Question 15

What is the shelf life?

Accepted Answer

12 months from the delivery date, stored at 20 °C.

Density (g/ml)	0.92 g/cm3
Flash Point (°C)	16 °C
Boiling Point (°C)	125 °C
Colour	Colourless
Shelf Life	12 months from delivery date at, 20 °C

Vetro Power Nano-Dynamis Anti-Graffiti Coating

Permanent Anti-Graffiti Coating

Clear, ready-to-use polysilazane anti-graffiti coating that forms a permanent barrier on smooth, non-absorbent surfaces such as painted metal, aluminium and GRP.