KTX 30 is an isomorphic, single-component, translucently drying coating, which constitutes permanent protection against graffiti paints with anti-poster effect. The cured film is entirely transparent and it does not distort nor damage the visual effect of coated substrates. The preparation dries fast, and features very good adhesiveness and durability. Treated surfaces are ideally protected against aerosol graffiti paints and most commercially available markers, dirt, acid rain, alkalis, oil. It hinders permanent sticking of posters, stickers, and adhesive tapes. On its application, KTX 30 constitutes a release liner that prevents substrate penetration and its anti-adhesive properties reduces adhesiveness, often spurring the so-called 'beading' effect in liquid substances/pigments. Surfaces protected with KTX 30, owing to its anti-static properties, remain clean for a long time, which positively limits the costs of cleaning and maintenance, and thus extending service intervals for such surfaces. Protected glass pane claddings exposed to atmospheric conditions facilitate rainwater and snow run-off, thus improving visibility in adverse conditions.
KTX 30 features preservative properties and UV filters, owing to which it preserves the colour of protected substrates, and in the case of old, damaged, dull and oxidized surfaces the coating restores their natural look. The preparation is available in two variants: KTX 30, time to make corrections: approx. 5 minutes. KTX 30 long, time to make corrections: approx. 20 minutes.
KTX 30 anti-graffiti coating features: NATIONAL TECHNICAL APPROVAL, No. IBDiM-KOT-2020/0551.
Technical data after application
Appearance on surface: transparent coating with gloss.
Coating durability: at least 10 years. Graffiti removal: up to 50 cycles. Dry coating thickness: approx. 2–5 μm. Full anti-graffiti protection: after 24 hours. Full curing: after 7 days. The preparation also features anti-corrosive, water-repelling, anti-adhesive and anti-poster properties with high durability and resistance to adverse external factors: thermal, biological or chemical, UV radiation, alkali, corrosion, salt and ammonia solutions, and the majority of solvents. KTX 30 is a durable system facilitating multiple removals of graffiti paints, without the need for coating restoration after graffiti removal.
Areas of Application
KTX 30 is suitable for use on smooth, non-absorptive substrates, for example: varnish coatings, powder paint coatings, polyurethane coatings, epoxy coatings, industrial paint coatings; plastics, e.g., polystyrene, ABS, polycarbonates, acrylic glass (plexiglass, poly(methyl methacrylate); glass, steel, zinc plated substrates, aluminium, as well as natural stone, such as polished granite. It is applicable on interior and exterior surfaces of trams, buses, train cars, as well as ticket vending machines, parking meters and lighting poles. Due to its outstanding translucency properties, it is especially recommended for protection of acoustic screens made of polycarbonates, acrylic glass and the like.
After opening the container the preparation is ready for use. Before use, do not stir nor shaken the container due to a possibility of and excessive pressure build-up. After pouring the desired amount of the preparation (through a varnish strainer of approx. 125 μm) close the container to prevent impact of humidity and evaporation of the preparation. Apply small portions of the preparation at a time. Do not pour the unused preparation back to the original packaging. The preparation shall be applied in a single thin layer. If too thick a layer is applied, dried coating is susceptible to cracking.
Coating application: +5°C - +30°C.
Optimum application temperature: +15°C - +20°C.
Relative air humidity: up to 70%.
Du to the preparation's evaporation and drying rate, any corrections should be executed immediately.
Anti-adhesive properties of the coating render it impossible to apply second layer. Mean coating correction time after application on a substrate at the temp. 22°C is: KTX 30: approx. 5 minutes. KTX 30 long: approx. 20 minutes. The coating is touch dry at 22°C after: KTX 30: approx. 15 minutes. KTX 30 long: approx. 40 minutes.
During this time make sure no impurities, as well as no water, come in contact with the coating. After approx. 12 hours of drying at 22°C the coating is cured to form the so-called resistance to weather conditions.
Initial anti-graffiti protection properties the coating features after 24 hours; full mechanical, chemical, and anti-graffiti properties are obtained after 7 days at 22°C — during this period, the coating should not be forcibly wiped/scrubbed. The proper temperature range must be maintained throughout the coating curing time; avoid direct sunlight and humidity. Humidity accelerates cross-linking of the coating and affects its quality and tightness. When the anti-graffiti coating is cured, it is impossible to permanently apply another layer of the preparation. The coating should be applied precisely, so that the treated surface is entirely covered with a film of liquid and a homogeneous layer is created.
Failure to do apply the preparation precisely may limit the effectiveness of the anti-graffiti protection.
Make sure that no excessive coating should be applied; mean spread rate (coverage) is approx. 12 ml/m² and it should not be excessively exceeded.
If the anti-graffiti coating is applied on newly paint coated substrates, maintain sufficient break time for curing of the paint coating, following Technical Data Sheet of a paint coating system. The coating may be applied outdoors and indoors with proper ventilation. Pay special attention to potential sources of fire. Wind spreads vapours over significant distances. Application means:
Spraying: the product is applied by means of a pneumatic low pressure (HVLP) spray gun with a 0.7 - 1.3 mm nozzle, under the pressure of 2 - 3 bar.
Manual: microfibre cloth, window-glass washing pads or lint-free, absorptive fabrics.
It is best to wrap the fabric part of the window-glass washing pads with a microfibre cloth.
Select suitable application equipment to the size and shape of the treated surface. Apply the coating directly onto a microfibre cloth, and not onto the treated substrate. Replace microfibre when it is dirty.
Use the preparation as concentrate. Do not mix it with any other liquids.
The basic principle is to apply 1 layer of full/tight coating.
The coating thickness of approx. 2 μm or more provides for sufficient protection.
The preparation is extremely economical in use.
Theoretical spread rate (coverage): 66 m²/l(15 ml/m²) up to111 m²/l (9 ml/m²)
Theoretical spread rate (coverage) is an approximate value defining the extreme consumption figures, which differ depending on the type of the protected substrate.
Practical spread rate (coverage): depends on conditions during application, methods of application and preparation application losses.
Examples of applicators for applying the coating antigraffiti KTX 30
Example applications of KTX 30 anti-graffiti coating:
The Technical Approval required numerous tests of KTX 30, conducted in accordance with the following standards:
PN-EN 1062-3:2008 Paints and varnishes – Coating materials and coating systems for exterior masonry and concrete – Part 3: Determination of liquid water permeability.
PN-EN 1542:2000 Products and systems for the protection and repair of concrete structures – Test methods – Measurement of bond strength by pull-off.
PN-EN 1767:2008 Products and systems for the protection and repair of concrete structures – Test methods – Infrared analysis.
PN-EN ISO 2811-1:2012 Paints and varnishes – Determination of density – Part 1: Pycnometer method.
PN-EN ISO 3219:2000 Plastics – Polymers/resins in the liquid state or as emulsions or dispersions – Determination of viscosity using a rotational viscometer with defined shear rate.
PN-EN ISO 3251:2008 Paints, varnishes and plastics – Determination of non-volatile-matter content.
PN-EN ISO 7783-2:2001 Paints and varnishes – Coating materials and coating systems for exterior masonry and concrete – Part 2: Determination and classification of water-vapour transmission rate (permeability).
PN-EN ISO 7783:2012 Paints and varnishes – Determination of water-vapour transmission properties – Cup method.
PN-EN ISO 9001:2009 Quality management systems – Requirements.
PN-EN ISO 9001:2009/AC:2009 Quality management systems – Requirements.
ASTM D6578 Standard Practice for Determination of Graffiti Resistance.
The following test procedure were used in the approval process:
Test procedure of the Road and Bridge Research Institute: PB/TM-1/13 Assessment of protective coating (or lining) condition after freeze resistance testing.
The following reports of construction product tests were used in the approval procedure:
Tests by the Road and Bridge Research Institute, Report of the Road and Bridge Research Institute No. TM4/32/2014.