Installation Sheet
- ANTI-GRAFFITI PAINT

 


Introduction

The purpose of this document is to give guidance in the use of Anti Graffiti Paint.

Anti Graffiti Paint is suitable for a wide variety of surfaces including: brick, stone, concrete, CCA treated wood and metal and can be applied directly to some bare substrates or existing coatings.

Very porous surfaces may require 3 coats.

To achieve optimum performance Anti Graffiti Paint is usually applied in 2 coats over a Non-darkening Sealer or Colour Coat.

Coverage

For Gloss or Matt:
Bare brick, concrete or stone. - depending on how porous, from 7 to 10 m2 per litre per coat (two coats recommended).

If sealed with Non Darkening Sealer first - 8 to 10 m2 per litre per coat (still two coats required).

Previously painted and other non porous surfaces - 10 to 12 m2 per litre per coat (still two coats required).

Non Darkening Sealer coverage information - this is very dependent upon porosity of substrate. - 5 to 7 m2 per litre per coat (one coat recommended).

These are very approximate figures and are supplied for guidance only.

We would always recommend that the customer works out their own coverage requirements, making a trial application if needed

A correctly applied finish has an anticipated life span of seven years.

Surface Preparation

As with any form of painting the surface to which the paint will be applied must be in a suitable condition.

The application surface must be sound, dry and clean, with any previous coating having fully cured.

Anti Graffiti Paint preserves the underlying substrate in the condition in which it is treated,
cleaning and/or re-decoration must take place before treatment.

If it it critical that there be no surface darkening, for example the walls of a listed building, a suitable Non-darkening Sealer must be applied first - contact us for advice.

APPLICATION GUIDELINES

Do not apply when ambient surface temperature is below 8°C
Do not apply when exposure to rain is likely within six hours of exterior application.
Not recommended for continuous immersion in water, e.g. swimming pools, spa baths, etc.

Drying and re coating times will be extended in cold, damp conditions.

Application is by brush roller or spray. But if spraying take care not to contaminate surrounding properties.

The product must be applied at the correct spread rate of 8 to 10m² per l to achieve the required film thickness

.Anti Graffiti Paint is a White Spirit based product and can be applied in much the same way as a conventional solvent based lacquer. However it is important to note that Anti Graffiti Paint is a Moisture curing product (see below). Only decant as much material as you can easily use in 30 to 60 mins, and replace lids immediately.

Tools - All spray equipment should be washed through with gun wash immediately
after use. Brushes and rollers used on small jobs may be washed out straight away with brush cleaner or strong thinners.

Brushes and rollers used on larger work may have to be discarded. This should be taken into account when pricing for work.

Suitable for External use only and use only in well ventilated areas.

Curing Times

Anti Graffiti paint is moisture curing, which means that the paint starts to cure when it comes into contact with atmospheric moisture.

The rate of cure will depend on the relative temperature and humidity. If the product is contaminated with water it will start to cure straight away. Once opened tins should be used that day and not stored.

Re-coat time is nominally 4-6 hours, depending on conditions. Protection against graffiti begins within several hours after application of second (or final) coat.

Full cure to a tough but flexible weather-resisting finish takes a few days on exterior surfaces.

A correctly applied finish has an anticipated life span of seven years.

Removing Graffiti

Graffiti can be removed with warm water and mild detergent, applied according to the nature and size of the surface by sponge, soft brush or (for large areas} power washing.

For Pressure Washing the machine should be set at between 700 and 900 psi. Use a fan tip of around 30° to 45°. The lance should be held at an angle to the surface and the tip kept a few inches away from it.

The heat should be set between 50 and 60 C°. Lower temperatures are less effective and higher ones can damage any previous coatings that might be under the Anti Graffiti Paint. Cold water pressure washing can be used but is much less effective, taking longer and requiring the lance to be 'worked' more.

Note - Damage can occur to the Anti Graffiti Paint and the substrate if:
* The power used is above 1000 psi.
* A turbo or pencil tip is used.
* The tip touches or gets too close to the surface.
* Too high a temperature is used.
* Areas of the substrate, such as the mortar lines, are very weak and friable.
* The anti graffiti coating is damaged or incomplete, allowing the pressure washer to get behind it and blow it off.

Note : Strong solvent cleaners should not be used with Anti Graffiti Paint as they may damage the system.

Storage and disposal

Shelf life is 1 year.

Anti Graffiti Paint should be stored according to health and safety requirement. Please store with the relevant MSDS (COSHH) with the product.

COSHH Data Link

 

 

As part of our policy of ongoing improvements, we reserve the right to modify, alter or change product specifications without giving notice. Product illustrations are representations only. All information contained in this document is provided for guidance only, and as we have no control over the installation methods of the products, or of the prevailing site conditions, no warranties expressed or implied are intended to be given as to the actual performance of the products mentioned or referred to, and no liability whatsoever will be accepted for any loss, damage or injury arising from the use of the information given of products mentioned or referred to herein.

 

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