and road markings Green Public Procurement environment.gov.mt - - PowerPoint PPT Presentation

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GPP criteria for paints, varnishes and road markings

Green Public Procurement

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Paints and varnishes

Analysis of the sector

• The 1st NAP already addressed to some extent paints in the

construction criteria

• These were very limited in their scope and non- mandatory
• The Commission has decided to revise and launch a set of criteria

specifically for paints

• The criteria mainly address paint formulation and efficiency of

application and durability

Key environmental impacts

• The key impacts are associated with their production.
• In terms of paint ingredients solvents, binders and TiO2 manufacture

have an important environmental impact

• Solvent-based paints have a higher impact than water-based paints

Paints and varnishes include:

• Indoor and outdoor paint
• Woodstains and related products
• Floor paints
• Tinting systems
• Decorative paints in liquid or paste formulas
• Products which are tinted by distributors at the request of

professional decorators

• 1. White pigment content
• 2. Content of VOCs
• 3. Product hazard labelling
• 4. Hazardous ingredients

Paint formulation

White pigment content

• Reduction in the use of pigment in paints, particularly titanium

dioxide, is desirable because it is a major contributor to the paint’s environmental impact

• EU’s technical background report has shown that the amount of TiO2

in paint in Southern Europe is considerably higher.

• 38 and 40 g/m2, for indoor and outdoor paints
• For undercoats and primers equal to or lower than 25 g/m2

Content of VOCs

• VOCs used as solvents to help keep the mixture stable prior use
• Negative effect with regards to global warming, fauna and flora

degradation, short- and long-term adverse health effects

• Tenderers are to offer only paints with reduced amount of VOCs in

the formulation. Since public awareness on this aspect is high, paint industry has been working towards the reduction of VOCs.

Product hazard labelling

• Safety net to ensure that CAs do not purchase products which are

classified as hazardous to human health or the environment in accordance with the CLP Regulation (1272/2008)

• 1. Acutely toxic
• 2. A specific target organ toxicant
• 3. Carcinogenic, mutagenic or toxic for reproduction
• 4. Hazardous to the environment

• Paint contains a wide range of

compounds, many of which have hazardous properties and can have harmful effects

• The GPP criteria propose

restrictions on:

Hazardous ingredients

• 1. Spreading rate
• 2. Weathering resistance
• 3. Fungal and algal resistance
• 4. Abrasion resistance of floor

paints

• 5. Packaging

Efficiency of application and durability

Spreading rate

• A key environmental consideration is the amount of paint used
• Minimising the amount of paint used, whilst achieving a high quality

finish can result in environmental savings. The most appropriate criterion by which this can be monitored is through the paints spreading rate.

• The same requirements as in the EU Ecolabel are asked for in the GPP

criteria.

• Exterior surfaces are often

exposed to various conditions, which contribute to weathering. Changes in temperatures, exposure to sun and rainfall are the main factors.

• This applies to masonry, wood

and metal paints.

Weathering resistance

• Microorganisms can grow in

liquid paints prior to and after the application. Manufacturers, in order to prevent this growth use biocides.

• Setting a requirement regarding

fungal and algal resistance is considered important to ensure the quality and durability of the painted surfaces.

Fungal and algal resistance

Abrasion resistance of floor paints

• Abrasion resistance can be defined as the ability of a material to

withstand mechanical activity, which progressively removes the material from the surface.

• The better the abrasion resistance, the less frequent the need to

repaint the surface.

• Floor coatings and floor paints shall demonstrate an abrasion

resistance not exceeding 70 mg weight loss after 1000 test cycles

Packaging

• The reduction in packaging of the paint has a significant

environmental impact and shall be strived for.

• In order to minimise environmental impacts related to paint

packaging, it is proposed to require that points are awarded for the tenderers that will minimise packaging waste per volume of paint

• supplied. It is envisaged that the best performance will be achieved

by using larger containers.

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Road markings

Key environmental impacts

• Glass beads added to the paint have significant impacts associated

with their manufacturing, primarily related with the energy used to form the beads

• Durability of road marking under traffic wear also has a significant

influence on the overall environmental impact.

• The key environmental impacts associated with road markings are

related to their use phase rather than to their production

Definition:

• Products such as paint or structural plastic systems which delineate

traffic lanes, bays and signals

• Preformed road marking products defined as tape, preformed cold

plastic road marking or preformed thermoplastic road marking with

• r without drop-on materials, as well as primers and adhesives

needed for application

• 1. Content of VOCs
• 2. Product hazard labelling
• 3. Hazardous ingredients
• 4. Content of hazardous

ingredients in glass beads

• 5. Quality and durability of road

markings

Road markings:

Content of VOCs

• In general the four different road marking systems used show

different characteristics of VOC emissions.

• The content of VOCs shall not exceed 150 g/l.
• Exceptionally, when weather conditions which prevent the use of low

VOC road markings, the content of VOCs shall not exceed 395 g/l

Product hazard labelling

• Due to the conditions of road markings and various factors influencing

their performance various substances may be released from the road marking

• These compounds can be washed off during rainfall. In this sense

hazardous ingredients may contribute to environmental hazard for land used for agricultural purposes

• Products cannot be classified as hazardous to human health or the

environment in accordance with the CLP Regulation or the DSD Directive.

Hazardous ingredients

• Road marking products contain a wide range of compounds, many of

which have hazardous properties. It is thus proposed to set restrictions on use of certain compounds:

• number of substances identified under Art. 59 of REACH
• 0.1% per compound for the phthalate in the candidate list of the

REACH Regulation

• Glass beads defined as

'transparent spherical glass particles, used to provide night visibility for the road markings’

• Require that the glass beads

shall not contain arsenic, antimony or lead at individual concentrations exceeding 200 ppm, as it is specified in the EN 1423 standard

Content of hazardous ingredients in glass beads

Quality and durability of road markings

• The tenderer shall demonstrate that the road marking maintains the

minimum performance requirements

• 1. namely for night time visibility,
• 2. day time visibility,
• 3. skid resistance and erosion,

after a defined number of wheel passages

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Thankyou for your attention

Contact details – GPP Office gpp@gov.mt