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

GPP criteria for paints, varnishes and road markings Green Public Procurement environment.gov.mt

Paints and varnishes environment.gov.mt

Analysis of the sector  The 1 st 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 TiO 2 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

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

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 TiO 2 in paint in Southern Europe is considerably higher .  38 and 40 g/m 2 , for indoor and outdoor paints  For undercoats and primers equal to or lower than 25 g/m 2

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

Hazardous ingredients • Paint contains a wide range of compounds, many of which have hazardous properties and can have harmful effects • The GPP criteria propose restrictions on:

Efficiency of application and durability 1. Spreading rate 2. Weathering resistance 3. Fungal and algal resistance 4. Abrasion resistance of floor paints 5. Packaging

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.

Weathering resistance • 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.

Fungal and algal 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.

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.

Road markings environment.gov.mt

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 or without drop-on materials, as well as primers and adhesives needed for application

Road markings: 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

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

Content of hazardous ingredients in glass beads • 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

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

Thankyou for your attention Contact details – GPP Office gpp@gov.mt environment.gov.mt