Onboard Maintenance Painting Guide

Transcription

1 Onboard Maintenance Painting Guide

2 Contents Introduction and planning: 3 : 4-5 : 6-8 : Marine Coatings All products supplied and technical recommendations given are subject to our conditions of sale. OBM Painting Guide

3 Introduction Onboard maintenance (OBM) of coating systems is important in maintaining the cosmetic appearance of your vessel, minimising the onset of corrosion and ensuring that your vessel stays in good condition which reduces the costs and time of scheduled dry dockings. This guide contains information on planning and carrying out OBM work efficiently and safely. Planning Once these steps have been taken, it is time to look at the critical vessel areas and the paint specification. The coating specification to be applied will be dependent upon the vessel area being treated and this will have an impact on planning the work. It is recommended that the vessel be sectioned off into small, manageable areas. Introduction and planning Maintenance painting onboard and alongside in port should be planned to maximise the efficient use of resources both in terms of crew time and in the volume of paint used. A well planned maintenance programme that involves evaluation of the entire process, good record-keeping, and use of high performance coating materials can mean less time and money spent on OBM in the long run. The success of any coating system relates directly to the level of care and attention paid to the fundamentals of good painting practice, particularly surface preparation, mixing of coating materials, and, of course, their application. Furthermore, the paint locker should be well ordered, the racks and shelves clearly labelled by product name, and good stock rotation should be followed. Outdated, worn, and poorly maintained equipment for preparation and application can dramatically reduce the success of OBM painting. An OBM planning meeting Key factors to consider are: The technical data sheets for the products to be used provide the following information: life, in practical terms, is the time from combining the components of a two component product to the point at which the mixed paint is no longer usable) Here is a simple checklist of good practices for improving onboard maintenance. equipment as needed. coating type, and condition of the stock. onboard in an easily accessible and well-known place. 3

4 Introduction and planning The single most important function which can influence paint performance is the quality of the surface preparation. The importance of removing oil, grease, old coatings, rust and other surface contaminants cannot be over stressed. The following process is recommended: Freshwater wash This is best achieved using something like a fan jet lance or a power washer if available Degrease is usually done using rags or brushes soaked in solvent. If a painted surface is to be degreased without being damaged, a solvent must be chosen which will not dissolve the paint film. Steel preparation recommends that a standard of at least St2 thorough hand and power tool cleaning is achieved for bare steel areas. The existing coating should be taken back to a sound edge and the edges should be feathered back using a combination of manual methods: Hard scraping or slicing various types of scraper. Scrapers are useful for removing loose material. Chipping hammers or chisels be carried out using a wide variety of hammers or chisels, best results are obtained if chipping is followed by secondary preparation such as wire brushing. Wire brushing can remove loose contamination, but it is ineffective at removing scale and deep seated corrosion. Hard scraping Freshwater washing 4 Marine Coatings All products supplied and technical recommendations given are subject to our conditions of sale. OBM Painting Guide

5 Power tool methods of surface preparation Power tools used for cleaning fall into two basic categories Rotary wire brushing using braided wire wheels Radial brushes are used for preparing awkward areas often used for preparing large areas. Rotary discing cleaning of a surface is achieved by coated abrasive discs attached to angle grinders or by using abrasive flap wheels attached to straight or in-line tools. For both rotary wire brushing and rotary discing, the surface must not be polished and it is essential that a surface profile is created. Clean down residual dust, paint flakes and debris removed by brushing or vacuuming. should begin as soon as possible after cleaning to prevent deterioration of the prepared surface. Introduction and planning Rotary discing Rotary wire brushes 5

6 Introduction and planning Paint mixing Before use, paints should be mixed well, following the instructions on the technical data sheet. the guidelines on the technical data sheet. wet film thickness. This should be measured using a comb gauge. Brush application half the length of their bristles, the aim is to load the brush with enough paint to get some work done, but not too much so the paint drips and splatters. steady strokes then be smoothed by light parallel strokes to eliminate irregularities. paint in a vertical direction because this will reduce the tendency of the paint to run or sag. thick coat or multiple thin coats which can be applied when the paint is touch dry if the area is accessible. applied paint is brushed into the bottom of pitted areas of steel and that the edges of nuts, etc are well coated. Brush selection Application by brush is recommended for patch priming and repair work to ensure good wetting of the substrate. This is essential when painting over manually prepared surfaces. required and the quality of finish to be achieved. Flat and round ended paint brushes used on flat areas. Angular cut sash brushes 2-3 (5cm - 8cm) wide are used on narrow surfaces, and round or elliptical section brushes are used on irregular shapes such as nuts and bolts. for painting the backs of stiffening bars and other inaccessible areas in tanks. 6 The brush should be held like a pencil Marine Coatings All products supplied and technical recommendations given are subject to our conditions of sale. OBM Painting Guide

7 Roller selection such as tank tops, vertical sides, walkways and deck areas. and rough steel, because paint can be worked into the profile of the steel. Introduction and planning brush application. and mohair. Synthetic foam rollers have no role to play in the marine industry, they are prone to dissolve in the type of solvents used in heavy duty coatings and can swell and distort. fibre length. Small diameter rollers are used for areas of awkward or difficult access, but the most common sizes are 1½ - 2 (4-5cm). Length can be anything from 1 to 18 (2.5-46cm), but the 9 length (23cm) is most popular. Roller application roller application. until fully saturated, and then roll it back and forth on the tray ramp to remove all excess material. but ensures that the roller is fully wetted and that air is removed from the fibre pile. Roller application or M shape area should then be filled by rolling back and forth until it is covered, with finished rolling in one direction so that appearance is uniform. coats; multiple applications can be required to meet specifications. fast drying coatings. This is often associated with serious entrapment of air. Roller sleeves in the paint bucket or paint tin and work out excess material on this. This can allow the painter to work from ladders or scaffolds. 7

8 Introduction and planning Comparison table The following table gives a simple comparison between brush and roller paint application: Advantages Disadvantages Weather conditions forecast then exterior maintenance painting should be abandoned or suitable covering should be installed over the areas in question, condensation also needs to be avoided. Brush Roller Good for small, complex areas Inexpensive equipment Minimal wastage Faster than brushing They require more coats to achieve film thickness They require more coats to achieve correct film thickness lower than the atmospheric dew point; providing that measured dew point then condensation is unlikely to occur and painting can proceed. during maintenance painting activities. Technical data sheets should be consulted during planning of any maintenance painting work: epoxies and polyurethanes can be slowed down. surface is free of frost and ice. Good for large flat areas Possibility of uneven film thickness can result in difficulties in brushing and rollering of paint. 8 Marine Coatings All products supplied and technical recommendations given are subject to our conditions of sale. OBM Painting Guide

9 The primary source of health and safety information is the product Material Safety Data Sheet; these are available for all International Marine products from: and safety information in the form of simple one page safety advice sheets, which are designed to help paint applicators, for example. safety advice sheet Marine & Protective Coatings This contains basic health, safety and environmental information that is important for the actual user of the product. It does not replace the Material Safety Data Sheet. Product Name: Interlac 665 Ref No: 0015 Use/Application Safety Dangers Health Dangers Control Measures First Aid (In case of doubt seek Medical Advice) Other Emergencies Waste Disposal Important Note Revision Number 1 An alkyd cosmetic coating for use in non-immersed areas. May be applied by airless spray, conventional spray, brush or roller. This paint contains solvents. When used or spilt it will release solvent vapours which may catch fire or explode. If breathed in, solvents may cause headaches and dizziness and long term nervous system damage. Paint in the eyes will cause irritation. Repeated splashes on the skin may cause irritation, loss of fat and skin damage (dermatitis). Extraction/Local Extract Ventilation: When paint is used anywhere inside a confined space or area with limited ventilation on a ship or inside a building, forced extraction with fans must be used to stop solvent from creating an explosive mixture and to reduce the solvent concentration that people may breathe in. or or Ignition: Cigarettes, lighters, matches, welding or cutting torches, grinding and all electrical equipment except approved spark proof lights must be kept well away from paint mixing and paint application. Personal Protective Equipment Lungs (Inhalation) The sprayer and assistant should always wear a cartridge respirator. Other people who can smell paint should also wear a cartridge respirator or carbon mask unless they are sure the solvent concentration is below the national occupational exposure limit (OES). Cartridge respirators and carbon masks become less efficient with time and should be replaced periodically. (Follow respirator manufacturers recommendations). Eyes: Wear safety glasses or goggles or a face shield at all times when mixing, spraying, rolling or brushing paint. Skin: Wear an overall with full length sleeves and legs. Wear solvent resistant rubber gloves (long sleeve). Wear safety boots. Make sure there is no gap at wrist and ankles. Change and wash the overall as appropriate and at least twice a week. If paint is able to pass through the overall, replace it. Wear a hard hat. Protect face skin with barrier cream (not petroleum jelly). Gloves should be replaced periodically. Hygiene/Cleanliness: Always wash hands before eating, smoking or going to the toilet. Paint transferred from the hands to other parts of the body can cause damage. Have a shower at the end of the working day. Breathing/Dizziness: If inhaled, quickly take the person to a place with fresh air. Lie them down and keep them warm. If breathing has stopped, give them artificial respiration (the kiss of life ). If breathing is difficult give oxygen. Seek medical attention. Eyes: Give rapid assistance by holding the eyelids apart and washing with clean fresh water for at least 15 minutes. Afterwards seek medical attention (some paints stick to the eyes and need UV light to be seen and specialist cleaning to remove all traces of paint). Skin: Quickly remove clothing and wash skin with soap and water or a special skin cleaner. DO NOT use solvents (thinner/equipment cleaner). Mouth: If paint is accidentally swallowed quickly get a doctor or take the person to a hospital, DO NOT make the person vomit/be sick unless instructed to do so by medical personnel. If conscious they should drink as much water as possible. Never give anything by mouth to an unconscious person. Spillage: Put sand/earth around spills to stop them getting into drains or rivers or the sea. Absorb the paint with more sand/earth and send to a special waste dump/treatment works. Fire: Fight fire with foam (large fires); Powder, CO2 foam (small fires). Follow local regulatory requirements. The Product Data Sheet, the Material Safety Data Sheet and the package labelling together form an integral information system about this product. Copies of the Product Data Sheet and the Material Safety Data Sheet are available from International Paint on request or from our Internet sites: http// & http// Official Advisory Body Tel. No. For Advice to Doctors & Hospitals Only +44 (0) Country 24 Hr. Emergency Tel. No. Country 24 Hr. Emergency Tel. No. Australia +61 (0) Sweden 112 Finland +358 (0) Turkey +90 WM/Interlac 665/DS (0) January 2004 Portugal +351 (0) UK & Rest of World +44 (0) Safety advice sheets for marine products are available from: safety-advice-sheets.aspx The following notes give some very basic advice on health and safety when using International Marine paint: Health hazards headache, nausea, dizziness and drowsiness and in extreme cases even loss of consciousness. Splashes in the eye will cause discomfort and possible damage. Prolonged contact with skin can lead to skin irritation and in some cases dermatitis. Health precautions Inhalation ventilated areas and if necessary use local ventilation methods such as respirator masks. Eye contact suitable safety goggles or glasses. Skin contact suitable clothing and gloves. Barrier creams are not an acceptable alternative to the proper choice of glove. Ingestion - whilst there is little hazard by this route during onboard maintenance painting, do not eat whilst handling paint. First aid Inhalation keep warm and rest. Eye contact for at least ten minutes holding the eyelids apart. Skin contact wash the skin thoroughly with a proprietary skin Ingestion General 9 Introduction and planning

10 Introduction and planning Fire and safety precautions Storage shaded conditions away from heat and ignition sources. Specific conditions can be found on individual product technical data sheets. Ventilation painting operations should be promoted. Ignition all naked lights and unprotected electrical equipment have been removed from the area. Waste disposal accordance with prevalent local requirements. Personal protective equipment The following equipment should be used during onboard maintenance painting: Safety helmet Safety boots and/or shoes Safety goggles Dust mask Safety spectacles Fluorescent or high visibility vest or jacket The following should also be available as appropriate: Life jacket Fall arrest safety harness and lanyard Gloves or gauntlets Face mask and cartridge filters For further information: Overalls Hearing protection +44 (0) Fax: +44 (0) Send an 10 Marine Coatings All products supplied and technical recommendations given are subject to our conditions of sale. OBM Painting Guide

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12 International Paint Ltd is part of AkzoNobel, the Netherlands based company serving customers throughout the world with coatings and chemicals. International Paint Ltd, Stoneygate Lane, Felling Gateshead, NE10 0JY United Kingdom Call: +44 (0) Fax: +44 (0) Send an Visit our website: Sign up to keep up to date with our latest news visit Follow us Important Notes: All products supplied and technical advice or recommendations given are subject to our standard Conditions of Sale. The contents of this leaflet are for information purposes only and no representation or warranty of any kind is given in relation to any of the information or opinions expressed in it. Whilst we have made all reasonable efforts to ensure that statements appearing in this leaflet are accurate, we disclaim all liability and responsibility arising from any reliance placed on the information, advice and opinions contained in this leaflet. and International and all products mentioned in this publication are trademarks of, or are licensed to, AkzoNobel. AkzoNobel, 2014 When you have nished with this brochure, pass it on to a colleague or recycle AkzoNobel is a leading global paints and coatings company and a major producer of specialty chemicals. We supply industries and consumers worldwide with innovative products and are passionate about developing sustainable answers for our customers. Our portfolio includes well-known brands such as Dulux, Sikkens, International and Eka. Headquartered in Amsterdam, the Netherlands, we are consistently ranked as one of the leaders in the area of sustainability. With operations in more than 80 countries, our 50,000 people around the world are committed to delivering leading products and technologies to meet the growing demands of our fast-changing world Akzo Nobel NV. All rights reserved.