Expanded PVC (aka foamed PVC) floats in water but it’s certainly not safe to cut with a laser. These points indicate that workers involved with laser cutting of plastics may potentially be exposed to unacceptable levels of hazardous substances. It creates harmful gases. Laser cutters use a powerful laser for precise cutting and engraving. They are often easily affordable and easy to use causing the use of laser … Subscribe to our newsletter to receive the latest news and events from TWI: Polypropylene, polyethylene and polycarbonate all generate benzene, a carcinogen, during laser cutting. Emits pure chlorine gas when cut! Follow the manufacturer’s documentation for safe use of laser cutters. Surfaces near cut edges discolor badly. <>>> %PDF-1.5 Laser cutting of fluoropolymers should be the subject of a rigorous risk assessment. You can call our toll free number at 1-866-735-9255 and we can give you the tech-support number for DOW which manufactures Styrofoam. <> ... Do you have to wear safety glasses while operating the laser cutter? ۉFx�׻'���;�鍕�u~@3,�@w�Qn���됎��s� ����e��W탧�����>��RY�(�>��0��W���9H@f!�j�Í��T���ϹEADd�8oO��mچ����ٛm��S��a����Ђ6XԳ�wM�7�� � ��Yz����ѻ?j��`��7� B.֬�?��� ��?n�$�h�i ucՔ��]�4�:�V��d���.o�/ౕ�㍴8ze�Q� ��{���&P7��o��8��/m�qh���۫_셍#06�V �� ?���|��7�4���ɤ�4���1��%��fיPN̙BCa� Ą��ȋm�*y���K3��)� ޘ��p�T����nWr. Polystyrene releases styrene, while PVC emits hydrogen chloride. This is the #1 material that causes laser fires!!! Keep in mind when you read the Material Safety Data Sheets (MSDS) for the foam you look up that they often are referring to possible safety hazards when manufacturing foam, not cutting it. Laser technology produces heat in a highly controlled manner because of how quickly it moves across the foam material. ; but its really hard to say how much styrene is actually burning during the laser cutting process and if that translates into a hazard. See more on cut widths and Kerf (how much the laser takes away.) Laser processing these materials creates dangerous gases or dust. endobj B Many wowoods 1/4" Avoid oily/resinous woods The laser doesn't work on polystyrene. Laser marking machines provide a permanent coding solution that is ideal for high resolution or high speed production line marking requirements such as batch and date coding, scribing barcodes, logos or intricate part marking.. Like PolyStyrene, it melts, catches fire, and the melted drops continue to burn and turn into rock-hard drips and pebbles. The copper wire test would identify ePVC as a problem. Ceramic based foam is not usually cut with a laser because it is very brittle and can crack. x��][o��~7��0��`�j�}=ص�� ���}���]_��ٜ����O'/���l�����gO7?�~���9۰�i�y����Gl�����޲�(憉��O�������Go��=����ذ=�;���=�O����w�U���eǺ��ݸ=��X�}�{"[���S�a�_�Ǐ��_ �������? Yes. laser safe plastic laminates bamboo products cork felt ... polystyrene foam polypropylene foam ABS fiberglass HDPE/milk bottle plastic. For this reason, it is recommended that these materials are not welded above their recommended weld temperature and that a good standard of local exhaust ventilation should be used. quite smelly. stream :���V*�5b�R�q���O7�)�5�M��5em3����(R2�AW����=�N��X���p����;&�*� ?�懳ݰ��~���|̶� ��� ��S���`��o���S�}��2�����AZs��H�Q�>j(�?���n�����?�G��ED������]o�4{�j�g�R $�4�.q�7�O}�~��Q��a~�>�;�F4�fAu�>ȏz���U51��LJyh�N��th�s������3�)Y���t����G�ۿ�19[���I answer choices . For this reason, it is therefore recommended that PTFE-coated hot plates should not exceed a temperature of 270°C. Register laser cutters on the appropriate groups’ BioRAFT equipment page. 5mm is a safe distance. v. The cutting and marking of polystyrene (PS) with CO 2 laser systems is characterised by its high precision and flexibility. ii. For examples of materials I love to use, check out my list of favorite things, including materials and some places to buy them! Use the air assist feature and verify it is working properly when cutting. It can poison you, cause a fire, or damage the laser system; If a material you want to cut isn’t listed on the approved list below, please consult with a Peer Mentor and have an MSDS sheet ready for the Peer Mentor to look at. While these machines can be of a reasonably high wattage and cut many materials with ease, most metals cannot be cut by the laser machines offered for sale here! Follow the manufacturer’s documentation for safe use of laser cutters. Skin, Eyes and Lung Irritation Exposure to polystyrene dust as a result of cutting Styrofoam can result in skin, eye and lung irritation. ABS, HDPE, polystyrene and polypropylene, and anything with poor thermal properties is going to ignite rather than cut cleanly. ii. “melty” raised edge if you’re not careful. Tags: Question 8 . ... We courier your laser cutting daily to Sydney, Brisbane, Melbourne, Newcastle, Canberra and beyond. PolyStyrene Foam or PolyPropylene Foam (not to be confused with EVA foam, which is laser safe) I hope this information about what is and isn’t safe to laser is helpful! These devices can be used to cut, etch, engrave, or drill a variety of materials. Producing the same gasses that were used in gas chambers seems pretty darn dangerous and like there should be red flags up everywhere. Foam is used for suitcase inserts or padding, and for seals. A fire safety plan will go a long way, but you can avoid ruining your laser cutter by being aware of what materials frequently catch fire. Due to contactless laser cutting, the PE foils will not be damaged. The hazards associated with a laser cutter include the possibility of fires and the generation of hazardous and/or irritating combustion products. Certain types of material should not be engraved or laser with a laser because of their chemical make-up. It … Many plastics also give off ultra fine particles, plus carcinogenic polycyclic aromatic hydrocarbons. Make sure you leave lots of space between each component. The Fiber laser can cut through thin sheets of foam (up to 1/8” or 3 mm). They say when burned, polystyrene emits styrene, carbon monoxide and other hydrocarbons. Safe Materials The materials that the laser can cut, are materials like wood, paper, cork, and some kinds of plastics. The versatility of laser cutters is remarkable, considering they can cut, mark and etch. What is confusing about this is that polyurethane is generally considered a very "laser friendly" material to cut (stated all over the place on laser hobbyist and professional websites under acceptable materials). Tags: Copyright © 2021 TWI Ltd. All rights reserved. Polycarbonate is a poor choice for laser cutting. Polymers vaporize quickly when cut with a laser beam, resulting in smooth edges with minimal heat affected zone. It tends to melt rather than vaporize, and has a higher chance of catching on fire and leaving behind melted gooey deposits on the vector cutting grid. Exposure to fumes given off during the hot gas welding of plastics such as PVC, nylon, PMMA, polycarbonate and polypropylene is not normally likely to give cause for concern. Register laser cutters on the appropriate groups’ BioRAFT equipment page. Polystyrene Cutting Example Marking Example Name Also Known As Type Laser Wavelength General Cut Quality General Mark Quality Barcode Mark Successful Safety Polystyrene Thermoplastic 10.6 µm nFair-good: Moderate melt & residue nFair-good: Engrave marks with some melt-back nNo <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/Annots[ 9 0 R] /MediaBox[ 0 0 612.18 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> If you don’t know what the material is, then don’t cut it. that corrode the interior of the laser cutter. Etching can be done on almost anything, wood, cardboard, aluminum, stainless steel, plastic, marble, stone, tile, and glass. 2 0 obj Polystyrene foam Catches fire This is the #1 cause of laser fires! Polyethylene – Laser cutting of PE foils. not suitable for engraving. However, there may be a health risk where the welding takes place in confined spaces in which the welder's head is close to the welding operation, and where ventilation is restricted. Make sure you leave lots of space between each component when nesting – 5mm is a safe … Consult safety data sheet (SDS) for all materials being processed in laser cutters. The laser cutter has the ability to accurately cut or etch numerous materials such as wood, paper, cork, and some kinds of plastics. The laser cutter high powered laser can cause damage to eyes and skin, and it must be contained within the cutter. Polyethylene foils can be cut fast and precisely with laser systems. Styrene on its own is considered a hazardous chemical. The rule is that low-power CO2 lasers cannot cut or engrave Metals...!!! Polycarbonate/Lexan cuts poorly, discolors, catches fire Polycarbonate absorbs infrared energy, and thus cuts very poorly—tends to melt or burn instead. For example, if cutting from 2mm Hips, it’s best not to allow anything less than 2mm in width. relatively poor choice of colours. Laser Coding. Laser engraving of polystyrene can be performed with a 9.3 or 10.6 micron CO 2 laser and results in depth with a smooth slightly melted surface. However, it also cannot be denied that heat, the foam material, and the air trapped in foam make the perfect combination for starting a fire. Home. In addition, the filters that are commonly used to clean up the fumes that originate from laser cutting of metals will not remove the fumes produced from plastics. This is the #1 material that causes laser fires. 3 0 obj Cutting Material Max thickness Notes WARNINGS! We also ship internationally. Polystyrene releases styrene, while PVC emits hydrogen chloride. This is a pretty safe process under normal circumstances. A laser cutter is a cutting device which focuses a high energy laser beam onto a material resulting in a high quality and dimensionally accurate cut. Foams made of polyester (PES), polyethylene (PE) or polyurethane (PUR) are well suited for laser cutting, laser engraving and laser marking. ... and may not laser cut … %���� Hips has a tendency to heat up when being cut which can cause the sheet to melt and warp during the cutting process. Cut very poorly, ... it melts, and only thin pieces cut. Drawbacks of laser cutting polystyrene. endobj iv. Of greater concern is exposure to hazardous fumes during hot gas welding of fluoropolymers such as PVDF, ECTFE, PFA and FEP, which can cause influenza-like symptoms known as "polymer fume fever". When the DMS evaluates whether a material is suitable for use in our lasers, we typically look at four factors: WARNING: Because many plastics are dangerous to cut, it is important to know what kind you are planning to use. For metal based foams, a Fiber laser is most effective. Apart from these, laser cut foam is also used for artistic applications, … endobj iii. <> comes mostly in thin sheets. Make has a How-To for identifying unknown plastics with a simple process. Polypropylene, polyethylene and polycarbonate all generate benzene, a carcinogen, during laser cutting. Many plastics also give off ultra fine particles, plus carcinogenic polycyclic aromatic hydrocarbons. Laser Safety. Laser marking of polystyrene with a CO 2 laser is not recommended as a contrasting mark is not created. 4 0 obj There are a wide range of materials that the Blue Laser Cutter and Red Laser … The risk of fire is too high. … Laser cutting of polystyrene can be performed with a 9.3 or 10.6 micron CO 2 laser, resulting a clean, smooth, slightly melted cut edge, free of discoloration. The Laser engraver /cutter machines here are of a design that does not mark or cut most metals. i. Safe Materials. 1 0 obj It catches fire quickly, burns rapidly, it melts, and only thin pieces cut. ... Laser Cutting. No. ... Keep the laser cutting grid area clutter free by cleaning frequently. Safe Materials DANGER! SURVEY . ABS Emits cyanide gas and tends to melt ABS does not cut well in a laser cutter. Although laser machines can process a broad range of materials, every so often, a customer asks us to do material testing on a item that is not made from laserable material. National Structural Integrity Research Centre, Granta Park, Great Abington, Cambridge, CB21 6AL, UK, Health and Safety for Cutting and Welding of Plastics. Itchy eyes … You can cut this stuff and the universe will be safe if you cut thin pieces and watch closely. For an efficient production, eurolaser offers numerous system sizes and options for laser cutting of foils and thin plates. Hence, the need for employers to install the correct ventilation systems so that exposures are controlled adequately. The laser will be unfocused, won't cut properly and the material might catch fire. The EPA says its "a suspected toxin" to the respiratory system etc. Another fluoropolymer that can cause polymer fume fever when overheated is PTFE, which is used as a non-stick coating for hot plates that are used for welding other thermoplastics. Polypropylene has a low melting point and have a tendency to heat up when being cut which can cause the sheet to warp during the cutting process. 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