Is Working with PVC Pipe Safe? Everything I've read indicates to me that working with common PVC pipe can be as safe as working with other kinds of craft and building-type materials. Nothing has convinced me otherwise.      There's been a lot of negative talk in the media and online lately about the effects of PVC in consumer products. Don't confuse the added-to plastic found in those products with "furniture" and "plumbing" grades PVC pipe and fittings. They are not the same thing.      In many plastic products a couple of additives, called plasticizers, may have been added that make PVC change properties. 1. Phthalates are chemical substances that make PVC flexible and soft. These additives are used in products like toys, baby products, cosmetics, food wrapping materials, shower curtains and so on. 2. Bisphenol-A is used to make products shatter resistant and for high-heat resistance. You'll may find this additive in such items as baby bottles, eating utensils, microwave ware, water bottles and the like.       Both these chemical additives are "suspected" by some to cause cancer and, possibly, developmental problems. The concern is with these plasticizers, not the PVC itself.       Phthalates and Bisphenol-A are not added to common PVC pipe.       Scientific reports are mixed on the safety of those two additives. If you're interested, you can read more at  www.factsonplastic.com/?gclid=CMbdztDS6pMCFRZZiAodvRnPVg and www.phthalates.org/whatare/index.asp. There are many other sites as well that contain information, both pro and con. Also, you can read how PVC is made here.      Before heating PVC pipe at very high heat, know that there's a potential of discharging dioxins along with other toxic and potentially cancer causing gasses.      The greatest risk comes from vinyl chloride, a primary component of polyvinyl chloride (PVC) and an odorless gas which could be released with very high heat. Vinyl Chloride is a toxic carcinogen, which can cause a deadly primary liver cancer.      Therefore, when heating PVC pipe, make sure the room in which you're working is well ventilated and you take common sense precautions . In my research, I've found no evidence that the temperature needed to bend pipe will release dioxins. But I always encourage people to err on the side of caution.       And in case you want to make and use PVC projects for your kitchen, read this from Robert L. Wolke, The Washington Post...      "At the other end of the PVC hardness spectrum is PVC pipe. It is made of hard, rigid PVC that contains no plasticizer. What isn't there cannot leach out into food. So clean, room-temperature PVC pipe can be used as a perfectly safe food utensil. And that's a fact."      Some toys made with PVC may contain a plasticizer (as mentioned above), which by some accounts, can be harmful to children when put into their mouths. However, an independent panel of scientific experts commissioned by the U.S. Consumer Products Safety Commission dispute this. Either way, since PVC pipe and fittings do not contain a plasticizer, I've found no evidence that it's harmful.      Following are quotes from the Plastic Industry Pipe Association...      "In 1998 and 2001, the Australia’s Commonwealth Scientific and Industrial Research Organization (CSIRO) extensively reviewed recent scientific literature on PVC and concluded 'the balance of available evidence indicates that PVC in its building and construction applications has no more effect on the environment than its alternatives.'      In 2004 the U.S. Green Building Council PVC Task Group issued a draft report on PVC related materials. This report was based on an analysis of over 2,400 scientific papers, submissions from green groups, the building industry and PVC industries. The report concludes 'the available evidence does not support a conclusion that PVC is consistently worse than alternative materials on a life cycle environmental and health basis.'      Furthermore, in 2004 the European Parliament commissioned a Life Cycle Analysis (LCA) study on PVC - 'Life Cycle Assessment of PVC & of Competing Materials.' This report found no evidence to support a bias against PVC and as a result has placed no restrictions on its use."      Also, since PVC is a thermoplastic material it is readily recycled.      And this from the Roanoke (VA) Times... Agencies have found vinyl is safe to use      "Gregg Lewis' commentary ("Pick your poison, or demand change," Oct. 4) contained misinformation about polyvinyl chloride (PVC or "vinyl") that should be corrected so readers get a more accurate view of a material that has been used safely for years in household, health care and building applications.      According to the U.S. Environmental Protection Agency, vinyl manufacturing accounts for a tiny percentage of U.S. dioxin emissions. More is generated by forest fires, backyard trash burning and internal combustion engines.      Total dioxin emissions have dropped 90 percent since 1987. During the same period, vinyl production in the U.S. increased to more than 15 billion pounds.      As for phthalates, substances added to vinyl to make flexible products such as toys and shower curtains, there is no scientific evidence of which we are aware that phthalates have caused harm from use in a vinyl product. The U.S. Consumer Product Safety Commission did a study of phthalates in toys before ruling that they were safe for use.      The effects of vinyl products on health and the environment have been investigated at every stage from manufacture through use and final disposal, and have been shown to be safe and environmentally sound.      For more information, readers can visit www.vinylnewsservice.net."      And this from the Canada Newswire... Scientifically baseless attack on PVC could hurt consumers, resulting in use of riskier and less affordable materials VANCOUVER - Recent activist attacks on PVC, one of the most sustainable, useful and affordable plastics available, are without any basis in scientific fact and could hurt consumers by forcing retailers to adopt the use of riskier, less affordable materials, Greenpeace co-founder and former leader Dr. Patrick Moore says.      "Environmental Defense and other anti-PVC activists are engaged in a fear-mongering campaign that's attempting to convince retailers like Sears to de-select PVC without a shred of scientific evidence," said Moore, a Greenpeace co-founder and Chairman and Chief Scientist, Greenspirit Strategies Ltd. PVC is commonly known as vinyl or polyvinyl chloride. It has recently come under attack by Environmental Defence Canada.      "It's completely unacceptable for these activists to call PVC 'toxic' when PVC's effects on health and the environment have been investigated at every stage from manufacture through use and on to final disposal - in all cases vinyl has been shown to be safe and environmentally sound," said Moore.      "The most rigorous risk assessment ever undertaken by the European Union on plasticizers used to make PVC flexible was conducted over 10 years, and concluded these widely used additives should not be classified as hazardous and pose no risks to either human health or the environment from their current use," said Moore.      "Anti-PVC activists are pushing retailers toward untested, less affordable and potentially riskier materials and that's bad news for Canadian consumers," said Moore.      "PVC is one of the most thoroughly tested plastics available. Because it is easily cleaned, affordable, durable and safe, PVC has many important applications," said Moore.      "The best way to deliver affordable, safe drinking water is through a PVC pipe. The best way to insulate electrical wiring is with a PVC coating. In hospitals, floors and wall coverings use PVC widely. PVC is a durable, cost-effective siding for buildings because of its low maintenance and long life. Building with PVC saves on energy and material costs," said Moore.      "Alternatives simply don't match the safety, affordability and flexibility of PVC," said Moore. "That's why PVC continues to be a very popular choice in many applications," he said. * * * * * * * * * *      Of course, always carefully read, understand and follow the label instructions on PVC pipe glue containers before gluing. And always read, understand and follow PVC manufacturer's labels or ask a manufacturer's knowledgeable representative. NOTE: If you cut pipe with power equipment, wear a proper dust mask or respirator to protect against particulate dust. Just like you would when cutting metal, wood or other materials.      Making things with PVC is loads of fun, but, as in all things when you use tools and materials, it's wise to exercise common sense. Back to the Workshop's Home Page Site Map