Household paints contain high levels of lead
According to a study, the popular household paints might expose you to health hazards as they are found to have lead content more than the international permissible limit.
An analysis by the Consumer Association of India in association with Quality Council of India and National Referral Centre on Lead Poisoning on several popular branded paints like Berger paints, ICI Dulux, Nippon Pylox, Gem Paints, Alfa Coat, Primer Paints, Laxmi Paints and Agsar Paints revealed that they contain unacceptable amount of lead.
"50 samples of 12 brands of wall paints were collected and analysed. This was done to determine the extent and degree of lead content in the paint. Eight brands of the enamel paints contained high concentration of lead which can be hazardous for human health," Dr Giridhar J Gyani, secretary general, Quality Council of India, said.
"The samples were tested in NABL accredited laboratories with technical support coming from National Referral Centre on Lead Poisoning in India," he said.
The golden yellow and deep orange colour of the Berger paints contain 133 and 253 times more lead content than permitted internationally and the same colours of ICI dulux
contain three times and 46.9 times more lead content than permissible, the study claimed
Abhijit Roy, senior vice president, sales and marketing, Berger Paints India Limited said, "There is no lead content in any of our products that goes to consumers. It does not cost much to make lead-free products. It is a wrong study." <more> <more2>
Further follow up
Berger, Quality Council spar over lead content report
Firm says it discontinued use of lead-based pigments in paints a year ago
Berger Paints has objected to the finding of the Quality Council of India (QCI) that its paints contain unacceptable amount of lead. The company said it was neither contacted by the National Referral Centre on Lead Poisoning in India (NRCLPI) or QCI and had, in fact, discontinued the use of lead-based pigments in paints since December 2009.
Gyani said Berger could not wash its hands of the issue by blaming other companies. The lead content was much high in their samples, up to 200 per cent more than what is acceptable.
“We can again conduct a test in the company’s presence, but it would again be a random selection and not on the recommendations of the company. If Berger is found lead-free, we would be more than happy to advertise it again in the media,” he said.
“Rather than beating about the bush by putting false allegations on us, they should come up with evidence to prove them lead-free. We are not obliged to speak to them. Instead, they should be confirming to us whether they have discontinued or still continue to use use lead in their paints,” Gyani said <more>
IPA for phase-out of lead paints
Amid the controversy over the Quality Council of India (QCI) report on amount of lead content in paints, the Indian Paint Association has approached the government to have a gradual phase out of lead from paints and to form a legal binding on this.
“The Indian Paint Association is in touch with the government to implement a law on the removal of lead from paints. The industry wants to switch over to non-lead on a phase-wise manner. Already the major players, including us, are following the international standard on this. I expect the law to be in place may be with in two years,” said Subir Bose, Managing Director, Berger Paints India.
A recent analysis of popular branded paints by QCI, the officially-sanctioned accreditation authority, in association with the Consumer Association of India (CAI), revealed unacceptable amount of lead in Berger’s paints. However, the company had said that it discontinued use of lead-based pigments in December 2009. <more>
BBB Slaps Sherwin-Williams’ VOC Claim
Prompted by a challenge from Benjamin Moore & Co., the Council of Better Business Bureaus’ ad arm has recommended that The Sherwin-Williams Co. drop its zero-VOC claim about the Harmony paint line.
This is the second time in less than a year that the Council’s National Advertising Division has intervened on a Sherwin-Williams product claim.
In the current case, NAD urged Sherwin-Williams to “modify or discontinue advertising claims that the ‘Harmony’ paint line is completely free of volatile organic compounds (VOCs).” <more>
Vista Paint Corp. Settles Waste Suit for $1+M
Vista Paint Corp. has agreed to pay $1 million to six District Attorney’s Offices in California to settle a lawsuit charging illegal transportation and mismanagement of hazardous waste and materials.
Under a settlement signed Monday (Jan. 3) in the Superior Court of California in Orange County, where Vista is based, the company agreed to pay $1.075 million. The total includes $848,000 in civil penalties and the remainder in costs and supplemental environmental projects that will provide support for the future enforcement of California environmental law.
Prosecutors say Vista Paint improperly handled and transported hazardous waste, including paint thinners and solvents, unusable paint materials, and rags and absorbents used to clean up spills of hazardous materials. Vista Paint admits no fault or liability under the settlement.<more>
Soy Materials Make a Green Mark
Soy-based materials offer renewable green technologies to a variety of industries.
The United Soybean Board funds the research, development, and commercialization of new industrial uses for soybeans. Its mission is to increase soybean demand through advancements in soy-based research and technology. Image: United Soybean Board
Companies looking to get “greener” and use renewable materials to replace petrochemical products are turning to soybeans. The soybean is a highly adaptable oilseed. The meal and oil can not only be used to feed humans or animals; it can also be used to develop products for everyday use.
Inks and coatings
Soy ink, which is used to print more than 90% of the America’s 1,500 daily newspapers and recently celebrated 20 years in use, can be found in soy-based toners as well. The Battelle Memorial Institute in Columbus, Ohio, has worked with the Ohio Soybean Council (OSC) to develop a soy-based toner for copy machines and computer printers. Battelle and OSC have perfected the science and are currently working with potential marketers to bring the product to consumers. Work continues with other research agencies regarding the possibility of soy ink in pens and other writing applications.
Soy-based coatings, such as wood and concrete stains, caulking, and other building products are making a mark on consumers and have shown versatility in new applications, including ultraviolet and electron beam-curing roof coatings and faux finishing in building artwork.
For many years, soybean oil has been a major ingredient in making alkyd resins, which are dissolved in carrier solvents to make oil-based paints. The popularity of latex or waterborne paints has presented a challenge for soy-based paints. USB works with companies like Sherwin-Williams to develop soy-based paints for consumers.
Other areas of development include: stable, waterborne architectural coatings; high-performance, volatile organic compound (VOC)-free coatings for industrial applications; and 100% solid powder coatings <more>
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"Ask Joe Powder" is a question and answer column authored by Kevin Biller of the Powder Coating Research Group. Mr. Biller has over 30 years experience formulating and manufacturing powder coatings. He welcomes your questions regarding powder coating technology. Please write to: firstname.lastname@example.org
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Here's a question we see frequently. When powdering a color that requires a clear coat, powder suppliers insist on 1/2 baking the color coat, allow to properly cool, apply clear coat to substrate then finish full bake of base and clear together for best coating. We have done both and see to get exact performance results on MEK, adhesion and other AAMA tests. Our batch line makes it easy to 1/2 bake the color coat but our conveyorized line is not power & free so it is more difficult to 1/2 bake. Which is best?
Your powder suppliers are correct - it is best to underbake the basecoat and then apply the clearcoat and fully bake the entire system. There are a couple reason why this makes sense. First the partial bake of the basecoat leaves a few unreacted sites in the coating available for subsequent chemical bonding to the clearcoat molecules. Furthermore this technique keeps the basecoat from overbaking much. Overall it sees approximately one and a half bakes as opposed to two bakes. Overbaking powders can sometimes lead to color shifts.
As for your conundrum with a continuous drive chain conveyor versus the obvious versatility of a batch oven - could you crank down the oven temperature a bit to simulate a "half" bake for the basecoat? I don't know your oven and its recovery time, but this approach may be worth investigating. Let me know how your efforts progress.
Will an interior latex paint stick to an acrylic powder coat without sanding the powdercoat? If not, what kind of primer can I use?
This is an unusual question. Usually people will ask about applying a powder coating over a liquid paint. As for adhesion of a latex paint to an acrylic based powder - I think it wouldn't be too good. It would probably require a fairly through scuffing (steel wool, Scotchbrite or fine emory cloth) followed by a clean rinse with isopropyl alcohol or acetone. As for a primer - you could use a powder primer (typically a glossy hybrid) or a solventborne primer (e.g. Krylon).
I would try the scuff prep first. Let me know if this helps.
I have a question about epoxy powder coatings. What is the difference between pure epoxy powder coating and FBE (FUSION BONDED EPOXY) powder coating? Is this difference is related to formulation or method of consumption?
It's nice to hear from you. I hope all is well in your life. Here are my thoughts on your questions:
Pure epoxy refers to a very large set of chemistry. It encompasses all epoxy based formulations including standard cure, decorative, functional, factory applied and field applied epoxy powders. By
saying "pure" epoxy people differentiate epoxy based powder coatings from hybrids which are, of course, epoxy-polyester based powders.
FBE (fusion bonded epoxy) refers to pure epoxies that are catalyzed so they can cure using the residual heat of a pre-heated part such as a pipeline or piece of rebar. The part is heated up to about 250C
then the powder is applied. The residual heat melts and cures the epoxy powder. No further heating is normally needed. So your comment on consumption is correct. I have a friend who is a very good formulator of FBE technology if you need further help. He lives in the
Middle East also. Let me know if you would like for him to contact you.
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