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https://www.leaf.tv/articles/how-to-distinguish-between-contemporary-lucite-vintage/
To find out if the plastic is in fact Lucite, a simple test is required. Take the piece of jewelry believed to be Lucite, and dip it into hot, but not boiling, water. Continue to hold the piece of jewelry in the hot water for 30 seconds. Remove the piece of jewelry …
https://www.youtube.com/watch?v=3NKG95kyTNg
Aug 07, 2017 · How to you test if something is bakelite jewelry or buttons? I show the hot water method & simichrome method. I also share how amber and tortoiseshell test ...Author: Texas Gal Treasures
https://www.etsy.com/forums_thread.php?thread_id=5620758
May 18, 2008 · An electric hot needle gives the most reliable results because it has a consistent temperature that is hot enough to test all materials that can be so tested. 2. Any test should be performed in as discreet a manner as possible, so as not to leave a blemish on the button.
http://www.collectics.com/education_plastic.html
If there is no odor, it's likely the piece is Lucite Dow Bathroom Cleaner is widely used to test vintage plastics, but you have to be very careful not to harm any gloss finishes on the the piece being tested. Test this method on a small area first on the back or inside of a piece.
https://www.jewelryshoppingguide.com/lucite-jewelry-guide/
Vintage Lucite doesn’t have a scent when dipped into hot water. When testing vintage acrylic jewelry, skip using boiling water or flame which will only damage the piece. Instead, you can test it by dipping the jewelry into a hot water for 30 seconds.
https://www.thesprucecrafts.com/vintage-bakelite-jewelry-2042951
Jan 14, 2019 · The 409 Test Some Bakelite collectors recommend the 409 Test. Here's how to do it: Dip a cotton swab in 409 household cleaner and touch a small area of the piece, such as a back that won't be visible when worn.
https://www.decolish.com/Bakelitetest.html
Many pieces will test with “Simichrome” polish or Formula 409 which turns from pink to yellow on reacting with the chemicals in Bakelite. However, old wax or polish on the pieces will prevent a positive Bakelite test, as will overdying. Some colours will frequently not react either, such as black and many reds. Black and Red Earrings
https://theloveofvintage.wordpress.com/2012/02/07/lucitelesson/
Feb 07, 2012 · In 1937, Dupont created a clear thermoplastic acrylic resin material called lucite (also known as plexiglass). In the 1940s and 50s, lucite was used to create jewellery, purses, shoes and more. Lucite, alongside bakelite and celluloid, was commonly used to create amazing novelty costume jewellery pieces. Often lucite is left transparent, but sometimes is tinted…
https://www.collectorsweekly.com/costume-jewelry/lucite
First manufactured in the 1930s as a protective coating or safety bonding for glass, the clear acrylic plastic branded as Lucite became a wildly popular material for costume jewelry in the 1940s and ‘50s. Less expensive to produce than Bakelite, Galalith, and Catalin and more chemically stable than celluloid, Lucite made these earlier jewelry plastics obsolete.
https://www.citrusavenue.net/jewelry-articles-information/bakelite-jewelry
The 409 Test. This test involves moistening a cotton swab in regular old Formula 409, then rubbing the swab on the piece in question with moderate pressure. A yellowish stain on the cotton swab indicates a …
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