Talk:Gutta-percha

message: in calling this a latex, is that correct? Is latex one specific compound from the rubber tree, or is it a more generic term that can be applied to several forms of hardened tree sap?
: Generic: Latex makes it sound like the fluid sap or non-rigid dried sap of many plant species. - Rod57 (talk) 04:54, 24 August 2015 (UTC)
thread_title: Latex

message: The statement, up front and center "... insulation for underwater telegraph cables, which led to unsustainable harvesting and a collapse of the supply" seems to be extremely biased, even if it is from a published work. John Tully appears to be a far left-wing author, whose view might not be shared by others. To make this statement shown above appear as fact is hardly neutral! I have qualified the statement.  — Preceding unsigned comment added by ExpatSalopian (talk • contribs) 22:31, 11 March 2015 (UTC)
thread_title: Unsustainable harvesting?

message: "Allowing this fluid to evaporate and coagulate." What fluid?  — Preceding unsigned comment added by 24.62.253.103 (talk) 12:55, 7 October 2017 (UTC)
thread_title: Manufacturing process not described clearly

message: The value as an insulator is due not to high dielectric constant, but to high dielectric strength. Dielectric constant is the property of an insulating material that increases the capacitance between the conductors it insulates. A material would be more valuable as an insulator with a low dielectric constant, since it would be a low capacitance insulating material.
70.246.223.152 05:35, 16 October 2006 (UTC)
thread_title:  dielectric constant 

message: Só gostaria de acrescentar que a Guta-percha também é uma planta nativa da Amazonia, América do sul. Há uma fabrica de guta no munícipo de Manacapuru, marca Tanari.
Above comment in English:
I would just like to add that Guta-percha is also a plant native to Amazonia, South America. There is a gut factory in the municipality of Manacapuru, brand Tanari. "Pij" (talk) 23:35, 1 May 2017 (UTC)
replies: text: Possible citation for Tanari: https://www.aegisdentalnetwork.com/id/products/manufacturers/tanari . This NLM page: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6632621/#sec1-4title lists locations gutta-percha producing trees are found, including South America and more specifically Brazil. I think that confirms they're native, but it might be best if someone more experienced than me has a look at it, or finds a clearer source. The page also states, "It is usually imported from Central South America for its use in dentistry[...]" which may be of interest for the article. eekee (talk) 16:23, 23 May 2023 (UTC)
thread_title:  Source Location 

message: In adding this to the endodontic navbox, I hope that viewer visits will increase and perhaps help to expand this article, as the primary use of gutta percha worldwide is probably its use as a root canal obturation material.  I find the species list here quite obtrusive and uninformative.  I was hoping to be able to insert a little 'show/hide' mark in the species division of the information box, so that the physical length of the article space does not have to be as excessively long as it is now, but I could not figure out how to do it, if it's even possible.  If someone can do so, please follow through.  Thanx. DRosenbach (Talk | Contribs) 11:26, 19 June 2007 (UTC)
replies: text: Done on the talk page.  The show/hide function cannot be done on the info box of the article. Miranda 11:34, 19 June 2007 (UTC)
thread_title:  Dentistry 

message: I'm told by an antique jewelry expert that Westerners [English jewelers, specifically] were using gutta-percha for jewelry because it was light, durable, and above all, nearly black. Perfect for mourning jewelry, which was important at the time, yet less costly, as well as more durable, than glass. So the line about Westerners discovering its properties seems inaccurate.  —Preceding unsigned comment added by 24.30.93.88 (talk) 02:00, 6 October 2007 (UTC)
thread_title: 1842

message: I'm not an expert on gutta-percha, otherwise I just would have changed this myself, but polyisoprene should have 5 carbon atoms per repeating unit.  The figure showing the chemical structure of gutta-percha has only 4 carbon atoms inside the brackets indicating the repeating unit.  Can someone else confirm that this is incorrect?  —Preceding unsigned comment added by 96.227.98.203 (talk) 17:12, 27 June 2009 (UTC)
replies: text: Yes, it should be 5 carbons within the brackets instead of 4 carbons.  I have corrected this problem in the article by substituting a correct image for the incorrect one.  H Padleckas (talk) 04:15, 1 July 2012 (UTC)
replies: text: The chemical structure is still incorrect. What is currently shown is cis-1,4-polyisoprene, which is natural rubber. Gutta Percha is trans-1,4-polyisoprene. I have removed the current wrong chemical equation. I don't know how to upload a correct one. Ignitionxvi (talk) 09:27, 16 October 2020 (UTC)
thread_title:  Chemical Structure 

message: The trivia sectioned should be fixed, as per WP:Trivia.  -71.109.173.5 (talk) 05:36, 13 November 2009 (UTC)
thread_title: Trivia

message: To add to this article:  a photo of a cane made from gutta-percha. 173.88.246.138 (talk) 06:12, 22 February 2021 (UTC)
thread_title: To add to article