{"id":19736,"date":"2024-10-24T09:32:19","date_gmt":"2024-10-24T07:32:19","guid":{"rendered":"https:\/\/www.finres-sa.com\/product\/silicone-rtv-for-molding-feingosil-120\/"},"modified":"2026-04-20T10:09:11","modified_gmt":"2026-04-20T08:09:11","slug":"silicone-rtv-for-molding-feingosil-120","status":"publish","type":"product","link":"https:\/\/www.finres-sa.com\/en\/product\/silicone-rtv-for-molding-feingosil-120\/","title":{"rendered":"RTV2 Molding Silicone Shore A 20 \u2013 Silicone for Resin, Plaster, Wax Molds \u2013 FEINGOSIL 120 \u2013 2 Components"},"content":{"rendered":"\t\t<div data-elementor-type=\"product-post\" data-elementor-id=\"19736\" class=\"elementor elementor-19736 elementor-19580\" data-elementor-post-type=\"product\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2f0229e e-flex e-con-boxed e-con e-parent\" data-id=\"2f0229e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6791b06 elementor-widget elementor-widget-text-editor\" data-id=\"6791b06\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">FEINGOSIL 120 is a two-component RTV-2 condensation-cure silicone rubber. This molding silicone is designed for making flexible and precise molds, capable of faithfully reproducing the shape and surface of the parts to be replicated. <\/p><p>Easy to use, it is suitable for professionals as well as DIY or prototyping enthusiasts. Its application is simple and allows for the quick creation of reliable and precise molds. <\/p><p>Thanks to its very good tear resistance, this silicone allows for the manufacture of durable molds suitable for casting a wide variety of materials.<\/p><p>It is particularly appreciated by users looking for a high-performance silicone for making molds of objects with slight undercuts.<\/p><p>The same mold can be used several times to produce identical casts. This silicone is particularly suitable for reproducing technical parts, detailed items, or decorative elements, including certain glass pieces. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ecc0255 e-flex e-con-boxed e-con e-parent\" data-id=\"ecc0255\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-a9e78b9 e-grid e-con-boxed e-con e-child\" data-id=\"a9e78b9\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-f76ad45 e-con-full e-flex e-con e-child\" data-id=\"f76ad45\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-88dd57c elementor-widget elementor-widget-heading\" data-id=\"88dd57c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Recommended Applications<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3042fb elementor-widget elementor-widget-text-editor\" data-id=\"a3042fb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul data-pm-slice=\"3 1 []\"><li><p>Silicone molds for epoxy and polyurethane resin<\/p><\/li><li><p>Mold making for plaster, wax, or other materials<\/p><\/li><li><p>Molding of decorative objects or technical parts<\/p><\/li><li><p>Creative projects and DIY<\/p><\/li><li><p>Silicone adhesive for repairing or assembling silicone molds<\/p><\/li><\/ul><h2> <\/h2>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1d1a28e e-con-full e-flex e-con e-child\" data-id=\"1d1a28e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bbb30d8 elementor-widget elementor-widget-heading\" data-id=\"bbb30d8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Performance Benefits<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db3571a elementor-widget elementor-widget-text-editor\" data-id=\"db3571a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul data-pm-slice=\"3 3 []\"><li><p>Simple to use and quick to apply<\/p><\/li><li><p>Precise reproduction of details<\/p><\/li><li><p>Three working times available<\/p><\/li><li><p>Excellent tear resistance<\/p><\/li><li><p>Excellent self-adhesion<\/p><\/li><li><p>Compatible with many casting materials<\/p><\/li><li><p>Compatible with <a href=\"https:\/\/www.finres-sa.com\/en\/product\/clay-208\/\">clay<\/a> and <a href=\"https:\/\/www.finres-sa.com\/en\/product\/professional-plastiline-non-hardening-precision-modeling-clay-for-sculpture-molding-and-prototyping\/\">plastiline<\/a><\/p><\/li><li><p>Secure packaging<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bdb078e e-flex e-con-boxed e-con e-parent\" data-id=\"bdb078e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-76a2fae e-grid e-con-boxed e-con e-child\" data-id=\"76a2fae\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c8f6220 elementor-widget elementor-widget-heading\" data-id=\"c8f6220\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Application Instructions<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-083ceec e-grid e-con-boxed e-con e-child\" data-id=\"083ceec\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fe3c94a elementor-widget elementor-widget-text-editor\" data-id=\"fe3c94a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\"><strong>1.surface preparation<\/strong><\/p><p>Always ensure you apply a release agent: a layer of <a href=\"https:\/\/www.finres-sa.com\/en\/product\/varnish-polyurethane-g4\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>varnish<\/strong><\/a>\/ <strong><a href=\"https:\/\/www.finres-sa.com\/en\/product\/acmos-universal-release-spray\/\">spray release agent<\/a>\/vaseline or black soap<\/strong> to prevent the silicone from seeping into pores and adhering to the object.<\/p><p><strong>2. Formwork<\/strong><\/p><p>Build a frame completely surrounding the object, leaving a space of 4 to 10 mm to contain the silicone.<\/p><p>For formwork, we recommend using <a href=\"https:\/\/www.finres-sa.com\/en\/product\/professional-plastiline-non-hardening-precision-modeling-clay-for-sculpture-molding-and-prototyping\/\">plastiline<\/a>, plexiglass, polycarbonate, PVC, or formwork panels like Betonflex, often used in mold making.<\/p><p>Ensure the frame is perfectly sealed to prevent any leaks.<\/p><p>Don&#8217;t forget to fix the base of the object to be reproduced to prevent the silicone from getting underneath and making the object float to the surface.<\/p><p><strong>3.mixing silicone + catalyst<\/strong><\/p><p>In a clean, dry container, weigh the required amount of silicone and add 5% catalyst<br>(example: 100 g silicone + 5 g catalyst).<\/p><p>Mix the two components thoroughly with a spatula until a uniform color is achieved.<\/p><p>If mixing mechanically, work at low speed (300 to 500 rpm) for 2 to 3 minutes, keeping the mixer head submerged to limit air bubble incorporation.<\/p><p><strong>4.pour the silicone<\/strong><\/p><p>Pour the silicone in a thin stream at the lowest point of the mold.<\/p><p>You can also apply a first layer with a brush to cover details thoroughly, then fill the rest of the mold as needed for the application.<\/p><p><strong>5.curing<\/strong><\/p><p>Allow the silicone to harden at room temperature.<\/p><p>Demolding can generally be done the next day.<\/p><p>Make sure not to move the frame during this phase to avoid any mold deformation.<\/p><p><strong>6.Cleaning<\/strong><\/p><p>Tools can be cleaned once the silicone is dry.<br>Hardened silicone can usually be removed manually from instruments.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9b315c2 e-flex e-con-boxed e-con e-parent\" data-id=\"9b315c2\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-1dd6dcf e-grid e-con-boxed e-con e-child\" data-id=\"1dd6dcf\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e7d90cc elementor-widget elementor-widget-heading\" data-id=\"e7d90cc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Technical specifications<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8dd4c4e e-grid e-con-boxed e-con e-child\" data-id=\"8dd4c4e\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eae5c10 elementor-widget elementor-widget-text-editor\" data-id=\"eae5c10\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul data-pm-slice=\"3 5 []\"><li><p><strong>Type<\/strong>: RTV-2 condensation-cure molding silicone<\/p><\/li><li><p><strong>Mixing ratio<\/strong>: 5% catalyst (e.g.: 100 g silicone + 5 g catalyst E)<\/p><\/li><li><p><strong>Appearance<\/strong>: viscous liquid<\/p><\/li><li><p><strong>Hardness (Shore A)<\/strong>: 20<\/p><\/li><li><p><strong>Pot life at 23 \u00b0C<\/strong>:<\/p><ul><li><p>10 min with <strong>Fast<\/strong> catalyst<\/p><\/li><li><p>30 min with <strong>Standard<\/strong> catalyst<\/p><\/li><li><p>90 min with <strong>Slow<\/strong> catalyst<\/p><\/li><\/ul><\/li><li><p><strong>Demolding time<\/strong>:<\/p><ul><li><p>2 h with <strong>Fast<\/strong> catalyst<\/p><\/li><li><p>6 h with <strong>Standard<\/strong> catalyst<\/p><\/li><li><p>Minimum 24 h with <strong>Slow<\/strong> catalyst<\/p><\/li><\/ul><\/li><li><p><strong>Viscosity<\/strong>: 25,000 mPa\u00b7s<\/p><\/li><li><p><strong>Density<\/strong>: 1.14 g\/cm\u00b3<\/p><\/li><li><p><strong>Color (uncatalyzed)<\/strong>: white<\/p><\/li><li><p><strong>Color with Fast\/Standard\/Slow catalyst<\/strong>: red\/purple\/blue<\/p><\/li><li><p><strong>Elongation at break<\/strong>: 550%<\/p><\/li><li><p><strong>Linear shrinkage<\/strong>: &lt; 0.7%<\/p><\/li><li><p><strong>Shelf life<\/strong>: 12 months in original packaging, between 5 \u00b0C and 25 \u00b0C<\/p><\/li><li><p><strong>Packaging<\/strong>: silicone + catalyst kits<\/p><ul><li><p>1 kg + 50 g<\/p><\/li><li><p>5 kg + 250 g<\/p><\/li><li><p>20 kg + 1 kg<\/p><\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-15dfb22 e-flex e-con-boxed e-con e-parent\" data-id=\"15dfb22\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-992b6e2 e-grid e-con-boxed e-con e-child\" data-id=\"992b6e2\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6b00a28 elementor-widget elementor-widget-heading\" data-id=\"6b00a28\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Related products<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7244dfc elementor-widget elementor-widget-text-editor\" data-id=\"7244dfc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul data-pm-slice=\"3 3 []\"><li><p><a href=\"https:\/\/www.finres-sa.com\/en\/product\/acmos-universal-release-spray\/\" target=\"_blank\" rel=\"noopener noreferrer\">Spray Release Agent: <\/a>Facilitates demolding and protects the mold surface. It prevents silicone from adhering to certain surfaces or porous materials. <\/p><\/li><li><p>T<a href=\"https:\/\/www.finres-sa.com\/en\/product\/finsil-134-thixo-polycondensation\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>hixotropic agent<\/strong><\/a><strong>: <\/strong>Added to the mix (A+B) to adjust its texture. This allows you to apply a layer of silicone without it running off the mold surface. Mixing ratio: Add 1 to 2% thixo to the A+B silicone mix.  <\/p><\/li><li><p><a href=\"https:\/\/www.finres-sa.com\/en\/product\/universal-pigment\/\">Silicone pigment<\/a>: Tints the silicone mass to make identifying molds easier or to achieve a specific visual effect.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-23ed659 e-flex e-con-boxed e-con e-parent\" data-id=\"23ed659\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-10fb574 e-grid e-con-boxed e-con e-child\" data-id=\"10fb574\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-40d970c elementor-widget elementor-widget-heading\" data-id=\"40d970c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Safety<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb2046e elementor-widget elementor-widget-text-editor\" data-id=\"cb2046e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p data-pm-slice=\"1 1 []\">Work in a well-ventilated area and wear protective gloves. Avoid prolonged contact with skin and eyes. <\/p><p>Skin contact:<br>Wash thoroughly with soap and water. Remove and wash contaminated clothing. Consult a doctor if irritation or rash occurs.  <\/p><p>Eye contact:<br>Rinse thoroughly with running water for several minutes. Consult a doctor if irritation persists. <\/p><p>If necessary, consult the product safety data sheet for detailed information on handling and chemical structure.<\/p><p>These recommendations are part of best practices for handling molding silicones.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p data-pm-slice=\"1 1 []\">FEINGOSIL 120 is a two-component RTV-2 molding silicone with condensation curing.<br \/>\nIts Shore A 20 hardness is ideal for making flexible and precise molds, suitable for casting resin, plaster, or wax with low undercuts.<\/p>\n","protected":false},"featured_media":26133,"template":"","meta":[],"product_brand":[],"product_cat":[1002,1491,1724,1806],"product_tag":[],"class_list":{"0":"post-19736","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-news","7":"product_cat-silicone-molding","8":"product_cat-silicone-polycondensation-en","9":"product_cat-special-offers","11":"first","12":"outofstock","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-variable"},"_links":{"self":[{"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product\/19736","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product\/19736\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/media\/26133"}],"wp:attachment":[{"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/media?parent=19736"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product_brand?post=19736"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product_cat?post=19736"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product_tag?post=19736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}