{"id":8933,"date":"2023-06-26T18:15:32","date_gmt":"2023-06-26T16:15:32","guid":{"rendered":"https:\/\/finres-sa.com\/produit\/silicone-h-t-kit\/"},"modified":"2026-04-20T11:22:35","modified_gmt":"2026-04-20T09:22:35","slug":"silicone-h-t-kit","status":"publish","type":"product","link":"https:\/\/www.finres-sa.com\/en\/product\/silicone-h-t-kit\/","title":{"rendered":"RTV Condensation High Temperature Silicone 330 \u00b0C for Metal Moulding and Casting \u2013 Tin & Lead"},"content":{"rendered":"\t\t
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HT Silicone is a two-component RTV-2 silicone rubber that cures by condensation.<\/p>

This silicone rubber elastomer offers excellent resistance to heat and deformation. Fluid and easy to use, it allows for precise reproduction and is perfect for making technical molds. <\/p>

Suitable for casting low-melting-point metals (tin, lead, etc.), its high hardness is ideal for simple molds with few undercuts.<\/p>

This silicone is recommended for limited runs and is compatible with certain suitable resins. It is not compatible with thixotropic agents. <\/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

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High-Temperature RTV Silicone Applications<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Jewelry and accessories:<\/strong> rings, bracelets, pendants, earrings, engraved medallions.
Miniatures and figurines:<\/strong> figurines (fantasy, soldiers, wargames), statuettes, scale models (cars, planes, boats).
Model making and scale models:<\/strong> wheels, gears, model train parts, diorama elements, weapon replicas.
Decoration:<\/strong> handles, furniture knobs, sculptures, bas-reliefs, frame and mirror ornaments, decorative weights.
Utility objects:<\/strong> antique keys and locks, hinges, fittings, measuring weights, brackets and fasteners.
Goodies:<\/strong> tokens, keychains, mini trophies, medals.<\/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

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Application Instructions<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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1. Surface preparation<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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If the surface of the model to reproduce is porous (wood\/plaster\/ceramic\/etc.), it\u2019s recommended to apply a coat of varnish<\/a>, a release agent<\/a>, or a release wax to prevent any sticking. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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2. Formwork<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Build a formwork around the object to reproduce and make sure to leave enough space to hold the silicone (wall thickness between 4 and 10 mm).<\/p>

Carefully check the formwork is watertight to avoid any disaster.<\/p>

Make sure the object is firmly fixed to the base to prevent it from moving or floating during pouring.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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3. Ratio & mixing<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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In a clean, dry container, weigh out the quantity of silicone required and calculate an addition of 5% catalyst (e.g.: 100gr silicone + 5gr catalyst).<\/p>

Using a spatula, mix the two components until you obtain a HOMOGENEOUS paste.<\/p>

With mechanical assistance, keep the speed low (300 to 500 rpm) for 2 to 3 minutes and keep the mixer head in the silicone to limit the incorporation of air bubbles. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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4. Pouring silicone<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Aim for the lowest point and pour the silicone in a thin vein.<\/p>

The first coat can be applied directly with a brush, then the rest of the mold can be filled.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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5. Hardening<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Allow the silicone to harden at room temperature. You can unmold the next day.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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6. Cleaning<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Do not try to clean liquid silicone; it’s best to peel it off tools once it’s dry.<\/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

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Technical specifications<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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  • Mixing ratio: 5% (e.g.: 100 g of silicone + 5 g of Catalyst)<\/p><\/li>

  • Color: red-brown silicone rubber<\/p><\/li>

  • Hardness (Shore A): 60<\/p><\/li>

  • Pot life at 23\u00b0C: 90 min.<\/p><\/li>

  • Demoulding: 24h<\/p><\/li>

  • Density (g\/cm\u00b3): 1.44<\/p><\/li>

  • Viscosity (mPa.s): 10000<\/p><\/li>

  • Linear shrinkage (%): < 0.7<\/p><\/li>

  • Filler: contains iron oxide<\/p><\/li>

  • Shelf-life: 12 months in original packaging between 5\u00b0C and 25\u00b0C.<\/p><\/li>

  • Packaging: sold by kit (A+B): 200gr + 10gr\/ 1kg + 50 gr\/ 5kg +200gr<\/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

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    Safety<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    • Wear gloves and work in a ventilated area<\/p><\/li>

    • Skin: wash with soap and water<\/p><\/li>

    • Eyes: rinse thoroughly (risk of severe eye irritation)<\/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<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

      HT silicone is specially designed to withstand high temperatures, enabling the casting of low-melting metals such as tin and lead.<\/span><\/p>\n","protected":false},"featured_media":7771,"template":"","meta":[],"product_brand":[],"product_cat":[1002,1491,1724],"product_tag":[434,558,361,435,429,555],"class_list":{"0":"post-8933","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_tag-cast","10":"product_tag-high-temperature","11":"product_tag-molding","12":"product_tag-prototype-en","13":"product_tag-show","14":"product_tag-silicone-en","16":"first","17":"instock","18":"taxable","19":"shipping-taxable","20":"purchasable","21":"product-type-variable","22":"has-default-attributes"},"_links":{"self":[{"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product\/8933","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\/8933\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/media\/7771"}],"wp:attachment":[{"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/media?parent=8933"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product_brand?post=8933"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product_cat?post=8933"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.finres-sa.com\/en\/wp-json\/wp\/v2\/product_tag?post=8933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}