{"product_id":"thi-vex-thixotropic-agent-for-thickening-smooth-on-silicone-rubbers","title":"THI-VEX Thixotropic Agent for Thickening Smooth-On Silicone Rubbers","description":"\u003cp\u003eIn this review of THI-VEX the bottom line is simple: it is a focused tool for makers who need to turn pourable Smooth-On silicones into brushable, vertical-surface mixes. The product is intended for artists, model makers, and mold makers who want to build brush-on molds without sagging or waste. THI-VEX thickens by volume-percentage of Part A, mixes into Parts A and B, and delivers reliable increases in viscosity when used correctly, making it the go-to accessory when a little thickener prevents a lot of mess.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickening Liquid:\u003c\/strong\u003e Specifically formulated to turn Smooth-On silicone rubbers into a brushable consistency for vertical surfaces and detail work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Viscosity:\u003c\/strong\u003e Different thicknesses are achieved simply by varying the percentage added to Part A, allowing control over the application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush-On Mold Use:\u003c\/strong\u003e Enables building up layers on molds and models without significant sagging, which is essential for layered brush techniques.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Amount Required:\u003c\/strong\u003e Only a small percentage of THI-VEX is needed to alter viscosity, so a pint stretches across multiple projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMixes with Parts A and B:\u003c\/strong\u003e When thoroughly blended with both components it maintains silicone cure behavior while increasing body for vertical application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eTHI-VEX is best for hobbyists and professional mold makers working with Smooth-On silicones who need a predictable way to make brushable, non-sagging coats. If you frequently build brush-on molds for prototypes, sculpture, or tooling, it streamlines work by preventing waste and enabling controlled layering.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere are users of Mold Max 40 or Mold Max 60, because THI-VEX does not work with those specific silicone formulations. Also, if you only pour molds or never brush silicone on vertical surfaces, a thixotropic agent may be unnecessary.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEffective at increasing viscosity so brush coats stay in place and reduce sagging.\u003c\/li\u003e\n\u003cli\u003eEasy to use when added as a percentage of Part A and thoroughly mixed into Parts A and B.\u003c\/li\u003e\n\u003cli\u003eHigh material quality noted by users, helping to avoid wasted silicone during application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot compatible with Mold Max 40 or Mold Max 60, limiting use with those silicone lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct name\u003c\/td\u003e\n\u003ctd\u003eTHI-VEX Thixotropic Agent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eThickening Smooth-On silicone rubbers for brush-on molds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormulation role\u003c\/td\u003e\n\u003ctd\u003eAdded as percentage of Part A; mixes with Parts A and B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility note\u003c\/td\u003e\n\u003ctd\u003eDoes not work with Mold Max 40 or Mold Max 60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContainer size\u003c\/td\u003e\n\u003ctd\u003ePint bottle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical benefit\u003c\/td\u003e\n\u003ctd\u003eEnables vertical surface application and reduced waste\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eTHI-VEX is a pragmatic, cost-effective thixotropic agent for anyone who needs to convert Smooth-On silicones into a brushable form. It delivers reliable thickness control with minimal material required, making it a good value for artists and mold makers who work on vertical or detailed surfaces. Avoid it only if you use Mold Max 40 or Mold Max 60 or never brush silicone.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use THI-VEX with any Smooth-On silicone?\u003c\/strong\u003e\u003cbr\u003eIt works with most Smooth-On silicones when added as a percentage of Part A, but it will not work with Mold Max 40 or Mold Max 60.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much THI-VEX should I add?\u003c\/strong\u003e\u003cbr\u003eDifferent viscosities are attained by varying the amount added to Part A; only a small percentage is typically required, and thorough mixing with Parts A and B is essential.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs THI-VEX suitable for brush-on molds?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed specifically for vertical surface application and building brush-on molds by preventing sag and waste.\u003c\/p\u003e","brand":"Smooth-On","offers":[{"title":"Default Title","offer_id":48646820462811,"sku":"B01ACAHUR8","price":33.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41RcM9pPINL._AC.jpg?v=1778608033","url":"https:\/\/gearmusthave.com\/products\/thi-vex-thixotropic-agent-for-thickening-smooth-on-silicone-rubbers","provider":"GearMustHave","version":"1.0","type":"link"}