Smooth Thi-Vex Silicone Thickening Agent - 1 oz. Bottle

I don't need to use it that often so a bottle will last me for years. Yes it still works well after a few years after opening. A little goes a long way. Add some drops to your silicone and stir it, in a few seconds you will know if it has thickened enough. If not, add a bit more. I like using it for brush on molds. I put a thin layer of silicone (without the thivex added) and then add the thivex thickened layers until I have the desired thickness (let it cure about 75%-90% before adding more layers) It will save you a lit of money in the end especially on large molds and prototypes. I am a big fan of thivex. Note: this is for platinum cured silicones. I have used it with tin cured silicones and unfortunately it never thickened it.

don't need much this stuff works fast too. Add a drop or two to your mix and after a few seconds of mixing it will be nice and thick. add a few more if you didn't get it to the thickness you need.

Works like a champ. Thickens workable silicone without affecting shore hardness in the end.

Really needed this for a project. To my surprise it arrived super early and worked well with the rebound 25 I used it with.

This product works well and thickens as it says it does. A little drop or two goes a long way…