STARTSO WORLD Silicone Mold Making Kit 20A, 160OZ/10LB Pink Platinum Liquid Silicone Rubber for Mold Making, Fast Cure & Food Safe Silicone Mold Maker, Ideal for Casting Resin Molds/Silicone Molds

With careful handling you can achieve very good results with this product. I found it to be very suited to creating wax forms for casting in silver. It allows a lot of detail.

Keep buying for creat the baking mould

Really pleased with this. It was easy to use and did almost what it says on the tin. I had no difficulty using it. Although there were a few negatives.There is barely any odour from it. It stays pourable for a nice long time giving plenty of time to mix thoroughly and slowly pour a few castings. It is sufficiently forgiving of mix ratio that small batches can be done by eye in the measuring cups (in one place where I got some extra splashes of one part it didn't set properly, but this bit wiped off fairly easily). It was always set by the stated 6 hours. Once set it is very flexible and tough but also rigid enough to maintain its shape in use. It takes details extremely well - the features from an old European coin were taken clearly.I used a CNC to cut a pattern into a block of candle wax and then cast the silicone into that to make a mold for casting chocolate. The wax channels were 5mm wide and the silicone flowed well through them. First casting I dribbled the silicone along all the channels and especially into all the corners before letting it flow on it's own and it came out fine. Second time I poured at a single point (as recommended) and I ended up with a few voids where bubbles had formed. So experiment. I think my mold may be unusual in being thin channels. I did 3 castings from one wax pattern and 2 from another. They all released from the wax just fine without damaging the wax (without using any release agent). The 5mm channels in the wax are obviously the walls of the chocolate mold. These turned out to be thicker than is probably needed. I may have been better making them thinner (maybe 3mm). However the walls were still sufficiently flexible to allow me to extract 5mm outlines of chocolate without breakage. (I wish the chocolate had been as easy to cast !). With whatever was left I experimented with - pouring around various reentrant disk-like objects. In each case I managed to prise the object out and make an ice casting so this seems a viable technique for duplicating things.The down sides.The seal on part A was not fully attached (as other people have said). Fortunately the top was tight so no spill, but this could have been a disaster.It comes with pipettes - these are useless because it is so viscous (it takes 10 seconds to fill one and then it does not fully empty, so useless for by-volume and too slow for by-mass except for tiny amounts). But measuring out with the cups is good enough.I found it impossible to do a thorough job of mixing without trapping tiny bubbles and these were reluctant to settle out, although mostly the surfaces of the mold did not suffer due to it.After 6 hours setting it is still "sticky" (not tacky, just a bit grippy) but washing in hot water soon sorts that (maybe the heat accelerates the curing). In any case I waited another 12 hours and several washes in boiling water before using with food.

I felt very nervous that the good reviews on here might be fake as this product is half the price of a well known brand platinum silicon - I also felt nervous because some people say the product didn’t cure and if that was the case I would have lost my clay work.I meticulously measured 50-50. And I thoroughly mixed the contents around the mixing cup - scraping the walls anndctsking my time. and I made sure my mould was in a room that was above 18 degrees.6 hours later I have a fully cured lovely looking mould. The measuring cups are small but I mixed 3 batches of 200ml at a time. My mould took three small batches.To avoid any bubbles pour the silicon from a height very slowly. The small ribbon that falls from your cup stretches out any air bubbles as you pour.Take your time follow the instructions and this is a very good value product.

Placed Nylon 3D printed items onto clean glass plate, using double sided tape, and taped a mould retainer around the outside, and placed on perfectly level surface.Mixed 50/50 by weight or by volume, it's more or less same and had a beautiful turquoise coloured liquid. Poured gently and slowly around items ensuring all the lowest nooks and crannies covered.The resultant mould is lovely and after a little clean up to remove flashing I am sure will be fine.Very runny, and will find the smallest gaps and textures. Ensure all is clean. Doesn't like double sided tape adhesive, as these areas stayed liquid/gooey, but luckily for me these were not critical area of the mould.Will bubble and degas as it reacts and sets, and have spotted one teeny tiny bubble in a non significant area.Anyway ... quite impressed so far, not bad for the first mould

Does what It says on bottle sets well and bubbles are minimal.

Bought for my daughter to make sugar glass bottles for her theatre course, really easy to mix and use, will definitely be buying again.

A nice little kit to get small jobs done simply.Bottles mix 50/50 and a long cure time allows you to mix well and poor slow and high to minimise bubbles.The cups are a good size for small casts, and you get 4 that is enough to use them as the mould also. They are packed in 's and tight to the bottle so one of was cracked at the base, but I still had three to keep me going.Lollipop sticks are great for mixing and staging the poor, but didn't use the cover gloves as it was two thin.