ScottyMac Posted February 10, 2016 Report Share Posted February 10, 2016 Hi There, New to the board, kind of wish I found it prior to making the investment as I had no idea how dangerous it could be. But since then I have gotten all the necessary protective gear. My question may seem silly but can it be too cold to pour? I'll be in the garage using an injector and aluminum molds. All for personal use. I saw on the stickie for newbies to avoid placing hot pyrex on cold surfaces, anything else I should be aware of? Thanks, ScottyMac Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted February 10, 2016 Report Share Posted February 10, 2016 Welcome to TU. It is important to read through all the stickies for information on safety. The Pyrex thing is more about metallic surfaces that conduct heat. A cold, DRY wooden surface should be a lot safer. You should consider getting away from Pyrex. A lot of members use a plastic jug. I cannot remember the name of the jug, but if you do a search for 'Pyrex', you should find the jug mentioned. Dave 1 Quote Link to comment Share on other sites More sharing options...
jboquet23 Posted February 10, 2016 Report Share Posted February 10, 2016 This weekend was the first time I shot my molds in the cold weather. I did find that my first couple of baits dented a little. After my mold warmed, I didn't have a problem. I am fairly new at this myself, and I'm assuming that the plastic may have been cooling off a little to fast when injecting into a really cold mold. Quote Link to comment Share on other sites More sharing options...
ScottyMac Posted February 10, 2016 Author Report Share Posted February 10, 2016 Thank you both. Quote Link to comment Share on other sites More sharing options...
mark poulson Posted February 11, 2016 Report Share Posted February 11, 2016 Welcome to TU. It is important to read through all the stickies for information on safety. The Pyrex thing is more about metallic surfaces that conduct heat. A cold, DRY wooden surface should be a lot safer. You should consider getting away from Pyrex. A lot of members use a plastic jug. I cannot remember the name of the jug, but if you do a search for 'Pyrex', you should find the jug mentioned. Dave The silicone pouring jugs are Norpro. I get mine here, in the 4 cup size: http://www.amazon.com/Norpro-4-Cup-Silicone-Flexible-Measuring/dp/B002MKP24K/ref=sr_1_1?s=kitchen&ie=UTF8&qid=1455151284&sr=1-1&keywords=norpro+silicone+cups You can pinch the top off with a big metal paper clip to make a smaller pour spout. They are flexible, and the plastic is hot, so use heat-protecting gloves, and care. And don't try to hand pour with them over half full. You can fill and injector with them almost full, but not hand pour. 2 Quote Link to comment Share on other sites More sharing options...
fishon-son Posted February 11, 2016 Report Share Posted February 11, 2016 I'm in Michigan and DONT do any plastics in the winter..i to use my garage to.. but , you got to have ventilation....so my door is wide open and the windows opened too....way to cold for me......about mid april is my starting time then I go gang busters ... Quote Link to comment Share on other sites More sharing options...
fishon-son Posted February 11, 2016 Report Share Posted February 11, 2016 The silicone pouring jugs are Norpro. I get mine here, in the 4 cup size: http://www.amazon.com/Norpro-4-Cup-Silicone-Flexible-Measuring/dp/B002MKP24K/ref=sr_1_1?s=kitchen&ie=UTF8&qid=1455151284&sr=1-1&keywords=norpro+silicone+cups You can pinch the top off with a big metal paper clip to make a smaller pour spout. They are flexible, and the plastic is hot, so use heat-protecting gloves, and care. And don't try to hand pour with them over half full. You can fill and injector with them almost full, but not hand pour. thanks mark...was looking for these....funny Walmart don't have them...lol Quote Link to comment Share on other sites More sharing options...
ScottyMac Posted February 11, 2016 Author Report Share Posted February 11, 2016 Thanks all, I'll check them out. Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted February 11, 2016 Report Share Posted February 11, 2016 Thanks for the rescue Mark Dave 1 Quote Link to comment Share on other sites More sharing options...
Frank Posted February 11, 2016 Report Share Posted February 11, 2016 The Pyrex thing is not as bad as most make out and using those silicone cups get soft and don't have a good base. Worried about tipping them over more than breaking a Pyrex. To help out with a place to put your Pyrex I use a griddle to put all the hot plastic on this way you will always know where it goes. Help keep the heat up too. 2 Quote Link to comment Share on other sites More sharing options...
Jig Man Posted February 11, 2016 Report Share Posted February 11, 2016 You can buy silicone cups from Bed Bath and Beyond but don't. I did and they were not suitable for hot plastic. I returned them got the ones like Mark showes. Quote Link to comment Share on other sites More sharing options...
smallmouthaholic Posted February 11, 2016 Report Share Posted February 11, 2016 I.M.O. and experience, the Norpro silicone cups( which I have and used) are an accident waiting to happen. These cost more but won't shatter when exposed to quick heating and quick cooling- http://www.containerstore.com/s/kitchen/food-prep/mixing-measuring/borosilicate-glass-measuring-cups/123d?productId=10000652 2 Quote Link to comment Share on other sites More sharing options...
Frank Posted February 11, 2016 Report Share Posted February 11, 2016 I.M.O. and experience, the Norpro silicone cups( which I have and used) are an accident waiting to happen. These cost more but won't shatter when exposed to quick heating and quick cooling- http://www.containerstore.com/s/kitchen/food-prep/mixing-measuring/borosilicate-glass-measuring-cups/123d?productId=10000652 Do you use these? Being thin do they loose a lot of heat fast? Quote Link to comment Share on other sites More sharing options...
mark poulson Posted February 11, 2016 Report Share Posted February 11, 2016 The Pyrex thing is not as bad as most make out and using those silicone cups get soft and don't have a good base. Worried about tipping them over more than breaking a Pyrex. To help out with a place to put your Pyrex I use a griddle to put all the hot plastic on this way you will always know where it goes. Help keep the heat up too. Frank, you are master of all things plastic pouring, so this isn't a "you're wrong" post. For the rest of us mere mortals, silicone cups are more convenient, hold heat longer, and require the same kind of common sense handling as is required when using Pyrex, like "Don't drop!". I have spilled a silicone cup....once. I have also had a pyrex cup break....once. Stuff happens, so we need to pay attention, no matter how we melt our plastic. 300+ degree plastic is very dangerous. 2 Quote Link to comment Share on other sites More sharing options...
Frank Posted February 11, 2016 Report Share Posted February 11, 2016 It wasn't about a you are wrong thing but there are goods and bads on both sides of things. A hot Pyrex cup has a handle to use when hot which keep your hand to the side. The silicone cups do not and when heated they get soft. Not a big deal until you try and take it out of the microwave and it squeezes together. Being silicone it is slippery and slides out of your grasp. Does it tip over or fall to the ground? Either one is not good. Know what you are getting into and it will be a lot safer. 2 Quote Link to comment Share on other sites More sharing options...
smallmouthaholic Posted February 11, 2016 Report Share Posted February 11, 2016 (edited) Do you use these? Being thin do they loose a lot of heat fast? They are extremely flimsy- beyond flexible.I used to use them for mixing but as you know,I'm a fan of the Shooting Star System.All my plastic is heated in borosilicate measuring cups then poured into the s.s. system. Edited to add: Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion , making them resistant to thermal shock, more so than any other common glass. Edited February 11, 2016 by smallmouthaholic Quote Link to comment Share on other sites More sharing options...
rcbv Posted February 11, 2016 Report Share Posted February 11, 2016 I was surprised to learn that Pyrex glassware sold in the USA is no longer made from Borosilicate glass but made from tempered glass. 1 Quote Link to comment Share on other sites More sharing options...
smallmouthaholic Posted February 11, 2016 Report Share Posted February 11, 2016 I was surprised to learn that Pyrex glassware sold in the USA is no longer made from Borosilicate glass but made from tempered glass. That's why they can spider web,fragment and explode-all in a matter of seconds. Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion , making them resistant to thermal shock, more so than any other common glass. http://www.snopes.com/food/warnings/pyrex.asp http://lajollamom.com/pyrex-glassware-explodes/ Quote Link to comment Share on other sites More sharing options...
Cami Posted February 11, 2016 Report Share Posted February 11, 2016 It wasn't about a you are wrong thing but there are goods and bads on both sides of things. A hot Pyrex cup has a handle to use when hot which keep your hand to the side. The silicone cups do not and when heated they get soft. Not a big deal until you try and take it out of the microwave and it squeezes together. Being silicone it is slippery and slides out of your grasp. Does it tip over or fall to the ground? Either one is not good. Know what you are getting into and it will be a lot safer. Dear Frank, what do you think about Dexas silicone cup (or similar) with a plastic microwaveable handle, please? http://www.amazon.co.uk/Dexas-2-Cup-Collapsible-Measuring-Cup/dp/B001QGGN26 I use it from several years, but at same time I pour a very little percentage of times compared to your production, for this reason I would like to know your opinion about its feasibility during a frequent use. Bye Cami Quote Link to comment Share on other sites More sharing options...
Frank Posted February 11, 2016 Report Share Posted February 11, 2016 That one looks a lot better with a handle for sure. Base is a little on the small size but a vast improvement over the other one in this post. Tempered glass is very unstable product but used in the right way it is just as safe. Next time you drive your car look the the left and next to your face is tempered glass just waiting to EXPLODE!!! Do you wear safety glasses and long sleeves while driving. I know its not full of hot plastic but sometimes it's full of your family. Quote Link to comment Share on other sites More sharing options...
Cami Posted February 11, 2016 Report Share Posted February 11, 2016 ... ehm, really I do worst: I usually wear tempered sunglasses, also during driving and in Europe it is forbidden Bye Cami Quote Link to comment Share on other sites More sharing options...
FATFLATTIE Posted February 12, 2016 Report Share Posted February 12, 2016 Dear Frank, what do you think about Dexas silicone cup (or similar) with a plastic microwaveable handle, please? http://www.amazon.co.uk/Dexas-2-Cup-Collapsible-Measuring-Cup/dp/B001QGGN26 I use it from several years, but at same time I pour a very little percentage of times compared to your production, for this reason I would like to know your opinion about its feasibility during a frequent use. Bye Cami It says in the description that it is only heat resistant to 250 degrees so that seems like it wouldn't work. Quote Link to comment Share on other sites More sharing options...
Cami Posted February 12, 2016 Report Share Posted February 12, 2016 250°C Bye Cami Quote Link to comment Share on other sites More sharing options...
RayburnGuy Posted February 12, 2016 Report Share Posted February 12, 2016 (edited) Product Description This silicone measuring cup is handy and easy to use. Very easy to expand and collapse, the bowl holds 2 cups/.5 litres, and has incremental measures in liquid ounces and cups as well as metric ml measures. Lightweight and easy to lift and pour, this cup features a non-drip spout and is heat resistant to 250 degrees farenheit. It is also dishwasher and microwave safe! I don't pour plastics, but would hate to see anyone get injured because of a simple mistake. Ben Edited February 12, 2016 by RayburnGuy Quote Link to comment Share on other sites More sharing options...
Cami Posted February 12, 2016 Report Share Posted February 12, 2016 Dear Ben, you are right and Amazon, perhaps, it is wrong: http://www.petersofkensington.com.au/Public/Dexas-Silicone-Measuring-Cup-250ml.aspx Anyway, as I have already said, I am using it from several years ... with plastisol and it works without problems. I asked to Frank what he thinks about it with a frequent use, because I have to suggest it to an Italian Pourer that works every day (instead I pour monthly .. if I can). Bye Cami 1 Quote Link to comment Share on other sites More sharing options...
