pyrodoc Posted October 6, 2015 Share Posted October 6, 2015 Hi, Can we use CPVC pipe for making a roman candle. Diwali festival is coming and want to make roman candle. I am not getting much time to roll paper tubes. hdpe is best of course. But, considering the low amount of lift Charge is CPVC usable. Doc Link to comment Share on other sites More sharing options...
Arthur Posted October 6, 2015 Share Posted October 6, 2015 I think you'd be a lot safer looking thoroughly for a supply of suitable tubes. 1 Link to comment Share on other sites More sharing options...
rogeryermaw Posted October 6, 2015 Share Posted October 6, 2015 http://www.amateurpyro.com/forums/gallery/image/2832-pvc/ that said, if you must, wrap it in something that will stop it from becoming a shrapnel bomb. several layers of strapping tape or similar. but no, i would not recommend it. just remember: PVC WILL NOT SHOW UP ON YOUR X-RAY Link to comment Share on other sites More sharing options...
Mike Posted October 6, 2015 Share Posted October 6, 2015 It will shatter just like pvc. Also roman cadles develop a lot of heat, which will melt the tube before finishing all shoots. 1 Link to comment Share on other sites More sharing options...
stix Posted October 7, 2015 Share Posted October 7, 2015 ... Also roman cadles develop a lot of heat, which will melt the tube before finishing all shoots. That was my first thought. Link to comment Share on other sites More sharing options...
Col Posted October 7, 2015 Share Posted October 7, 2015 Traditional candles with a delay comp between stars/inserts get silly hot. The visco timed delay/ sawdust type run cooler but I still wouldnt risk using pvc. Link to comment Share on other sites More sharing options...
pyrodoc Posted October 7, 2015 Author Share Posted October 7, 2015 Will stick to card board or hdpe Link to comment Share on other sites More sharing options...
Mike Posted October 7, 2015 Share Posted October 7, 2015 Cardboard. HDPE tubes shrink during heating. Link to comment Share on other sites More sharing options...
MondoMage Posted October 23, 2015 Share Posted October 23, 2015 just remember: PVC WILL NOT SHOW UP ON YOUR X-RAY This is incorrect. PVC pipe has binders and other additives that *do* show up in X-rays, not nearly as well as bone or other material but it does show up. See the article HERE. However, that's not to say that using PVC pipes in place of a paper tube is a safe thing to do. Link to comment Share on other sites More sharing options...
MrB Posted October 26, 2015 Share Posted October 26, 2015 This is incorrect. PVC pipe has binders and other additives that *do* show up in X-rays, not nearly as well as bone or other material but it does show up. See the article HERE. However, that's not to say that using PVC pipes in place of a paper tube is a safe thing to do.I carry around pp plastics from an explosive-accident back when i was a late teenager. Mostly in my left hand, some in my abdomen, and a single thing in my left nutsack. (Well, those are the ones i know about.)Back when the accident happened, they weren't able to get good enough images on the x-ray, to do anything about it. Good thing it's mostly cosmetic at this point.What i'm trying to say is, even if they can get some shades on the x-rays, and remember... The bits i'm carrying with me isn't more then a couple of mm in size. While tubes and fittings may show up, fragments are a bit more... difficult. But to each his own. If you think PVC is a good idea... Nothing we say can over-rule, or convince you anyway.B! Link to comment Share on other sites More sharing options...
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