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  • Homemade Silicone O-rings and Tubing

    I made this instructable back in 2010, and I didnt see your comment until just now. Had a hearty laugh at the spaghetti video. Wish I could have seen it sooner!

    Thanks for the comment! I concur with the icemaker tubing. I tried to go large with PEX tubing, and the silicone bonded to it permanently, LOL, however it did cure solid to my surprise.Im curious to know your method for measuring the vapor permeability, and what your measurements mean, I would love to know more about the chemistry too. Thanks!Chris

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  • Homemade silicone O-rings and tubing

    Hello! I'm not sure what you mean by multiple lumen?

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  • Homemade silicone O-rings and tubing

    Just shooting from the hip, sounds like the silicone wasn't cured all the way, or the silicone wasn't the 100% silicone type. I've seen silicone that is labelled 100% silicone, but its actually the substandard type II. The type II just wont work with this method.Also, was the tubing clear Vinyl? The downside to my method is the long cure time. I almost always make the hollow tubing now because the cure is much faster. The hollow tubing, once cured, can be filled with more silicone (while still in the vinyl tubing for support) to speed up the hollow tubing cure even more, I will let the air compressor bleed air very slowly through the tubing. An aquarium air pump might be perfect for this, it puts fresh air through all that uncured silicone and pushes out the stinky acetic acid vapors. O...

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    Just shooting from the hip, sounds like the silicone wasn't cured all the way, or the silicone wasn't the 100% silicone type. I've seen silicone that is labelled 100% silicone, but its actually the substandard type II. The type II just wont work with this method.Also, was the tubing clear Vinyl? The downside to my method is the long cure time. I almost always make the hollow tubing now because the cure is much faster. The hollow tubing, once cured, can be filled with more silicone (while still in the vinyl tubing for support) to speed up the hollow tubing cure even more, I will let the air compressor bleed air very slowly through the tubing. An aquarium air pump might be perfect for this, it puts fresh air through all that uncured silicone and pushes out the stinky acetic acid vapors. Once the hollow tubing cures, say overnight, the silicone you pump through it will cure pretty fast,a day or two tops, my thought is that the cured silicone helps cure the uncured silicone.Best of luck, hope this helps you!

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  • How to Double Scrollsaw Blade Life!

    This is a fantastic idea! I was wondering if the blade was more stable because of how close it is to the strut, and also because the riser holds it in place?

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