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hot knife buying advice?
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Home › Forums › Gear Forums › Make Your Own Gear › hot knife buying advice?
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Mar 25, 2009 at 3:18 pm #1488782
By accident I recently discovered that a simple snap-blade box knife works better than a roller cutter on silnylon. Surprise. Searing is rarely very useful and there is always the danger of melting lightweight fabric too far.
Mar 25, 2009 at 8:48 pm #1488875I think the issue of blade losing heat quickly can be addressed by using a hotter (watt++) knife. Heat loss is proportional to area of contact. When using a knife edge vs knife tip, you either need a MUCH hotter knife or you cut slowly. Hot knife like the ones used by professionals for cutting synthetics are hotter and also much more expensive.
>That way it either cuts due to the heat or not at all.
Thats a good trick.
Mar 25, 2009 at 9:12 pm #1488880Joe, thanks for sharing this interesting info.
Mar 27, 2009 at 10:31 am #1489223Chris, I have used an impulse sealer similar to the one you link to at Harbor Frieght to seal tyvek. It does work. Tyvek is a PE and heat seals easily.
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