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is there a way to make a soft object hard (e.g. soft plastic)?

some thing that you could brush on and let it harden?

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lemonie7 years ago
Resin - e.g. for glass-fibre, epoxy, varnish. L
animan1 (author)  lemonie7 years ago
would it work on plastic and if so how stiff would it get? does epoxy harden fast? is it cheap? help!
lemonie animan17 years ago
Paper is soft and flexible, like glass or carbon fibres, you can stiffen these up by impregnation with resin or glue. Plastic is different, what is it that you want to make? Epoxy can harden fast, and it can be cheap depending upon how much you need. L
ShahidulI2 years ago

hi i want to make a plastic box for my soft shell crab farm which will stay on salt water and under sun always.the color will be black.wel i read that pp is best for the box but i need too many boxes and also have to save money.so can someone tell me what i should do? There are 2 types of scrap pp hard and soft in the recycle market.but i dont think it will perform wel.so plz tell me what i should do?should i mix something with the low quality pp scrap ? I need the box strong and soft and last long under sun on water

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Z1ggy7 years ago
Glue? plaster of paris. Concrete......
animan1 (author)  Z1ggy7 years ago
what type of glue?? not plaster or concrete
PVA glue watered down a bit and brushed on will give paper quite a bit of stiffness.
animan1 (author)  AndyGadget7 years ago
it would also need to be light and could not shatter if it fell
animan1 (author)  AndyGadget7 years ago
what about fused plastic???? and how hard?