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Question by Fungyi: Can i get solvent-melted polystyrene from model kits to cure as hard as before I melted it?
I’ve been making some plastic coatings for wood by dissolving polystyrene (from plastic model kits) into paint thinner in room temperature. So far, i’ve brushed a number of layers throughout one week to accumulate a solidified film, thickness of about .25 millimeters. However, i noticed that my melted polystyrene is no where as hard (resistence to deformation/tensile strength) as before i melted it…

Do solvents degrade a plastic by ~entering~ it? In my case, do the solvents EVER fully evaporate? Even if i bake it, will my solvent-melted plastic ever be as strong as the injection-molded version?

…i scrapped some old projects with acrylic lacquer paints on it painted YEARS ago, & i could still dent the film with just my FINGER NAILS. On the other hand, the same kind of paint required a KNIFE to scrap off its bottle after only months of opening it. What’s the deal?

ps please don’t suggest to use something other than polystyrene; i’m interested in polystyrene only
the outcome i’m looking for is simply the hardest coating i can get to cover wood

Best answer:

Answer by David W
the polystyrene has oil in it ant the solvent dilluted it, at where I work we vacuum form the piece on the wood, taking a sheet of styrene, heating to wave point, and lowering onto the mold all in one action, what outcome are you looking for??

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Question by shepdawg5000: nose bleeds (please read details before answering)?
I have had nose bleeds since I was about 6 years old. It always seems to happen at the change of the seasons when I get them. Sometimes, I have it where they last a minute, other times they can last up to half an hour. I know how to stop them when I get them, but I would like to know a permenant solution to prevent them altogether weather that be surgery (as a last resort) or preferably some natural solution. Also, I do not take multi-vitamins(yet) and I have a humifier on when I am at home. It seems I get a nose bleed once I leave my house and when I am at work (I work in a plastic injection molding plant). Whenever there is reduced humidity, my whole body gets dry and fells like my body is dehydrated even though I drink about a gallon of water a day, not including the two glasses of o.j. and glass of milk or two. Please help!

Best answer:

Answer by mlgable
Your nosebleeds seem to be from the dry air since you state they are seasonal mostly. Use a humidifier in every room in your house/apartement and use vaseline aka petroleum jelly in your nostrils several times a day to help keep them moist. Keep a small tube in your pocket to use at work since the air is probably dry there too. You do need to get on a good multivitamin and a good antioxidant supplement to keep your immune system healthy.

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