So, is plexiglass a good sound barrier? Providing you seal the edges properly, plexiglass will do a good job of eliminating outside noise. A friend recently suggested plexiglass as a solution, which led me to look into it.
Flexiglass windows windows#
because its cheaper that way.It’s not a surprise that windows are one of the weakest areas when it comes to soundproofing, and I’m always looking out for ways to make a noticeable difference to their noise blocking ability. Not one bit.įor the question "Why did the manufacturer do that?" the answer is often. True you can only shape glass as a ruled surface but designers have worked with that for a long time.Īnd glass doesn't degrade in UV light. Float glass has been around for a long time. Heck, the raw material for glass is essentially sand. Float glass is still expensive if you had to build up a glass factory from scratch, but once the factory is built glass is very reasonably priced. No way you'd want that hassle or tooling investment cost for door glass or windshields or rear window. From my experience, headlamp design and tooling is on the critical path for a vehicle's development cycle. Some of those tools can take up to year to produce from start of design till first parts come out of the press.
Flexiglass windows crack#
If you do something wrong or try to go too fast you can crack a mold. That steel is super expensive grade, super hard. Its not possible to put ten people on the job and have it go ten times faster. Because of the size of the molds you really can only have one person working on a mold at a time. I will say the molds for polycarbonate headlamp lenses were some of the most highly engineered (and super expensive) tooling we had to deal with. I did a whole lot of engineering for a US based Original Equipment Manufacturer (OEM) for both exterior glass and exterior lighting products. The molds (Dies) for these products is crazy expensive. Glass forming dies aren't nearly as expensive as molds necessary for things like headlamp lenses.
And plexiglas is basically Acrylic.Īs for why plexiglass is not used in cars? My guess is you really need to follow the dollar bill $$$$$$$$. It's got decent properties, molds well and passes light consistently. Red tail lamps lenses are virtually all acrylic. The polycarbonate material has a thin coating sprayed on top of the lens to help provide extra UV protection. Generally headlamp lenses are made of polycarbonate. With that said, there are a whole lot of plastics used on modern cars. In my experience that is the weakest link in its usage. One of their characteristics is that they easily degrade in UV / sunlight. They almost fell and fled ungracefully.įor a very long time I thought that plexiglass is not fit for automotive purposes but now I am reconsidering.Īpart from the windshield (which would degrade faster due to direct impact of microparticles), what do you think are the reasons that plexiglass is not considered for car windows?
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The tool bounced right off the window and hit the driver of the bike on the helmet. Stopped right next to me on a red light and one of them tried to smash through the glass with a hammer. I'm bringing this up because yesterday two guys on a bike attempted to steal my briefcase. It's been closing in two years and it is still crystal clear (which is why I kinda forgot about it), though with microscratches if you look really close. I was in a hurry and short on cash so I "temporarily" cut a 4 or 5mm thick piece of plexiglass ($8), bent it with hot air and placed it in my car thinking that a few weeks later when it will be worn out I would replace it with a proper window.
Back in 2014 someone broke the right side window of my VW Golf.
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