Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: perspex sheets

  1. #1
    Gold Member twinscythe12332's Avatar
    Join Date
    Jan 2007
    Location
    durban
    Posts
    769
    Thanks
    12
    Thanked 110 Times in 84 Posts

    perspex sheets

    Hi All,

    Does anyone have a contact that I can get clear UV resistant Plexiglass sheets from? I've taken on the task of building my own solar panel, and I need about 1500mmx700mm sheets for relatively cheap. I'm in the durban area, so if I can go to the place it will make things easier. Thanks ^^

  2. #2
    Moderator IanF's Avatar
    Join Date
    Dec 2007
    Location
    Jhb
    Posts
    2,615
    Thanks
    191
    Thanked 520 Times in 398 Posts
    Perspex and cheap don't go together.
    Anyway phone Maizey, then look for other sign supply shops like Falcon.
    Only stress when you can change the outcome!

  3. #3
    Diamond Member AndyD's Avatar
    Join Date
    Jan 2010
    Location
    Cape Town
    Posts
    4,405
    Thanks
    513
    Thanked 855 Times in 688 Posts
    Durban plastics. Toughened glass would be better but I'm not sure about the price. Perspex will go from transparent to opaque over time and might have a notable effect on efficiency.
    _______________________________________________
    I am special and so is Vanash.
    _______________________________________________

  4. #4
    Gold Member twinscythe12332's Avatar
    Join Date
    Jan 2007
    Location
    durban
    Posts
    769
    Thanks
    12
    Thanked 110 Times in 84 Posts
    I was also thinking of toughened glass... Plexi glass doesn't have too many issues, other than it's massive price. I will look into toughened glass as well.

  5. #5
    Diamond Member adrianh's Avatar
    Join Date
    Mar 2010
    Location
    Cape Town
    Posts
    5,089
    Thanks
    336
    Thanked 808 Times in 642 Posts
    Plexiglass is certainly not the right material for the application. You are far better off using toughened glass.
    How easily someone is offended is directly proportional to how stupid they are.
    ~GS Elevator

  6. #6
    Diamond Member AndyD's Avatar
    Join Date
    Jan 2010
    Location
    Cape Town
    Posts
    4,405
    Thanks
    513
    Thanked 855 Times in 688 Posts
    I don't think any of the options will be cheap. I think toughened glass is a fair few humdred Rands per square meter and you need to be accurate because it can't be cut once it's toughened. Maybe look at laminated glass like in windscreens, certainly weatherproof and shouldn't deteriorate to any noticable degree. If you can find it in flat pieces it might be cheaper because of the larger volumes of sales.
    _______________________________________________
    I am special and so is Vanash.
    _______________________________________________

  7. #7
    Bronze Member dfsa's Avatar
    Join Date
    Jun 2012
    Location
    SA
    Posts
    166
    Thanks
    8
    Thanked 31 Times in 24 Posts
    You need to look at efficiency options. low-iron glass or plexiglass. what you would need from the suppliers is the following.

    It should be clear in their spec.

    1) What heat gain do the product have.
    2) What is the light transmitting from the product and transmitting loss over time while exposed to UV.


    low-iron glass would be my option, but you need to compare pricing.

    You don't want to loose efficiency and you would need to put them into an aluminum frame for added strength

  8. #8
    Gold Member daveob's Avatar
    Join Date
    Feb 2008
    Location
    Amanzimtoti
    Posts
    655
    Thanks
    107
    Thanked 118 Times in 103 Posts
    Previous research that I did on solar panels indicated that plexiglass discoloured over time when exposed to UV.

    The best and cheapest option always was glass.

    If worried about hail or other damage, consider the laminated glass - i think PG call it "intruder proof", but there are other generic types of the same thing.

    Recently had a bedroom window replace with this stuff. Was about 1,3 x 1,3m and cost about R800

    You might just find it cheaper to buy the pre-made panels from a supplier / importer.
    Watching the ships passing by.

  9. #9
    Diamond Member Justloadit's Avatar
    Join Date
    Nov 2010
    Location
    Johannesburg
    Posts
    2,671
    Thanks
    88
    Thanked 544 Times in 460 Posts
    Blog Entries
    1
    What do you mean by solar panel?
    Heating water, generating electricity?
    This will influence the decision you make.
    Victor - Knowledge is a blessing or a curse, your current circumstances make you decide!
    Solar and LED lighting solutions - www.microsolve.co.za

  10. #10
    Gold Member twinscythe12332's Avatar
    Join Date
    Jan 2007
    Location
    durban
    Posts
    769
    Thanks
    12
    Thanked 110 Times in 84 Posts
    I've bought a bunch of solar cells off bidorbuy, so generating electricity. Durban seems to receive hail decades apart... so I'm not too worried about hail. I just need something to protect it from the elements and the odd cat/monkey who might decide to walk on it .
    I will be taking a look at the local PG glass and glasfit in my area to see who is the cheaper option.
    My current objective is to build a 144W, 18V, 6.6A solar panel for less than 2.3K (ie, I'm looking to make a solar panel that costs less than buying one off a solar specialist site).
    I have most of the stuff except a frame to house everything and the glass to cover it. my original reason for plexiglass was its strength, but I doubt I'm going to need this thing to be that intense.
    It's also a nice project... I like to keep busy, and I especially like it when there is some additional reward (in this case, renewable energy).

  11. Thanks given for this post:

    AndyD (04-Jul-12)

Page 1 of 2 12 LastLast

Similar Threads

  1. service sheets
    By murdock in forum General Business Forum
    Replies: 7
    Last Post: 13-Jan-11, 08:49 AM
  2. [Article] Nifty Excel spread sheets
    By IanF in forum General Business Forum
    Replies: 7
    Last Post: 05-Dec-08, 12:14 PM

Did you like this article? Share it with your favourite social network.

Did you like this article? Share it with your favourite social network.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •