Cutting the curved glass of an extractor fan

Discussion in 'Kitchen Fitters' Talk' started by rogerk101, Feb 28, 2018.

  1. goldenboy

    goldenboy Well-Known Member

    This subject started World War 3 on here many many years ago!
  2. goldenboy

    goldenboy Well-Known Member

    As far as I know you cannot cut or drill toughened glass. Possibly with specialised machinery but certainly not with normal kit. Certainly not to a "finished" edge anyway.

    Nearest I have come was on these doors that I did. The mirrors behind the handles required on site drilling of 10mm holes to accomodate the fixings. The holes were not pretty but were covered by the backplates and there were a lot of breakages but I did them with a lot of water and Bosch MultiConstruction bits.

    Attached Files:

  3. chippie244

    chippie244 Well-Known Member

    How about, your statement is incorrect or misleading.
    Is that better HA?
  4. chippie244

    chippie244 Well-Known Member

    I know :cool:
    goldenboy likes this.

  5. It's Har.

    Please state what is incorrect or misleading.
  6. chippie244

    chippie244 Well-Known Member

    You don't get to pick your own nickname and it's just that you remind me so much of someone :)
    Try and work the second bit out yourself, it took me about 30 seconds.
    goldenboy likes this.
  7. I'm not playing games.

    The difference between Pyrex and glass is that Pyrex is tempered glass and used for cook wares whereas glass is mostly used for architecture and furniture. Glass is made from the same ingredients as Pyrex but the tempering methods gives glass entirely different properties. Pyrex is made by the low coefficient expansion of borosilicate glass whereas glass is blown and pressed to prepare it for the molding process.

    When ordinary glass acquires some new characteristics due to some tempering and other processes, it is called Pyrex. The tempering process when applied to the finished glass products called Pyrex makes it four to six times stronger than the regular glass product. The heat resistant quality to bear up to 425 degrees F makes the Pyrex products ideal for the use in the kitchen especially for cooking or baking purposes.

    Pyrex glass breaks into a smooth pattern known as dicing and shatters down into small cubical pieces whereas glass can break into hazardous sharp edged long pieces. Pyrex was produced in 1915 by Corning In. followed by World Kitchen LLC which is making glass products by the registered trade name of Pyrex. They produce heat resistant products like baking trays, measuring cups and tea pots etc. Since the ordinary glass does not have much heat resistant qualities, we do not use them directly in contact with too much heated or cold temperatures.
  8. chippie244

    chippie244 Well-Known Member

  9. Nowhere in that article does it say that it is different glass as to what in in the glass of a cooker hood.
  10. kitfit1

    kitfit1 Active Member

    Whatever little argument you 2 are having, has got nothing to do with the OP's question :D
    Either way, Pyrex is not the some as Toughened glass..........................................plump it up as much as you like................the two are completely different.
  11. goldenboy

    goldenboy Well-Known Member

    I always thought Pyrex was a special type of glass. I am pretty certain Pyrex and toughened glass are not exactly the same thing. Primary reason being that for Pyrex to trademark and patent it it has to be a unique product surely?
  12. goldenboy

    goldenboy Well-Known Member

    Plus most patio doors dont fit in conventional ovens in my experience.
  13. It's made from different stuff(or rather different added stuff). But similar glass can be made with different products, doesn't have to be called pyrex(a trade name). Once the pyrex has been formed, it is still tempered.
  14. goldenboy

    goldenboy Well-Known Member

    Yes but thats like saying all cars are identical because they have four wheels. Whats added to the basic four wheels, engine and steering wheel is what makes it different. Just because you can smooth out a chip on a oven tray doesnt mean you can chop the corner off a cooker hood.
  15. No. But by the same thinking, it doesn't prevent you cutting metal if it may be steel or aluminium!
  16. goldenboy

    goldenboy Well-Known Member

    This is a roundabout of nonsense. Chap wants to know if he can cut the corner off a cooker hood. Answer is no. Whether you can smooth out a chip on a
    Pyrex dish is irrelevant. Unless the cooker hood is actually a Pyrex dish.

  17. But it is not only dishes that are pyrex.
  18. Anyway, I'm still trying to work out how the glass under a hood can prevent a cupboard door opening.
  19. Dr Bodgit

    Dr Bodgit Well-Known Member

    This. Both Pyrex and the cooker hood are tempered or toughened but the make up of the glass is different. You can't cut the cooker hood.
    goldenboy likes this.
  20. Bob Rathbone

    Bob Rathbone Active Member

    Try to cut this and it will shatter into a million pieces, it's toughened glass, that means the surface of the glass has been heat treated and cooled quickly to create tension in the glass.
    Dr Bodgit likes this.

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