College talk about chemistry of paint

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  • #470 Reply
    Jichi
    Guest

    I have to give a little talk at a local college about the chemistry of paint, i.e. why things fade, deteriorate. It’s some sort of chemistry/ biology class, and they called me due to all my local murals.

    Aside from talking about quality of paint, walls facing the sun, why reds fade faster and the pros and cons of sealant, I’m going to be talking out of my ass for about 90% of the class. If anyone has any suggestions on things I could bring up to kill time and make me sound smart I would truly appreciate it….

    #471 Reply
    Penangite01
    Guest

    Ooooo this is getting interesting.

    #475 Reply
    K.T.7
    Guest

    The quality of the medium, I think, is one of the most determining factors. That is what makes all of the paint companies different, their formulas. I’m not 100% sure, and it may vary for different colors, but I think the pigments used to actually color the paints are the same for every company.

    #476 Reply
    TIMothy
    Guest

    @K.T.7 you would think they are but each company has there own variation of colorants that why they never really match. Let alone each companies paint formulas.

    #477 Reply
    Schalke
    Guest

    The different types of paint and the history of paint could be interesting.
    For instance, back in the old time days, painters would travel from town to town with their bucket full of brushes and pigments. Since even bigger cities were quite rural the two components they needed to make paint, lime and milk protein were readily available. So they would mix the local lime and milk protein with their pigments to create paint onsite. Without pigment added, it was “whitewash” like in the Huck Finn story of whitewashing the fence. People would whitewash or get their houses painted in spring, since the lime component acts as an antibacterial agent and cleanses the house

    #478 Reply
    K.T
    Guest

    @TIMothy would think they are but each company has there own variation of colorants that why they never really match. Let alone each companies paint formulas.

    #479 Reply
    Annie
    Guest

    I would mention viscosity and the breakdown of quality with less emulsion. Watering down trashes paint. I’ve seen contractors extend and there is no guarantee how long it will last before fading and flaking.

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