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bryankazmer

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Posts posted by bryankazmer

  1. The plasticizer migration makes it brittle. The degradation of the vinyl backbone makes it yellow. All of the suggested fine abrasives will polish the surface layer, which is the most affected. If damages is deeper (likely from what you say) it’s time for a new window. Replasticizing doesn’t have to use coconut product. Epoxidized soybean oil is probably easier to get. This will restore a limited amount of the flexibility. The original process uses special conditions and equipment to get more permanent absorption

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  2. I did a quick look for a summary 0n ibiblio, cuz the math of the one study is suspect

     

    Briefly:

    Finland 1976, 21% less accidents with DRL

    Sweden 1981, 11%

    Norway, 1986, 14%

    Norway, 1993, 10% day, 20% worse at night (using DRL for headlights?)

                              15% better in summer, no difference in winter

    Denmark, 1994, 6%

                               34% better on left turn accidents

    US 1970, 18%

    SAE 1985, 7%

    Canada, 11%

    SAE 1994, 69% less damage (conducted by a rental company)

     

    Some question the applicability of the Scandinavian studies to other climates

    A confounding effect is the overall underlying trends over time - some studies have good control groups but this a problem with "before and after" studies

  3. 3 hours ago, Rusty_OToole said:

     

    Can you tell me the difference between a Sportster and a club coupe? Was it just a different name or were there other changes?

    The Sportster was basically a fancy trim club coupe/2 dr sedan, it cost about $200 more than the 2 dr sedan in the same line.  The Mayfair , Panama, and Pacific had true hardtops available.

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