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1. 10:24 PM - Key Sanding................and Instrument Panel ventilation (Tony Renshaw)
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| Subject: | Key Sanding................and Instrument Panel ventilation |
Gidday,
I want to air a hypothesis that key sanding does NOT matter what grade of paper,
so long as you dull it off. The premise is that by roughening you are removing
the gloss, and increasing the surface area. I am aware that the heavier the
grade of paper you use, the more likely you are to damage the glass fibres within
the matrix. So, I dont want advice on Grade of paper, but I do want to ask
whether people think that this could be true:
I believe there is a likelihood that whether you use 240 Grit paper, or 60 Grit
paper, that the substrate will increase in surface area by the same amount.
Thats my debate.
I also believe there is a likelihood that the amount will be twice the surface
area, but I dont know how to mathematically prove it, however Id like it explained
in simple terms, what the actual formula is in someone elses view. In fact
Ill go a step further and hypothesise that it is
1/2 surface area of a circle MINUS the are of the diameter of a similar radius
circle.
Im going to retract double, and reckon it is closer to a 50 % increase.
Any takers? Anyone had enough red wine to give this consideration? There might
be two guys out there in the Cottswalds, but they will probably just argue between
themselves, so I thought Id air it to the greater Europa community.
Regards
Tony Renshaw
P.S. I have an instrument panel fan, a computer fan, and I am wondering where would
be the most advised place to put it? I am thinking midway between the main
panel and the radio stack, behind the mono wheel gear retraction handle rebate,
on the RHS. Whatdoyareckon?
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