---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Thu 05/29/14: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:24 PM - Key Sanding................and Instrument Panel ventilation (Tony Renshaw) ________________________________ Message 1 _____________________________________ Time: 10:24:06 PM PST US From: Tony Renshaw Subject: Europa-List: 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? ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.