Make a fiberglass fan shroud
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I had a bunch of 2 lb polyurethane foam left over from other jobs, so I thought this project would be a good place to use some up. | I had a bunch of 2 lb polyurethane foam left over from other jobs, so I thought this project would be a good place to use some up. | ||
| − | It also can illustrate how easy it is to use this foam, it cuts so easy and shapes so well that it doesn't add all that much time to the project to | + | It also can illustrate how easy it is to use this foam, it cuts so easy and shapes so well that it doesn't add all that much time to the project to piece it up. This foam is available in thicknesses from 1/2" up to 6" thick at any fiberglass supply house, and you can also use the polyurethane insulating foam that is available from building supply stores. Just peel the foil layer off. (Keep in mind that styrofoam won't work under any resin with styrene in it, unless you can bar the resin from it.) |
[[Image:7box o scrap foam.JPG|center|600px]] | [[Image:7box o scrap foam.JPG|center|600px]] | ||
| − | + | Cut foam to shape with a handsaw, putty knife, or bandsaw. Then, fit and glue pieces of foam larger than your layout on the board. A hot melt glue gun makes gluing this foam fast and easy. Glue the foam down with an expanding urethane glue, or some of the expanding foam that comes in an aerosol can. The different glues can make sanding over seam lines difficult, as they are usually a different density and hardness than the surrounding foam. | |
| − | Shaping this foam can be done with sandpaper, sureform files, knives and picks | + | Shaping this foam can be done with sandpaper, sureform files, knives and picks. Even your fingers can shape this foam quite easily and rapidly. |
[[Image:5start foam.JPG|center|600px]] | [[Image:5start foam.JPG|center|600px]] | ||
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