Make a fiberglass fan shroud
(→Laminating the part) |
(→Laminating the part) |
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Cut strips of 1 1/2 oz fiberglass mat on a peice of cardboard, ready to be wetted out. 3 layers of 1 1/2 oz mat will make a part that is about 0.120" thick, as each layer contributes about .040" to the laminate. There will be an extra layer laminated around all of the edges to make the final part about 0.160" thick. | Cut strips of 1 1/2 oz fiberglass mat on a peice of cardboard, ready to be wetted out. 3 layers of 1 1/2 oz mat will make a part that is about 0.120" thick, as each layer contributes about .040" to the laminate. There will be an extra layer laminated around all of the edges to make the final part about 0.160" thick. | ||
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When wetting out mat with resin, many people work the resin into the mat while it is on the wet out board. This is a mistake and will only make a resin rich, inconsistant part. You only brush enough resin on to cover the mat with resin, give it a little bit of time, it will soak in. | When wetting out mat with resin, many people work the resin into the mat while it is on the wet out board. This is a mistake and will only make a resin rich, inconsistant part. You only brush enough resin on to cover the mat with resin, give it a little bit of time, it will soak in. | ||
Notice in the picture how there are some areas of mat that are darker, and have become transparent. There is no more resin on those strips than is on the others, they were wetted out earlier and have soaked up the resin. | Notice in the picture how there are some areas of mat that are darker, and have become transparent. There is no more resin on those strips than is on the others, they were wetted out earlier and have soaked up the resin. | ||
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You do need to be somewhat swift with this part of the laminating process, as time goes by the resin will dissolve the binder that holds the mat together and make picking it up to apply it to the part a very frustrating activity. If the binder has dissolved, the mat will just fall apart when you try to pick it up.. | You do need to be somewhat swift with this part of the laminating process, as time goes by the resin will dissolve the binder that holds the mat together and make picking it up to apply it to the part a very frustrating activity. If the binder has dissolved, the mat will just fall apart when you try to pick it up.. | ||
| − | [[Image:23wetting out some more.JPG|center|600px]] | + | {| |
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| + | |[[Image:21mat strips.JPG|center|600px|Cut strips of 1 1/2 oz fiberglass mat, and lay them out on a piece of cardboard, ready to be wetted out.] | ||
| + | |[[Image:22wetting out strips.JPG|center|600px|Brush on only enough resin to cover the mat, and then allow it to soak in.]] | ||
| + | [[Image:23wetting out some more.JPG|center|600px|Work quickly but carefully, as the resin will gradually dissolve the binder.]] | ||
| + | |} | ||
Brush some resin on the surface of your buck. Brush a bit more resin in the corners and outside corners as these areas tend to be a little dry after stretching the mat over them. | Brush some resin on the surface of your buck. Brush a bit more resin in the corners and outside corners as these areas tend to be a little dry after stretching the mat over them. | ||
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