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Post by theused on Mar 29, 2005 20:59:48 GMT -8
Tonight I was watching Rides on TLC and they were re-doing a Caddy XLR, they removed the front and rear bumper and built it up with clay and foam. Does anybody know the best way to do this?
Currently I was thinkin making a fiberglass model of my front bumper and then building it up with clay and using that as a mold.
Any suggestions?
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Post by Steve Austin on Mar 31, 2005 8:53:07 GMT -8
Hi theused, The bumpers are removed and an armature of wood and foam are attached to the body of the vehicle. The clay is applied and the bumper surfaces are modeled to the design using the existing body panels for alignment. After the design is complete, molds are taken from the finished model and fiberglass parts made. These inturn are fixed to the existing stucture of the original bumpers so that they fix into the correct position. In a nut shell that is basically how it is done. Steve A
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Post by HC on May 8, 2005 2:02:11 GMT -8
Hi !
I watched the same programe, and they seem to paint the clay model before applying the gelcoat. Is the panit som kind of special paint or just regular spraycan panit from the autoshop?.
HC Kingdom of Norway
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Post by SRS on May 28, 2005 11:40:32 GMT -8
You can paint clay, but in the case pn question the clay was prepped for an epoxy mold.
You can take a Plaster ( Gypsum ) FRP, Epoxy mold from a finished , prepared Clay model without damaging the clay.
Many times novices will lay Polyester resin over Sulfa based styling clay and wonder why they cant remove the mold. Polyester resins are sensitive to any outside contamination and need a barrier coat, release agent or parting agent.
The whole idea is to get the styling done quickly in clay, pull a quick mold / part , check for fit and fine tune that part, rather than spend many hours refining the clay just for one part.
Once that part is made a plug or master can be made and production tooling from that.
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