-
Something Fiberglass Won't stick to - To help make a mold
Hi all;
I was watching a custom car show and learned something of interest. They used Aluminum Foil, like we use for cooking, as the facing for a fiberglass mold they needed. The piece they needed to duplicate was smoothed and sanded very well. Then they laid the foil in strips overlapping about 2 inches and sealed the seam with 2 inch masking tape. Laid down the fiberglass mat material and put the resin on. When it cured they had a male mold of what they needed. I suppose that making a female mold would follow the same procedure. Custom width and length fenders might be within the reach of anyone willing to give it a shot.
Haven't tried it yet, but I know I will now.
Hope this helps a Garage Gladiator for their next project.
Buck1234
-
Very Active Member
-
Very Active Member
That's a new one for me. I was raised in the fiberglass industry. There are a number of Parting Agents or Mold Release materials that are painted onto the master, then the mat and resin applied over it. Often an air hose is used to separate the two pieces. This in particular goes for a gelcoat finish in almost all cases.
Ride in comfort,
John
Seal FloorBoards
-
Motorbike Professor
Originally Posted by sealfloorboards
That's a new one for me. I was raised in the fiberglass industry. There are a number of Parting Agents or Mold Release materials that are painted onto the master, then the mat and resin applied over it. Often an air hose is used to separate the two pieces. This in particular goes for a gelcoat finish in almost all cases.
Ride in comfort,
John
Seal FloorBoards
Sounds to me like they were trying to cover the plug to keep from damaging it making the mold. Seems like there would be a lot of finishing involved afertward, to clean up the mold and all the wrinkles, overlaps, and tape marks.
-Scotty
2011 Spyder RTS-SM5 (mine)
2000 BMW R1100RTP, motorized tricycle & 23 vintage bikes
2011 RT-622 trailer, Aspen Sentry popup camper, custom motorcycle trailer to pull behind the Spyder
Mutant Trikes Forever!
-
Having built many show vehicles yes that is one thing we/they use . Good find though what show was this on ? I may have to start watching it
-
Originally Posted by Smokinspyder
Having built many show vehicles yes that is one thing we/they use . Good find though what show was this on ? I may have to start watching it
West Coast Customs
-
Originally Posted by NancysToy
Sounds to me like they were trying to cover the plug to keep from damaging it making the mold. Seems like there would be a lot of finishing involved afertward, to clean up the mold and all the wrinkles, overlaps, and tape marks.
Checked with a Glass expert 35 years of show corvettes. He said that there is never a perfect mold, all of them have to be tweeked to perfection. Air bubles, small seams ect. That's why he uses skimming bondo on almost all of his molds for the "Perfect" finish. If he does it, it must work. Then for the final piece proper temperature and first class mold release and a careful sanding job.
-
Motorbike Professor
Originally Posted by buck1234
Checked with a Glass expert 35 years of show corvettes. He said that there is never a perfect mold, all of them have to be tweeked to perfection. Air bubles, small seams ect. That's why he uses skimming bondo on almost all of his molds for the "Perfect" finish. If he does it, it must work. Then for the final piece proper temperature and first class mold release and a careful sanding job.
Yea. they're all a bear. Preparation is everything, just like in other bodywork. The big difference is that with 'glass, you have to do the work twice.
-Scotty
2011 Spyder RTS-SM5 (mine)
2000 BMW R1100RTP, motorized tricycle & 23 vintage bikes
2011 RT-622 trailer, Aspen Sentry popup camper, custom motorcycle trailer to pull behind the Spyder
Mutant Trikes Forever!
-
yeah Agree with the above post . But its soooo much fun working with fiberglass.
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
|