Author Topic: Diy fiberglass cafe seat...another one  (Read 3022 times)

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Offline Mercuno

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Diy fiberglass cafe seat...another one
« on: October 01, 2011, 06:29:46 PM »
O.k. I built a steel seat out of an old gas tank a couple weeks ago. It was awfully heavy so I decided to glass it. And fine tune the shaping a little bit. This was the first thing I have ever fiberglassed. I spent 22 bucks on glass and resin.

1.use masking tape very liberally over everthing that may even get resin on it.

2. Spray cooking oil over everything........(everything_)  resin absolutely will not adhere to this stuff. so when it is dry everything slides right off.

3. use latex gloves and a cheap paint brush.

4. I tried both kinds of fiberglass....The cloth stuff forms really well but it is hard to soak it with resin and it stays softer longer..The shredded looking stuff soaks resin up extremely well is easiest to form once completely wet and gets hard fast.  I also feel like it was the strongest once dry. (but it was the 2nd layer I did)  (but what a difference!)

5. make a form for the hump.(I already had a tank, but before the decision was made to use the old tank I filled a 5 gallon bucket halfway up (layer at a time, layer at a time) with a 5 dollar can of that house sealant foam stuff. (it will dry very well and it is easy to shape)(foam at the hobby shop is way more expensive compared to this).

6. For simple discussion I used the stuff that you can get at any walmart or autoparts house for the resin. I used the rectangular cap as my mixing bowl. Fill the bowl up with resin and add 25-30 drops of the hardener that came in the small tube with it. Mix. and start dabbing it on with the paintbrush.

7. cut with grinder/dremel/sawzall/fingernails/teeth until your glass is exactly as you want it.

8. I used 2 layers and it was strong enough to sit on but I will add at least two more layers with the last layer being the cloth type because it seems it would be easier to fill and sand.

9. Pay extra attention to where the seat pan meets the vertical portion of the hump as this is the weakest portion of the whole thing.

I will update as I bondo and paint etc etc. Im sure I will ride it bare (naked) for a week before doing anything else because I am an el cheapy , broke son uf a gun.

Offline Mercuno

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Re: Diy fiberglass cafe seat...another one
« Reply #1 on: October 01, 2011, 06:31:29 PM »
bucket stuff.....its that stuff that has the long nozzle with it. cant remember what its called but you know what it is.

Offline Mercuno

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Re: Diy fiberglass cafe seat...another one
« Reply #2 on: October 01, 2011, 06:32:16 PM »
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Offline Mercuno

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Re: Diy fiberglass cafe seat...another one
« Reply #3 on: October 01, 2011, 06:33:03 PM »
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Offline Mercuno

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Re: Diy fiberglass cafe seat...another one
« Reply #4 on: October 01, 2011, 06:33:46 PM »
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Offline Mercuno

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Re: Diy fiberglass cafe seat...another one
« Reply #5 on: October 01, 2011, 06:35:39 PM »
Also.......when finished taping.....make sure nothing is crooked and tape it some more...lol.....I promise I did that even though the picture may say otherwise haha ::)

Offline Mercuno

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Re: Diy fiberglass cafe seat...another one
« Reply #6 on: October 01, 2011, 06:40:41 PM »
P.P.S.  I layered the glass right to the tank and frame. Keep in mind that it will be O.K. because I plan to run a small strip of rubber along the frame to resist abrasion therefore..raising the tank up slightly enough to give clearance of the tank.

Offline Mercuno

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Re: Diy fiberglass cafe seat...another one
« Reply #7 on: October 01, 2011, 06:44:57 PM »
does anyone know if the frame for the 550 and 750 are the same as far as the seating area goes?  I thought to myself , I could make these all day and beat out ebay prices. I could even leave the bottom long and let you trim to your liking or frame loop of whatever. I could use this one as the mold.  heck I could even shape some new ones. ? my wife has left to visit her mom so heeeeere I am am .  ;D

Offline BeSeeingYou

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Re: Diy fiberglass cafe seat...another one
« Reply #8 on: October 02, 2011, 11:36:46 AM »
Woven cloth is stronger than the chopped stand mat so you could use less.  It does come in different weights and weaves with some being very drapable, conforming to complex shapes.  Hardening times should not matter what cloth you use.  For a budget and readily available materials what you used is fine but for a bit more money and sourcing out materials there are better alternatives that are easier to work with.  Epoxy being superior to standard polyester resin is one and the cloth being less messy to work with than the mat.  Not meaning to rip on your project as it looks good. 

Offline Mercuno

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Re: Diy fiberglass cafe seat...another one
« Reply #9 on: October 02, 2011, 03:21:40 PM »
Yeah I agree that it could have been a little better. but that is apples to apples. I just sourced what any lamen such as I would through a typical parts house or walmart. I did the bondo work today. make sure you file it down while it is still a little pliable to smooth it out. hard lesson learned. So far I have spent about 90 dollars. If you want to you could do this but I highly recommend just buying one already made.