How To Fiberglass - Two Part Mold Constuction - #2

Make a request in my channel on what topic you want to see in next video.

Sound has been removed, sorry.

This is part 2 of 2 continued on from the flanging video. I hope you learn a thing or two from my videos.

Correction: The gelcoat gun in this video has a 3.5mm tip, not 3mm. (3mm is still plenty)

Keep the comments and subscribing going and there will be more.

Any Questions you have ask in a comment or pm me.

Music in this video in order:

Mushroomhead - Sun Doesn't Rise
Mudvayne - Not Falling
System of a Down - Innervision

WAX = Carnauba wax (release agent).
FG = Fiberglass
CSM = Chopped Strand Matte(reinforcement)
PVA = Polyvinyl alcohol (release agent)
Plug = The original item that your creating a mold of.
Mold = A negative replica of the plug, specifically a 'tool' mold.

Next video will be the mold layup of this mold. Subscribe to get it instantly.

Category:

Howto & Style

Tags:

• how
• to
• fiberglass
• car
• audio
• sub
• woofer
• two
• part
• mold
• construction
• making
• mould
• howto
• gelcoat
• glass
• music

[LesterRienhart]

Excellent Video!!!

Thanks for taking the time to put this up!

I'm planning a gas tank and seat-tail for a vintage road race bike I'm building. Any suggestions for fuel safe resin?

Thanks!

[punk28186]

@LesterRienhart Thanks for comment. An epoxy base resin will stand up to fuels.

[unclejaymee]

how man how would i go about fibre glassing a hole bonnet? do i use the original bonnet as a mold and wat do i needa do cheers i live in NZ so any products etc would be great :D

[punk28186]

@unclejaymee To do it properly you will need to make tooling (negative mold) from the stock bonnet. Study up of two part mold flanging, use clay/plastercene to fill all the holes and gaps on the underside. Aluminum tape works great too and is faster. Tap/drill steel plates is what I used for my hinge reconnection, plates go inbetween the halves and I made a steel jig for perfect spacing. I recomend FGI products, Im pretty sure they have NZ stores, google it.

[Munky332]

couple questions: what brands do you use and where do you get them? gelcoat, resin, clay, PVA

[punk28186]

@Munky332 I live in Australia and get my stuff from FGI in Sydney. I cant recommend anything for the US, just that you should find a proper fiberglassing/marine supply company/distributor and not bye from a department store like walmart.

[nightpwner]

You know what I still don't get: Lets say I have a bowl. I want to make a sphere that will fit perfectly in that bowl.. How do I make a mold of that? And then when I go to cover the mold in fiber, won't the end piece be the same size as the bowl and therefor not fit?

[theycallmeGIORGIO]

know of a good place to buy fiberglass supplies? aka...cheap?

[mannysoares]

No jobs. Fodas

[mannysoares]

No jobs. Fodas

[MrOlorin60]

Absolutely brilliant video! Extremely informative. Great job.

[ricspeed1971]

great ...thanks :D

[punk28186]

@Ryanty12 PVA is a secondary release agent I use only when making the mold of the plug. It is an insurance policy for release xD Gelcoat give a tough sandable, polishable surface that will resist 100's of parts from a single mold. If all you want if to make a a few parts max, then gelcoat is not needed, but you will notice mold deterioration after every part from it you make. It also gives a uniformed surface to see imperfections.

[joshebra]

this is great but how did u make or where did you buy the white inside mold/cast?

[thegreatestmoo]

When you start putting the fiberglass resin and glass cloth on do you have to do it all before the resin cures? Or can you let it dry and harden and just mix up another batch and go right over the top? I see most resins only have a 10 minute window or so I don't really understand how exactly you are timing it. Also on your other video it looked like you put the resin on and it dried before you put the fiberglass over it?

[razuuk004]

I want to see a step by step video on Carbon Fiber Layup on a curvy part