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Making Fiberglass Parts #1410651 03/29/13 10:05 AM 03/29/13 10:05 AM
Joined: Feb 2009 Posts: 1,532 off the grid 340B5 OP pro stock
340B5 OP pro stock Joined: Feb 2009 Posts: 1,532 off the grid	When making fiberglass parts; What should be used to help release the glass from the mold? Yeah, it's got a smallblock.

Re: Making Fiberglass Parts [Re: 340B5] #1410652 03/29/13 10:15 AM 03/29/13 10:15 AM
Joined: Jan 2007 Posts: 1,444 NEW JERSEY D dynamite pro stock
dynamite pro stock D Joined: Jan 2007 Posts: 1,444 NEW JERSEY	It's called mold release wax...many many coats..and there is another water soluble liquid that you spray on the mold first ,then when the glass is cured it can be washed away and separated. It's almost like a spray wax..,,,and I forgot what it's called...but a site on the web I found while looking where to buy larger amounts of fiberglass had it..

Re: Making Fiberglass Parts [Re: dynamite] #1410653 03/29/13 10:19 AM 03/29/13 10:19 AM
Joined: Jan 2007 Posts: 1,444 NEW JERSEY D dynamite pro stock
dynamite pro stock D Joined: Jan 2007 Posts: 1,444 NEW JERSEY	Go to a site called Fiber glass warehouse...then click on mold release..there it is

Re: Making Fiberglass Parts [Re: 340B5] #1410654 03/29/13 10:23 AM 03/29/13 10:23 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	There are a few releasing agents you can buy... I made the hood on my car(no products made for a P body so I made a fiberglass hood first, then made a carbon fiber one thats on the car now

Re: Making Fiberglass Parts [Re: MR_P_BODY] #1410655 03/29/13 11:04 AM 03/29/13 11:04 AM
Joined: Feb 2009 Posts: 1,532 off the grid 340B5 OP pro stock
340B5 OP pro stock Joined: Feb 2009 Posts: 1,532 off the grid	After doing a search, it looks like I could just buy a good carnuba wax and wax the mold heavily? How do you work w/ carbon fiber to get bends if you buy a flat sheet? Yeah, it's got a smallblock.

Re: Making Fiberglass Parts [Re: 340B5] #1410656 03/29/13 11:11 AM 03/29/13 11:11 AM
Joined: Dec 2003 Posts: 22,696 Bitopia J jcc If you can't dazzle em with diamonds..
jcc If you can't dazzle em with diamonds.. J Joined: Dec 2003 Posts: 22,696 Bitopia	Not as a professional fiberglassed part maker, but one who has fiberglassed for 40? years, wax is my least favorite release agent. Sprayed on water soluble "PVA" is my favorite. Rebuilding a mold because of insufficient release will make one hang out in the "cuss" thread. Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.

Re: Making Fiberglass Parts [Re: 340B5] #1410657 03/29/13 11:32 AM 03/29/13 11:32 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: After doing a search, it looks like I could just buy a good carnuba wax and wax the mold heavily? How do you work w/ carbon fiber to get bends if you buy a flat sheet? Carbon fiber looks just like fiberglass.. its a soft material that comes in rolls but black... it uses a resin like fiberglass but you put it in a special baggy and apply a vacuum to it to get all of the excess resin out of it

Re: Making Fiberglass Parts [Re: MR_P_BODY] #1410658 03/29/13 12:33 PM 03/29/13 12:33 PM
Joined: Feb 2009 Posts: 1,532 off the grid 340B5 OP pro stock
340B5 OP pro stock Joined: Feb 2009 Posts: 1,532 off the grid	Ok, so then the thin flat sheets of carbon fiber are easily workable to make a front air dam or spoiler? Jcc; point taken on the wax. Yeah, it's got a smallblock.

Re: Making Fiberglass Parts [Re: 340B5] #1410659 03/29/13 01:00 PM 03/29/13 01:00 PM
Joined: Jul 2004 Posts: 106 The NB Vermont D dustaboy74 member
dustaboy74 member D Joined: Jul 2004 Posts: 106 The NB Vermont	Mcguires makes a really good mold release wax that I have used. Also check out Soller Composites as they carry a range of material. The hardest part is the mold that you make as that requires the most time to make sure it is what you want and is set correctly to release the product out of it. I have used hairspray on top of the wax as a release agent as well but you have to use the cheap stuff that doesn't have a certain chemical in it. I forgot what it was maybe someone else knows.

Re: Making Fiberglass Parts [Re: dustaboy74] #1410660 03/29/13 02:12 PM 03/29/13 02:12 PM
Joined: Jan 2011 Posts: 4,785 Utah and Alaska astjp2 master
astjp2 master Joined: Jan 2011 Posts: 4,785 Utah and Alaska	The mold needs draft and draw, the angles of the part must allow it to release. I have the equipment to bag parts, it is not always necessary, the thing it does do is remove the excess resin and thus reduce the weight without reducing strength. Another factor on composites, 100% of the load/stresses goes through the stiffest fiber (carbon) until it fails, then it transfers the load to the glass if you are using a multi fiber composite structure..... The grain direction of a unidirectional is critical, 4* off of the direction of the grain can lose up to 99% of the stiffness in that direction . Tim 1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta I didn't do 4 years and 9 months of Graduate School to be called Mister!

Re: Making Fiberglass Parts [Re: astjp2] #1410661 03/29/13 02:43 PM 03/29/13 02:43 PM
Joined: Dec 2003 Posts: 22,696 Bitopia J jcc If you can't dazzle em with diamonds..
jcc If you can't dazzle em with diamonds.. J Joined: Dec 2003 Posts: 22,696 Bitopia	Quote: The mold needs draft and draw, the angles of the part must allow it to release. I have the equipment to bag parts, it is not always necessary, the thing it does do is remove the excess resin and thus reduce the weight without reducing strength. Another factor on composites, 100% of the load/stresses goes through the stiffest fiber (carbon) until it fails, then it transfers the load to the glass if you are using a multi fiber composite structure..... The grain direction of a unidirectional is critical, 4* off of the direction of the grain can lose up to 99% of the stiffness in that direction . Tim That 4Deg comment is surprising, and why bother with fiberglass when using CF, unless its Kevlar or nomex? i also would make sure everyone understands the resin/glue adds almost no strength to the the item, mainly adds weight, its all about the fiber, but it must be held in place by the resin. Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.

Re: Making Fiberglass Parts [Re: 340B5] #1410662 03/29/13 02:57 PM 03/29/13 02:57 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: After doing a search, it looks like I could just buy a good carnuba wax and wax the mold heavily? How do you work w/ carbon fiber to get bends if you buy a flat sheet? Is that what your trying to make... the pre made flat sheets arent what you want... they will always be flat unless you bend it(but it will go back to flat as soon as you take off what is making it hold the shape).. your better off using the raw cloth and using a mold... the mold is the hardest part to make unless you have a part to mold off of

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