Vacuum Resin Infusion Process: Fabricating a Composite Car Seat

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Vacuum Resin Infusion Process: Fabricating a Composite Car Seat

Рет қаралды 528,406

13 жыл бұрын

www.smooth-on.c... for more information about vacuum bagging.
The aftermarket auto parts industry has grown significantly over the past decade. Increased competition and short lead times have created a demand for faster production methods and techniques. Implementing Smooth-On's vacuum bagging silicone into a resin infusion production method has enabled manufacturers to shorten turn-around time by reducing labor required to tailor the bag and make a part. And because the silicone bag is reusable, the cost of consumables is minimized, if not eliminated.
Making Re-usable Vacuum Bags Offers Several Advantages;
* Reusable Bags Reduces Labor Costs Up To 90%
* Reusable Bags Can Be Used To Quickly Produce Many Parts
* Cured Silicone Rubber Resists Attack from Chemically Harsh Resins
* Heat Resistance up to 500°F / 260°C
* Non-hazardous; No Odor
* Reusable Bag Eliminates Traditional Bag Film Waste
"Smooth-On's vacuum bagging silicone has reduced our time to make a part by more than 50%."
Danny Dispenza - Owner
Nordan Composite Technology
Composite part specialist for Formula 1,
Grand Prix and Indy racing cars
Patchogue, NY USA
Prepare the Tool
2 coats of paste wax are applied to the tool. Allow to dry at room temperature. Wax is buffed to a glossy finish. 2 coats of PVA are applied to the tool. Allow to dry at room temperature.
EpoxAcoat Red: Surface Coat Resin
EpoxAcoat Red is dispensed and mixed thoroughly. 2 coats of EpoxAcoat Red are applied. Allow EpoxAcoat Red to partically cure for 1 hour. Vacuum host is attached to the underside of the tool and secured. Vacuum system, including resin trap, is ready for the infusion process. Glass matting is laid onto tacky surface coat. Vacuum bag made using Smooth-On's EZ-Spray Silicone 20. Pre-engineed channel secures bag to tool, allowing for 100% positive vacuum. Custom made vacuum bag conforms to the tool surface.
EpoxAmite 100 Laminating Epoxy
EpoxAmite is dispensed and mixed thorougly. Vacuum is turned on to start the infusion process. Clamp is removed from resin feed line. Resin flows into bag under vacuum. Resin thoroughly and uniformly saturates glass under vacuum. Bag translucency allows for visual monitoring of the rate of resin infusion. When glass matting is fully saturated, feed line is clamped off. Resin is allowed to fully cure under vacuum at room temperature.
Demold
Vacuum bag is removed. Silicone vacuum bag is ready for another cycle. Finished part is removed from tool. Vacuum bag produces a part that is precise, void free and has a perfectly smooth finish.
Make It Now! with Smooth-On
www.smooth-on.com/
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Adult Supervision Required
Keep Out Of Reach Of Children
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Пікірлер: 89

@pabrad1 13 жыл бұрын

Very cool process. The silicone does not look like it was affected by the resin contact at all. Not having to use release film or tapes or peel ply definately will help reduce costs. Well done.

@allaboutthatbassdrum750 Жыл бұрын

I worked in composite fiberglass for a few years. This is the exact same process we used to make Wind Blades for wind farms, save for the more efficient silicone bag you guys have. That would have made things so much simpler, and probably prevented a ton of manufacturer defects.

@smoothon 6 ай бұрын

Thanks for watching, and don't forget to subscribe!

@smoothon 11 жыл бұрын

Indeed, in this situation a smooth finish was first and foremost. Saturation of the fibers is crucial to creating strength and on some cases, an overpressure due to having your resin supply higher than the tool can be problematic. There are some new fiber fabrics we have been looking at that seem to reduce this risk, but you are absolutely right in stating that the height of the resin container can have a great deal to do with the saturation rate of the fibers.

@combustioncraig 11 жыл бұрын

Dry carbon refers to using prepreg material that already has resin infused in the material. Prepreg is lighter than VRI/RTM (resin transfer mold) but generally requires a autoclave to produce parts unless the prepreg is OoA (out of autoclave) prepreg which still requires a oven.

@smoothon 12 жыл бұрын

@90Dajew In some cases it is not possible to spray due to space constraints, or lack of a machine. Spraying can be faster and produce a more even result in some cases.

@hondo2160 13 жыл бұрын

Interesting...seeing the process all laid out really helps visualize it!

@smoothon 13 жыл бұрын

A respirator would be recommended when working with any epoxy resin in that application. The MSDS sheet - available on our website - has more info.

@rickhiggins70 13 жыл бұрын

This is great! Taking a complex project and showing how to achieve it! Thanks for this

@verdatum 8 жыл бұрын

Hey Smooth-On people, this video omits a crucial step where you added strips of surface veil bridging the chopped strand mat to the internal and main vacuum channels. Being new to this technique, I was completely confused how the bag would manage to pull any suction whatsoever on the mold cavity & resin feed. I ended up watching both videos three times trying to figure out what I was missing. I didn't figure it out until I watched the wind-blade infusion video that did include the step. Could you possibly add a quick little annotation to this video mentioning that step and its importance? I would suggest at 3:45, where the surface veil strips can be clearly seen as having been added.

@mgb4tim 13 жыл бұрын

I love the silicon bag. I need this!

@jonnymiskatonic 9 жыл бұрын

I'm considering this for making some fenders in both fiberglass and carbon fiber. It seems like this method would produce the most repeatable results.

@MatthieuLibeert 12 жыл бұрын

great video, will try to make a silicone bag as well for my prototyping projects, can someone explain me why you dont have to use infusion mesh anymore? Is it possible to make a siliconebag with a brush instead of a spraygun?

@felipetesta 2 жыл бұрын

Great video, thanks for sharing!

@smoothon 2 жыл бұрын

Thanks for watching!

@SatansMullet 13 жыл бұрын

Simply AMAZING!

@smoothon 11 жыл бұрын

The PVA Smooth-On manufacturers is sold under the name Ease Release 2125

@leloodallasmultipass 11 жыл бұрын

that is a really simple system. is there anything you need to add between the mold and the silicon to stick them together or do they just seal up from the vacuum?

@mendymalek1606 11 жыл бұрын

Prepare the Tool 2 coats of paste wax are applied to the tool. Allow to dry at room temperature. Wax is buffed to a glossy finish. 2 coats of PVA are applied to the tool. Allow to dry at room temperature Can you reccomend me wich PVA solution can I use? Thanks Mendy

@iambeeman1 4 жыл бұрын

How many times can that bag be reused assuming no handling damage?

@serhioramires3166 2 жыл бұрын

Excellent!

@smoothon 2 жыл бұрын

Glad you liked it!

@federicoromero6130 7 жыл бұрын

nice the tools and method

@smoothon 7 жыл бұрын

Thanks for watching!

@wtfftw24 3 жыл бұрын

Interesting process. But I have to say that those white fibers left on fiberglass seems to be a not perfect wet lamination. When you normally wet fiberglass it disappears. Any answer? Thank you

@smoothon 3 жыл бұрын

Epoxy resin will not break down fiberglass the way a polyester or vinylester will.

@wtfftw24 3 жыл бұрын

@@smoothon Agree but it doesn't answer my question.

@smoothon 3 жыл бұрын

That is the B side of the cast part. The part was made using a particular reinforcement that is composed of both glass fiber and breather cloth, which gets completely compressed and evenly saturated with the resin delivered via infusion under vacuum. The fibers are visible through the cured resin; not left on the surface.

@wtfftw24 3 жыл бұрын

@@smoothon Thank you

@332ARA 4 жыл бұрын

how long did the cure take?

@jobsailing 11 жыл бұрын

Im concerned with the fact that the resin bucket is placed higher than the part to be infused. This will create an overpressure and oversaturate the fibers. Is this something to do with a flaw in the bagging system? Or are the builders just looking for a smooth finish and not worrying about fiber content etc...

@abedabed2159 6 жыл бұрын

Hi, wondrous, your work is possible to learn like you

@noelozano7035 Жыл бұрын

Que tipo de silicón utiliza

@smoothon Жыл бұрын

www.smooth-on.com/products/ez-spray-silicone-20/

@HomemadeChair 13 жыл бұрын

Is EpoxAmite 101 toxic? Let's say I was painting it on to something with a paint brush, is a respirator needed?

@mihciu92 11 жыл бұрын

When you use this method (vacuum Resin infusion), then do the overbake to carbon fiber, can I name it "dry carbon"?

@kustomaid6870 3 жыл бұрын

Wich brand of Seat is this?

@MegaherzZwei 8 жыл бұрын

How many ounces was that chopped strand mat used for the seat?

@smoothon 8 жыл бұрын

+MegaherzZwei This was a Chomarat infusion media with chop strand / breather combo. More info can be found at www.chomarat.com/en/

@sureshpounraj4392 6 жыл бұрын

Hi, Whats the Vacuum pump capacity - in m3/hr rate used for this?

@praveen4548 4 жыл бұрын

How this mold is made?

@smoothon 4 жыл бұрын

Hi there! This is a good question for our tech support team, can you send them a ticket here? www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!

@guitariste47 6 жыл бұрын

very nice

@eriklopez258 8 жыл бұрын

where can I get a mold and for a composite bucket seat like that one?

@mikes2381 7 жыл бұрын

Erik Lopez Out of your own two hands.

@plasticbaldy 10 жыл бұрын

Chopped strand mat is not usually used with epoxy resin. Why is this different ?

@cyberblade6669 9 жыл бұрын

Andrzei Czajkowski it is it is used it's sewn together instead of glued because the binder is incompatible

@plasticbaldy 9 жыл бұрын

jason mooney Hahahahaha. Rubbish. Stick to giving advice on things you know about Jason. Like Xbox probably.

@cyberblade6669 9 жыл бұрын

you know i can get 5 rolls of bagging film for the cost of your silicone one. ill still have bags when that thing is long been destroyed. leave it to smooth on sucker born every day try a real resin company like fiberglass Hawaii or ranker not this repacked crap 200 bucks for polyester resin i get a 55 gallon barrel for 500 iso. 600 for surfboard. 1200 for epoxy clear for carbon. shop around people don't let scammers like this rob you

@adamm2716 8 жыл бұрын

I wonder how well something like this would hold up in an enclave

@verdatum 8 жыл бұрын

Silicone bags are frequently used with ovens. They hold up just perfectly up to 500F.

@Slash7coildabest 12 жыл бұрын

thats impressive

@manoo422 6 жыл бұрын

Whats the point of having a high quality inside finish, the bit you are never going to see...?

@user-mq2ik4is7o 4 жыл бұрын

在台灣有你們的代理商嗎。 Is there your agent in Taiwan?

@smoothon 4 жыл бұрын

Thanks for watching! A full distributor list can be found here: www.smooth-on.com/distributors/

@Moradiya 4 жыл бұрын

How to make silicon bag? Any link?

@smoothon 4 жыл бұрын

Can you send us a tech ticket? Our team can help you - www.smooth-on.com/support/ticket/add/agree/

@user-mq2ik4is7o 6 жыл бұрын

Do you have an agent in Taiwan?請問在台灣你們有代理商嗎？

@owydiu 10 жыл бұрын

That's cool!

@Mike61259 10 жыл бұрын

How many times we can use vacuum silicone bag?

@smoothon 10 жыл бұрын

It depends on the type of resin used. Some resins are extremely chemically abrasive, but a platinum silicone bag offers superior resistance to these types of resins.

@mariamotilo9537 7 жыл бұрын

3 days

@projectdalekmark 7 жыл бұрын

And you spend the other half of time saved making the bag!

@4theloveoflife 6 жыл бұрын

it's reusable. so the time used making the bag only happens once.

@ze_german2921 4 жыл бұрын

5:10: Ford RS200?

@MrZeddy100 8 жыл бұрын

Is the resin pre heated ?

@KDD8 8 жыл бұрын

+MrZeddy100 no

@leloodallasmultipass 11 жыл бұрын

seat doesn't seem like it would be too strong... maybe they threw another layer or two of fabric on there before they bagged it.

@j.danaclark89 6 жыл бұрын

What is the expected life span of the bag?

@smoothon 6 жыл бұрын

This would depend on the resin being cast. Epoxies are more aggressive than urethane resins.

@332ARA 4 жыл бұрын

@@smoothon can it be used with urathane resin?

@Krzemieniewski1 7 жыл бұрын

What is lifespan of the bag? 10 or 100 cycles?

@smoothon 7 жыл бұрын

+Michał Michał it would depend on the formulation and speed of the resin

@sm870621345 10 жыл бұрын

Can vacuum resin infusion be done on a silicone mold? I really want to start vacuum bagging some props I make, but I'm a little worried about distortion. A hard mold for this particular prop is not possible. Maybe if I try it, I will just make my mold from a stiffer silicone. What are your thoughts?

@smoothon 10 жыл бұрын

Distortion is definitely a concern. I would recommend submitted a support ticket on www.smooth-on.com That way we can route your ticket to a vacuum bagging specialist.

@jobsailing 11 жыл бұрын

no comment on this Smoothon?

@user-mq2ik4is7o 6 жыл бұрын

請問在台灣你們有代理商嗎？ Do you have an agent in Taiwan?

@smoothon 6 жыл бұрын

Our distributors in Asia can be found here: www.smooth-on.com/distributor-regions/asia-indonesia/

@aimnas 11 жыл бұрын

nice job good tech, big up

@AboutComposites 10 жыл бұрын

I think this process unnecessary because of glass chopped strand mat, hand lay up enough for this materials.

@verdatum 8 жыл бұрын

Hand layup is not ideal for structurally critical pieces to get the optimal tension and compression strength. The vacuum infusion process allows you to get the ideal ratio of resin to fiber reinforcement, without the labor intensive process of rolling off excess resin. Also, when done properly, vacuum infusion has the benefit of practically eliminating the risk of hidden voids caused by some misbehaving unsaturated portion of chopped strand.

@federicoromero6130 7 жыл бұрын

thanks for educating me!

@4theloveoflife 6 жыл бұрын

also for people like me making parts in their garage the infusion process eliminates most of smell unlike hand layup.