How to make a Simple Fiberglass Mold and Part without Gelcoat /// Lasikuitumuotin ja osan valmistus 

Awesome job, no bullshit, no talking rounds and rounds, just clean and clear steps and clever ideas to get the job done, you just got another subscriber.. Peace!!

Thank you for actually making steps obvious for people who have never worked with fiberglass before. I was looking up tutorials for working with molds to hopefully make a pair of hooves for a costume, and the ones that I had seen were going about without much instruction or detail. :)

Easy to understand and straightforward. Your work looks good! Thanks for the video. I needed a good quick video to send my brother because we live about 600 miles apart. This was perfect.

Excellent...this was the best video tutorial of fiberglass I have ever seen, Thank you

Great video, i've being looking at videos on how to do this for ages and this has cleared everything up for me thanks!!

Great vid,I just started playing with fibre glass and was in the mood to see how moulds are made. I liked it, Music was annoying however,Over all i got some good tips, THANK YOU!

That was an excellent I liked the fact that you explained the steps all throughout awesome this video was very informative peace out

Terrific video, well done on speed and commenting - not sure i have the patience for this work even at high speed!

This was a great video, very informative. I'm going to build a custom speaker box for my trunk with with fiberglass, this video will help me. Thanks.

This was fascinating to watch. Thanks for sharing this!

Cool video. Learned some good tips. I want to make a fiberglass bow for an inflatable boat. How many layers of fiberglass do you think I would need? What material could I use to make a mould for it? Thank you!

thanks for the vid! massive amount of work. wish you would have shown the final product at the end.

So I have a question... I'm trying to make fender flares for my car out of fiberglass, but the shape is really round. I'm thinking of using expanding foam and then shaping the foam the way that I want, then use body filler to smooth out imperfections, then primer it (gel coat??), wax, then layer the fiberglass over that... My question is is that a good process or what am I missing? I want to be able to reproduce them, so would I use the fiber glass as a mold or the foam shape as a mold? Thank you

Excellent video tutorial. Picture of the finished product would be interesting to see.

i have been working over FRP pipes and tanks for installation n repair, after watching this video my work seems relatively easier. :)thanks for video and as others said for some details n gel n final products seem ok both ways. any idea how to calculte the strength of part in case using as structural element?

Hello professional, how many ml of hardener for every 200ml of resin? And what about cobalt, don't you add it to the mix? And on what ratio?

I made a mold for car door panel handles but when I casted the product in it it got stuck so badly in it I had to broke the mold unwillingly Off course I applied the release wax b/w them -what you were thinking

I've seen other videos that say you can use the resin without any hardner so you can have more time to shape your mold

awesome video....but, can u please specify the resin u have used??

Kiitokset videosta! Thanks for this video!

I always use gel coat as working the matt scraches through the release medium then the GRP sticks to the object I am trying to take a mould off. ,Brill video.

Good work. I would have loved to see the finished product.

Can you please tell the approximate weight of the part you made(only the one made with Fiber Glass) Cheers mate!!

In the UK it is now winter and I have a camper van roof to repair, do you recommend 15 centigrade for fibre glassing or very near 15.

Enjoy the journey - not the destination. :] I'll upload a pic of it someday. It's currently happily attached to the hatch and functioning properly.

Nice vid, would have cut the glass in the final part in overlapping strips, instead of all small sections, it will make your part much stronger because the seams won't be on the same place for every layer. Maybe this part doesn't have to handle bigger loads??

would be better to use a gelcoat, saving you time filling the little pinholes and sanding after demoulding... why not adding the finished product at the end of the video?

Rollering the resin out, does this compact it and make it stronger.

Thanks for the video, it was very helpful!

Many thanks for sharing, great speed rock tunes!

My suggestion is to actually pull the mat, apart, into strands that will readily conform to sharp curves as you have here in the shut edge ,(Where you notice the roller is just pushing resin under air trapped mat. A manual ,human,chopper gun ,effect.The resin will still bind the glass strongly but it will confirm alot faster. Another point,always strive to make molds that are in sections. Even a simple Box mold like this, Should be build with the idea of ,dis assembling,the mold from the part. Instead of trying to pop ,or pry a part from the mold. Just takes one more step in design,to make parts that will ,more easily,removed with less harm of fatque . It takes alot of time to make "any video" I applaud your efforts.

Great vid, would love to see the finished product though

Great tutorial but, wow, kill that music. I had to turn off the sound.

Great video BIGMONSTERBLOCK I have bee making some jobs with glass fiber but i got a lot of tips, my level is very low but i will like to get some tips about cleaning the tools like the roll how you clean it and what you use to clean it I used som thinner to be able to use again the brush again but i am living in Norway and every thing is so expensive any tips ? I don't want to contaminate more than necessary ;-) I am planing to make a copy of a bumper i want to reproduce and i will like to test different materials like epoxy or plastic if i can get some think more flexible than glass fiber but that still strong enough to make a bumper thanks in advance Cheerse Clandestino

Personally, I appreciated the video. If everybody is so good, why are they bothering to watch 'how to' videos anyway? I did have some concerns, mainly I had to keep stopping and backing up to see the written explanations because they weren't up long enough to read. I was confused by why you filled the indents with wall filler, since I assumed you were trying to duplicate the original??? (But I've used plaster of Paris for filler myself, and it was reassuring to see that somebody who apparently knows what they are doing does something like that. Your video answered my main questions, mainly about laying up without using Gelcoat...thanks. (Oh yeah, I turned the sound off. :) )

yup,gasserglass is the man

You deserve bigggg like

well..so much for trying to create a chin spoiler for my harley! thought fiberglass would be easier that that. nice work bro. it would take a 10 years to be that good and make 1 mold. if u get,bored...send me a reply...I have a harley davidson sportster that could use an aggressive chin spoiler!

HI BIG MONSTERBLOCK. you said you where using only one layup of resin fibre. but i counted four. but the vid was cool. mick

it seems to me that you don't have alot of experience in building molds. you've made this so much harder than it needed to be. although some of the basics are covered in this video, I would suggest people look elsewhere for proper mold building tutorials.

rolling out resin seems ok but even if its not still it is good coz E glass is brittle and more resin would increas its toughness which is less in case of less resin to glass ratio. in case of repairing the parts it seems appropriate to roll out resin for better chemical bonding plus mechanical also on surface profile achieved by sanding. but as i said its a good video anyway

How about to dismold?

Great, many thanks realy good done

Oii mate, Thank you for the lesson

Looking Good!

Thank you for the video!!!

great video....thanks for sharing

Great vid.

Wheres the finish product?

What? After all that we don't get to see the finished product? What a ton of work but nice job.

Oh Great ! We don't get to see the finished product.! It's like pulling out too soon..

Please show the final part

Lovely council house motorhead music....

Can't believe I just watched that to the end and listed to that noise during, and didn't even get to see what he was making..

Great tutorial! But..arggghhh! ... after all that, you didn't show us the finished product! Tease!

I guess same process can be used to make a fiberglass mold but make the part with carbon fiber

no finished product ? lol

Generic rock music playing in the background. Its like supermarket music but worse. Its just shit and loud.

its very good

Didnt see end product

Bus fiber glass body part make send

Interesting did not show finished part. Half ass vid must be a half ass part. No wonder.

yup, wasted my time watching half a video as there was no finish product. I think you should have watched an instructional video on mold making before putting this up. And for what it's worth, did not like the music. Felt like slicing my wrists. Other than than that I thought it was great!

no ..............................................................clueless ....................WHY? Unbelievable

Thank you sir. The resin is basic polyester resin from a Finnish supplier called Terpol. The name of the product is Crystic PD7959. You can also get good quality resins from a website fiberglasssite . com/

Music too loud you're not taking about nothing because you're not telling me the steps play music while you're working I thought it was about teaching somebody but I did see a couple steps and I really like that you done I just wish I didn't hear all that junk in the background a man needs music but not that loud

I love when people make a video you have to read! WTF? Their is a place for pictures and "Reading How To's",,,,,it's called a forum. Oh,,,,,Wait,,,,,then you would not have the music in the background. THANK GOD! Where the hell did you find this crap music?

16 minutes invested and I don't get to see the final part? boo

good video easy to follow but that bloody noise ! yuk

the music is irritating...

It was too bad that you were so pressed for time that no one could read what you wrote on the screen before you took it off to put another long message on the screen that no one could read & absorb either.. I'll be looking at someone else way's of doing this instead of yourn.... Have a nice day LOL P.S. The crummy music SUCKS too!

What seemed like a good video but stopped watching as I found the music too loud & very off putting!! Just being honest & I'm partly deaf in both ears!!

A tutorial video with music blaring and no talking....? Good job.

back ground music suk....

I clicked on this to se how a mold was made not to listen stupid music

Weirdest butt rock I\ve ever heard.

no finished product, fail

Wow, what a waste