Learn fiberglassing: how to make a cardboard mold

This tutorial is about making molds with simple materials to make a fiberglass part.
It is difficult to get much accuracy with cardboard, but the better the mold, the better the part... so, we can get a good result.
Repairs can be made with body filler.
The mold release agent is a mixture of polyvinyl alcohol and hydrated ethyl alcohol (1:1).
What I mix with the resin is the catalyst/hardener that comes with it (as oriented by the manufacturer).
While working with fiberglass, always use equipments for individual safety.

[bigpaul]

Thank you for the great video, aside from the fact that people are nitpicking the "Demo" vs "Tutorial", good grief get a life people. It was very clear, even to a complete novice like myself, on how to create a mold and lay fiberglass. Thank you.

[onlyKRIZAN]

heard "garage" three years ago could not find out who created it. Thank you for pointing the artist. Great idea on fiberglass. May the wind always be on your back, you shall travel far in your life

[Wooley]

Damn good idea using the plastic film, I have to use that.

[ninehundreddollarluxuryyac]

Nice part. Using the contact paper was a nice trick. Waxed paper works for a lot of things, but the adhesive on the contact paper makes it useful in a lot more situations. Will definitely try this next time I need to make a shape.

[jdcustomz]

Great tutorial!.
Thank you. Hundreds of videos i have watched over the years and this is perfect for simple molds.
Thank you!!

[jessbubb]

Sometimes its the simplest information like this that make the difference... thanks!

[maeghendaly]

This is immensely helpful for me. THANK YOU SO MUCH!

[thegreenmachine.]

Looking to make a hard top for my van. Thanks for intro to fiberglass mold making!

[Castro]

Awesome video! I've been looking for something like this to create my own moulds. You made it so simple. Thank you

[walkertongdee]

Take that fiberglass part fair one side gel coat and reinforce it and you have a mold. Then that cardboard mold was essentially the plug, Cool vid...

[jpreffre]

Bjr c’est quoi le Pva que vous utilisez avec l’alcool comme agent démoulant ? Merci super tuto je dois faire une casquette pour mon bateau mais c’est la première que je vais de la résine 😬 👍🍻JP du Var

[shreyasmathuria]

Can you pls suggest how much thick flat strips should be made for a bow limb and what thickness fiberglass ROVING / MAT to use with which resin.
hope the process would be same as shown in the video
thanks

[baltsosser]

nice use of the contact paper for mold release

[kelso_kelso]

Awesome video. I learned so much. Just wanna ask what alcohol you mixed with the pva and in what ratio.

[gazsto]

How many layers do you recommend, wanting to make a support box and container for holding water. would be lined with HDPE liner.

[tiptop]

Excellent tutorial, dissolved hand soap will help u as demolding agent . cheer's!!

[ms_vibe]

nice video! thanks for making me realise I can use spray bottle for applying PVA

[BestPlconEarth]

I watched this video again and wanted to say nice freehand cutting skills!

[fineaqua]

Can I add fibreglass modification to an existing-cured fibreglass object??

[gd]

What is that cloth like material under the fiberglass?