Fiberglassing....

[Mr.meyhem 10+ year member]

I found some fiberglass mesh and resin, and i understand that you basically layer it on a rough shaped wood design you have, then sand, prime and paint. but are there any special techniques to it? laying the mesh different directions? how much resin to use? all that stuff.

thanks in advance.

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[kramer_212 10+ year member]

if you do more than one layer i would mesh in diff directions the bassic "function" of the mesh, much like steel rebarb in buildings, is to keep it from cracking and of coarse adds strength, but i wouldn't worry about the direction to much.

 

[Mr.meyhem 10+ year member]

i was thinking bout laying the first layer the same way as close as i could get it and then layering diagonally over that. is there any rule of thumb on how many layers is prbly too many?

 

[kramer_212 10+ year member]

i was thinking bout laying the first layer the same way as close as i could get it and then layering diagonally over that. is there any rule of thumb on how many layers is prbly too many?

i cant really tell you how many is to much, i have done 3 layers before, waiting about 15-30min in between coats

 

---------- Post added at 10:50 PM ---------- Previous post was at 10:50 PM ----------

 

i cant really tell you how many is to much, i have done 3 layers before, waiting about 15-30min in between coats

and its rock solid //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

---------- Post added at 10:50 PM ---------- Previous post was at 10:50 PM ----------

 

where are you in mn?

 

[Mr.meyhem 10+ year member]

owatonna. its between rochester and mankato.

 

[Mr.meyhem 10+ year member]

where u at?

 

[Mitch86 5,000+ posts]

What exactly are you trying to achieve? Are you trying to build and enclosure? Speaker pods?

 

[Mr.meyhem 10+ year member]

yeah for my tweeters.

 

---------- Post added at 11:26 PM ---------- Previous post was at 11:25 PM ----------

 

and maybe another enclosure for some 6.5 stock speakers that I pulled out that I'm just going to throw in back until i can get another pair of comps

 

[Mitch86 5,000+ posts]

Check out fiberglassforums.com, there's a lot of good info there. Basically you'll need to build a "skeleton" wrap it in some sort or strretchy material, cover it in resin and then apply your mat/resin. Do some research and take your time. Fiberglassing can be tricky, but its not too difficult if you understand what you,re trying to do.

 

[kramer_212 10+ year member]

where u at?

sorry was taking a test lol, i replied to your pm worthington.

 

[Mr.meyhem 10+ year member]

so I'm looking at the fiberglassforums. and it looks like i should put shirt or something around my rough design of wood to help give it shape?

 

[dragonrage 10+ year member]

Yeah, people often use a shirt as a first layer as it is stretchy and fiberglass is not. You then saturate it with resin and use it as a layer to stick the fiberglass to. Tear (as in not cut... preferably, anyway) the fiberglass mat into small strips which you will overlap a bit as you apply it.

Read as much as you can and watch videos of other people doing it.

 

[pro-rabbit 5,000+ posts]

When the item being glassed will not be supporting large amounts of weight or pressure from an enclosure, there are many things you can do then. Several will seed up the process greatly but does lessen the strength. All depends on your wants and needs.

As for sanding...I did my doors and sanded them for painting. I won't do that again, that is what employees are for haha. I'm not the patient enough with my own projects.

 

[dragonrage 10+ year member]

Sanding isn't that bad with Bondo... but if you have other people to do it for you, so much the better.

 

[pro-rabbit 5,000+ posts]

Sanding isn't that bad with Bondo... but if you have other people to do it for you, so much the better.

Sanding in itself is easy. However, when you sand for paint it takes a while. I had my doors sanded to be as smooth as the a regular panel outside. Devil is in the details lol when painting. Slack there and everyone will know when it is done.

I don't mind doing it for customers as I/We are payed to do it. I'm just not to keen on doing it on my time for free.