After 3 fails its time to ask where i go wrong..


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jeffrey bres
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As mentioned..   3x not a charm here.

I have this isseu every time.
Clearcoating without gelcoat would be an option. But allso that isnt easy with small holes like this.

Now i used gelcoat. Hoping it would help.

Gel had cured at 25 degrees for 5 hours was dry to touch.

I used 3m high tack clear spray adheasive to hold the fibers in place. (AS LITTLE AS POSSIBLE)


on the vacuum catch pot the dail says my vacuum is 100%
I leace the pump running over night.  In the morning when the resin is hardned the vacuum line form the ez composite starter kit to the pot is flat from the vac. 

(I dont have an official cacuum pump.  I use a 35l/m fridge pump. Whitch seems to work fine.   I can add an extra pump if i need more cfm...)
If my vac is to strong.. i can make a bleedvalve to reduce vacuum.   

But idialy i would love to have a perfect finish.

I use easy lease release agent..  denoulding is a breeze..




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jeffrey bres
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Hanaldo - 4/19/2021 1:12:46 AM
Based off your measurements I would estimate you need 700-750g of resin. 

Fibre:resin ratio should be ~60:40, so you need about 450g of resin (I like to round up) for your 650g of reinforcement. 

Mesh will take about 700g per square metre. Peel ply is pretty negligible unless you are doing bigger infusions, its about 80g/sqm. By rounding each calculation up, I find you tend to compensate enough to not worry about calculating for peel ply, and hoses, and then depending on infusion size I might factor in a little bit of wastage in the bottom of the pot as well.

Ok so if i would say. 40 resin to 60 reinforcements  you sayd 450.(lets keep that number for now)  plus 400 for he mesh peel and extras. I would have enough.   My hoses are short..   that sayd.  I was lean in resin im definantly sure.  I cant remember making 850 gramms resin.   Would be more like 650..    

Il keep a closer eye on the resin count.   

I allways thought i needed less resin with infusing. But ending up using more. Lol.   I do get the point though.  The extra mesh and all use up a lot.

How stupid can i be! Lol

GO

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