first infusion tip

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#1

so i tried my first infusion the other day after trying to do some flat carbon sheets with conventional wet layup , but always getting some sort of imperfection in the piece

if you havnt tried infusion on a part where it is possible , i HIGHLY recommend it if you need a great cosmetic looking part

my sheet 1000x350 of 200gsm plain weave carbon and a layer of 80ish gsm glass came out PERFECT ! even though i had a leak

and this is the point of the thread … you have read how important a leak test is , IT IS !!

i knew i had a really small leak, but i couldnt find it , so when i clamped up i lost vacuum … the thing is when i did a test it held vacuum for a good 15-20 mins , but after infusing maybe 30-60seconds later and the bag started showing signs of slack

i guess i was just fortunate that my piece came out great ( i layed another bag over and bagged again) but now i know , if there is the slightest leak , it turns into a nightmare !

#2

Sounds like you double bagged the part. That is the easiest way to get around a leaking bag. The problem I have is having the guts to pull the trigger on using up another bag :eek:

Buying consumables in bulk is the way to go…

#3

My bagged parts keep vacuum for few weeks. If it only keeps vacuum for minutes it has a leak.
And that it is loosing vacuum within seconds after infusion is normal when you have a leak because after infusion there is no vaccum :wink:
Physics of infusion. Read the MTI and the double bag thread, there is everything explained.