carbon wet-out consistancy issues.


Author
Message
jono
jono
Supreme Being (103 reputation)Supreme Being (103 reputation)Supreme Being (103 reputation)Supreme Being (103 reputation)Supreme Being (103 reputation)Supreme Being (103 reputation)Supreme Being (103 reputation)Supreme Being (103 reputation)Supreme Being (103 reputation)
Group: Forum Members
Posts: 11, Visits: 63
hi all, i'm having issues with the final part not wetting out enough consistently. I am using the same mould, same layers, same resin and temperature conditions. absolutely no leaks in the bag and obviously the same vac pump. it visually appears to infuse at the same rate every time but only 1/3rd of the time it's actually fully wetting out the weave. it seems to be luck of the draw for me? i'm using a low viscosity resin, pulling a vacuum for at least 40 mins before infusing. i've tried clamping off the vac line and resin line like the easy composites tutorial, i've also tried allowing the resin to almost empty the pottle and only clamping the resin line and allowing excess to reach the catchpot and letting it cure wit vaccuum pump going. also moving around the resin feed/vac lines. i honestly have no idea what the cause is. would appreciate any help here.

this is what my parts come out like 2/3 of the time.




yet sometimes my parts come out perfect like this (same exact mould)-ignore the traces of clay on it-




any idea what could be doing this? i'm doing a fully dry layup, no glue or gel coat (its a brake duct) should i perhaps consider brushing/spraying a fine layer of resin down and allowing it to almost fully cure to a late stage of tack and then layup/infuse? 
Reply
ChrisR
ChrisR
Supreme Being (2.8K reputation)Supreme Being (2.8K reputation)Supreme Being (2.8K reputation)Supreme Being (2.8K reputation)Supreme Being (2.8K reputation)Supreme Being (2.8K reputation)Supreme Being (2.8K reputation)Supreme Being (2.8K reputation)Supreme Being (2.8K reputation)
Group: Forum Members
Posts: 363, Visits: 3K
when using certain cores you can't pull a full vacuum otherwise it crushes, you use the regulator to control it
GO

Merge Selected

Merge into selected topic...



Merge into merge target...



Merge into a specific topic ID...




Threaded View
Threaded View
jono - 10 Years Ago
fgayford - 10 Years Ago
JustJDee - 10 Years Ago
FLOR - 10 Years Ago
ChrisR - 10 Years Ago
jono - 10 Years Ago
FLD - 10 Years Ago
jono - 10 Years Ago
JustJDee - 10 Years Ago
jono - 10 Years Ago
matthieutje65 - 10 Years Ago
Hanaldo - 10 Years Ago
20_rc51_00 - 10 Years Ago
Superleggera - 10 Years Ago
20_rc51_00 - 10 Years Ago
Superleggera - 10 Years Ago
ChrisR - 10 Years Ago
Hanaldo - 10 Years Ago
jono - 10 Years Ago
20_rc51_00 - 10 Years Ago
jono - 10 Years Ago
VVS - 10 Years Ago

Similar Topics

Reading This Topic

Explore
Messages
Mentions
Search