Just infused last night, used 663 grms of resin (VE) + 1.2% MKEP. how long do you think i should wait. last time i waited 1 day and it still wasnt fully cured. im going to let it sit for 2 days now.
It so much depends on temperature, if you push on the resin in tube is it solid? I infused a few parts at 10.00am and they are ready to come out of the mold now at 6.00pm but all my molds are heated.
Forgot to mention it is epoxy with a fast hardener. I have a slow and fast hardener which can be mixed to produce various infusion/curing times.
Baz
i also have an epoxy resin for infusion. but when i was using super77 it didnt eat the tach spray. ive used airtac2 with VE and it eats it. i havnt tried using airtac2 with epoxy.
i had a prob where eat layere of CF was pulling apart b/c of the tach spray. ok ill let it sit for awhile before demolding. i think the best way to tell is by smell. last time i took a part it fully cured, i didnt smell the ve.
are you using any gel coat?
yup, i let the gel coat fully dry.
Temp, resin system, and catalyst/hardener all have a large effect on cure times. Your best bet is to follow the technical data sheet that accompanies your resin.
it all varies =
i used 1.3% and it dried once during the infusion. i now use 1.2% and its not curing fast enough. ugh. ok ill see what happens
have you tried using the tackyness of the gel coat so you don’t have to use tach spray? It has been YEARS since I used tach spray on my surface.
well… its not so much the 1st layer… but the following that i need it to stay in place on complex shapes.
If your spray glue isnt desolving then your spraying too much/too close.
Lightly tapping the nozzle for a milisecond is enough in most cases to hold the cloth in place.
I think i might also have a prob with the media flow i used. even thou the blue media is GREAT and travels fast, i think it traveled tooooo fast.
what happens if it does? i only have 3 layers of 9 oz fabric. is this ok and will it saturate (sp) everything?
I have some stuff that runs too fast and depending how many layers and the viscosity of the resin mine usually always saturates
part came out perfect!
awesome good to hear! sometimes if I have like 4 or 5 layers of carbon and it runs too fast I have had dry spots