Materials | Fibreglass Laminating Resin.
hello there I thought a video today about laminate and fiberglass since I'm
on my last two molds so I thought I would do a materials video about
laminating fiberglass so obviously this is in relation to the fiberglass videos
on the channel so this is just to add on to that so this video is just to
complement the other videos about using laminating fiberglass so as you can see
there's a mold I made earlier in the year which i think is on the channel or
briefly which is a fossil mold because you've got a latex mold inside and that
creates a replica of an original fossil which incidentally is 500 million years
old the original fossil this is about six months old so anyway the fun glass
resin I use polyester resin is Christic four four six PA now she says Christic
two - four four six PA on the sheet here I haven't got the balls in my hand
because they're all a little bit messy and having the workshop of course I
don't want to get resin all over the place and all the mucky bits and pieces
so anyway Christic four four six PA Christic two - four four six PA or four
four six PA is a pre accelerated thixotropic spray of viscosity polyester
resin with a low styrene emission it's rapid wet out low exotherm and fast
hardening characteristics make it ideal for spray applications which require a
fast mold turnaround of course we don't use this I don't use this in the spray
application that just use it brush on the brush on laminating purposes
variants giving a range of gel tones and viscosities are also available during
the sprint phase styrene emissions from Christic to 4/4
pa are considerably reduced compared to normal spray applied resins again the
the spray doesn't apply to why I use it for well not in this moment in time
anyway so you got formulation here Christic
four four six PA and it's variants should be allowed to attain workshop
temperature which is between 18 degrees Celsius and 20 degrees Celsius I don't
know what that is in Fahrenheit selected to put them their conversion they need
only the addition of a catalyst to start the curing reaction so we'll go into the
catalyst in a moment a color change mechanism is incorporated into the
Christic 2 4 4 6 PA and dis variants to indicate the presence of catalyst after
catalyst addition the resins will change from blue to green then to a yellowish
color before agile ation the mold resident workshop should be at or above
15 degrees Celsius before curing is carried out supposed curing satisfactory
laminates for many applications can be made from Christic 4 4 6 PA and its
variants but curing at workshop temperature 20 degrees Celsius some
increase in properties may be obtained by post curing the love inert should be
allowed to cure for 24 hours at 20 degrees Celsius and then be oven cured
for 16 hours of 40 degrees Celsius well I've never put my molds into an oven and
they're fine for I need the fog glass for which a policy of the molds so now
on to the any KP catalyst or Mecca PSA because it's easier to say a lot about
as I said any KP any KP m EK p stands for methyl ethyl ketone peroxide
solution in and dimethyl fourth a late i don't know you say that fourth a late so
I didn't know them anyway me KP for short or Mecca P so I stated with the
resin we mix Macca Peggy with the resin at between 1%
2% I tend to put 1% in and the temperatures are pretty sore stable over
here anyway and even him even now the weather here in the UK is relatively
mild is probably around a bow or a 10 degrees here but probably a little bit
higher in the workshop you can slow down the curing process by another little
less an e KP or speed it up by adding a little bit more
so are there additions you want your acetone to clean your brushes and clean
everything up after you've used the fuck glass resin for whatever application
you're using it for in my case molding so clean everything
that you use rubber gloves latex gloves I use here and of course you need for
the laminating for the molds the chops track months until a fiberglass video at
the moment your life on drama Mouse TV so of course you want your chopped
strand mat also and I use the 450 G SM strand mat so I don't use anything else
I think that's pretty much standard so that's all I use I don't know a lot
about the other grades of strand mat although I do use this very fine strand
mat sometimes just for finishing things off but very rarely do I use that
so don't with everything else you need your pots to mix the resin in and mix
and sticks some to the mix on to which you could see in other videos anyway
maybe this videos about the polyester laminating resin oh dear and so you go
alongside the other videos on the channel so I mean I hope this helps see
you soon and over and out for now
you