Materials | Polyester Casting Resin
right so here we are talking about
polyester casting resin so obviously
this is polyester resin we use polyester
resin for laminating which is a
different type of resin well to a video
on laminating resin resin surely these
fish fins here are made from laminating
resin so that's using fiberglass with
the laminating resin this stuff is
similar but not the same so this is for
casting straight into mold so you get a
solid cast you just pour this into the
molds as obvious if you got Tim here and
it works in the same way as laminating
resin so if you're familiar with that
this is pretty much the same process so
when you measure out your quantity of
your base resin and mix in the Emmy KP
same as laminator resin the one or two
percent which all secures the actual
resin here to make it go hard and you
can pour that straight into a mold a
silicon mold preferably or anything
there is compatible with this type of
resin here's a resin cast of a gargoyle
it's obviously painted so you can't see
the actual color but now you know say
resin polyester resin casted figurine as
opposed to white used mostly for casting
which is polyurethane resin so there's a
mask that is being sprayed in gray
primer don't have a silicone mold here
which is of a fairy door which is be
featured in some of the previous videos
how to make a fairy door from clay plus
this silicon mold
so he's a silicone mold in an upcoming
video to use the polyester casting resin
so this is Christic 92-93 polyester
casting resin Christic 9 to 9 3
unpigmented polyester casting resin long
viscosity unsaturated polyester resin
low reactivity pre promoted to cure at
room temperature when initiated with any
KP catalyst which is there of course
which we just showed low shrink
resistant to weathering good air release
especially promoted short gel and cure
times kristenh99 3 is able to accept
high filler loading which Able's you to
increase or decrease weight depending on
the type of filler powder added so we
can go to fillers in a later video
Christic 9 to 9 3 should be allowed to
obtain workshop temperatures 18 degrees
celsius to 20 degrees Celsius before use
they need only the addition of a
catalyst to start occurring reaction
they kind of changed mechanism is
incorporated into Chris --tx 1993 to
indicate the presence of catalysts so
properties catalyst ratio by weights
1% to 2% of resin waste
weight appearance pink cured color pink
brown shelf-life 3 months viscosity 315
so he got catalyst ratio here so like we
said any KP should be added at 1% or 2%
of the resin weight so at temperatures
of 15 degrees Celsius with 1% any KP gel
time will be 60 minutes 2% 40 minutes 20
degree 20 degrees Celsius 1 percent mekp
40 minute starting off time 2 percent 30
setting off time or jail time 25 degrees
Celsius 1% mu K P jail time
25 minutes 2 % m EK p 20 minutes so you
got an example ratio here this what's
easy to work out I think we all know
what 1% of 100 is or 2% of 100 we can
just transpose sine to the measurements
which we use so example ratio 100 grams
of resin is 1 milliliter or 1% cotton
catalysts 1 kilogram of resin 10
milliliters what was then catalyst stir
so there we are polyester casting resin
I'm hope this video is useful see to a
demonstration surely in another video
using this silicon mold of a fairy door
and will then use this polyester resin
to cast a door up so anyway thanks for
watching and over half now