what is the strongest resin for casting something

[irishamericanlad]

i am getting ready to cast this dragon sword handle but i wanted to see about what i can do to make it as strong as possible, and/or as close to indistructable as possible. I was told that people add kevlar strips to molds but i want to keep the handle as clean looking with all the defintition as possible...
so with that in mind who sells what im looking for?

what about fiberglass resin?

 

[Reactor drone]

Polyester fibreglass resin is very hard and quite brittle(like glass,hard to scratch but it will shatter) and needs reinforcing to add strength.A gelcoat layer will keep the kevlar/glass reinforcing away from the surface so you shouldn't be able to see it.

A better way to go might be a slightly flexible material,most solid urethane resins have a hardness around shore 80D so they're solid but have enough give to resist breaking.Urethanes also have lower shrinkage rates than polyester resins so your copy will be closer to the size of the prototype part.

 

[SgtFang]

i am getting ready to cast this dragon sword handle but i wanted to see about what i can do to make it as strong as possible, and/or as close to indistructable as possible. I was told that people add kevlar strips to molds but i want to keep the handle as clean looking with all the defintition as possible...
so with that in mind who sells what im looking for?

what about fiberglass resin?

Call this place-

BCC Products Inc.
2140 Earlywood Dr.
PO Box 327
Franklin, IN 46131
(317) 736-4090

Ask about a resin (elastomer?) called BC-8860, and ask if it comes in white or ivory. It normally comes in black, but I think itcomes in white or maybe translucent too.

When fully cured, this stuff is about the consistency of an unbreakable pocket comb. VERY tough stuff- we ran a Boba helmet out of it just for ****s and giggles once and were literally kicking it (hard!) around the shop the next day, and it didn't break.

The downsize is it's pretty expensive and it takes 12 - 16 hours to demold. but for your handle, it should be perfect! A quart kit would be more than enough. It's a little thick though, so you'll want to brush in a beauty layer before filling it, to make sure you get all the fine details.

Good Luck!

-Sarge

 

[punisher]

check this out, http://www.smooth-on.com/Urethane-Plastic-a/c5_1120_1157/index.html
Great company! If this isnt what youre looking for, try loking around on the site and you might find what youre looking for.

 

[Firefoxm31]

most urethane resins are very durable...but then there is Ulumilite not called that for any reason lol go check it out...it's been around for many years...a very popular choice for super strong resin castings back in the ole garage kit days

we used a resin from west systems that was a urethane and it was so strong you could slam it to the ground or hit it with a hammer and it wouldnt mar the surface...the piece we used for demonstration wa s a 1/6 scale Spock head, the kayodo one

Will

 

[SithLord]

This stuff is like steel but not too practical...

http://www.epoxy.com.pk/steel.htm

 

[fettster]

i actually made a solid cast out or smooth on roto. its designed to be rotocast but i have to say it was fantastic as a solid casting resin

 

[TK648]

Smooth cast 310
has the feel of injection molded plastic
and a trial kit $24.72 may be all that you may need
if only casting one piece.

Color: White
Comp. Strength 4500 psi
Pot life after mixing 20 min
Demold time 2 to 4 hours
Mixed Viscosity 80 cps
shore hardness 70D
Tensile Strength 2600 psi

 

[irishamericanlad]

cool guys thats why i come here... you guys are da-bomb... lol

 

[Yodajammies]

What are the differences between Smooth-cast 300 and 310? I don't have enough practical experience with durometer ratings and tensile strength values, etc, to really have a clear understanding.

I'm looking for a resin that has more "give" to it than smooth-cast 300, which can at times be rather brittle with some of the thinner parts. Is 310 a little more akin to the "pocket comb" material? Flexible but strong? :confused



(Sorry for thread jacking! Eep!)

 

[TK648]

What are the differences between Smooth-cast 300 and 310? I don't have enough practical experience with durometer ratings and tensile strength values, etc, to really have a clear understanding.

I'm looking for a resin that has more "give" to it than smooth-cast 300, which can at times be rather brittle with some of the thinner parts. Is 310 a little more akin to the "pocket comb" material? Flexible but strong? :confused



(Sorry for thread jacking! Eep!)

You may want to try a 70 to 80 shore urethane rubber
To be sure call smooth-on and ask.

 

[punisher]

I think Smooth on is the best resin company very professional and fast!

 

[LeMarchand]

What are the differences between Smooth-cast 300 and 310? I don't have enough practical experience with durometer ratings and tensile strength values, etc, to really have a clear understanding.

I'm looking for a resin that has more "give" to it than smooth-cast 300, which can at times be rather brittle with some of the thinner parts. Is 310 a little more akin to the "pocket comb" material? Flexible but strong? :confused



(Sorry for thread jacking! Eep!)

The difference is in the curing time and shrinkage Usually fast kicking resin will shrink more.

Another option for tough castings might be the "Task" range resins from smooth-on,