Casting Molds

[Jim]

I enquired about these moulds as i thought that they would be great for my PR casting due to the problems i am having with the PR sticking in the tubes etc. The guy Fred, got back to me with the posting costs at $60 as he uses a tracking due to losses here in the UK. My order was for $118 .. Now i am undecided to whether it is worth it or not ...

Custom Silicone Pen Molds

 

[Jimjam66]

Jim, before you blow a wad of cash why not check out the mould-making tutorials on IAP? They look fairly easy and you could have a few tries for $180! (The link is to the 'Casting' section of the IAP library, just scroill through to pick up the ones about making silicone moulds.)

I haven't tried it myself, I must confess although I intend to quite soon.

Oh, you have to be a regsitered memebr to see/download the tutorials but it's free if you're haven't already registered.

 

[turnaround360]

Hi Jim ,Yes Jimjam is right go to iap library look in casting scroll down and theres one made of wood
you will need need the pouring silicone from ebay about 19 quid say a fortune good luck i am going to do it when my shed is sorted,Frankie.

 

[turnaround360]

Oh there you go,
RTV Silicone Moulding Rubber 2.08kg kit Shore A28 Fast Curing | eBay

 

[turnaround360]

Or this 1 Jim,
Silicone RTV Mould Making Rubber Shore A 30 1Kg kit | eBay

 

[turnaround360]

Jim just an idea i am going to try when i'm set up, is take your pvc tube cut to the size you want to cast
drive a Stanley knife straight down its complete length bind it with masking tape then cast after cured cut down tape
then just twist in your fists should release, what do you think? Frankie.

 

[turnaround360]

Sorry Jim ,when i say drive the knife down it i mean 1 cut to form a seem not split in half cheers Frankie.

 

[Jim]

Thanks for the info guys, your correct, i am sure it can be done with a little practice ...

Frankie, i am not sure if you idea would work, but i may give it a go this weekend if i have problems with my last casting as i sprayed these with a releasing agent ...

 

[Jim]

This is the one that i would like to emulate more than any other.

 

[turnaround360]

Jim check these out.
Day 1 #2 Molds & Making - YouTube

 

[Jim]

Thanks Frankie, very helpful ...

 

[ataylor]

I was toying with the idea of doing some moulds, but i will leave this to my mate Jim.

I know where to come for a freebie

 

[Jim]

Sure you was a seagull in your last life ...

 

[Jim]

Sent off for this last night, hopefully it will be here at the weekend, lets see how it goes ...

Silicone Mould Making Rubber

 

[turnaround360]

wow Jim you dont hang about mate welldone look forward to your next update Frankie.

 

[Jim]

Well i made the mould template using 3/4 plywood, the box is 6" x 6". The rubber mould will be an open one for making slabs. I have placed two corian slabs 5½ square in the box to form the pouring area. I made the mistake of not spraying the box with mould release before poring it ... It was stood right beside me to ... I may get away with this as i screwed all the sides together rather than glue them, so hopefully when i take it apart it will come free easily.

 

[turnaround360]

how was the silicone to mix Jim.

 

[Jim]

how was the silicone to mix Jim.

Very easy to mix, but loads of bubbles, so i had to slow down with the stirring. If i was to do this regular i would look at getting a de-gassing chamber, on the cheap of course ...

 

[turnaround360]

I am making one won a speedivac pump on ebay needs refurb but for 99p if it dont work a well.


Speedivac Vacum Pump / British Thompson Houston Motor | eBay

 

[Jim]

That could be a good buy Frankie ... Hope it works my friend.