I Cant Get My Mother Mold Parting Shim Work!

[LastSpartan]

On a side note, why is this in the noob forum?

^^

Also, a 2 part mold wouldn't work?

Like Adam's ODST? (Maybe it wouldn't work with plaster, but with fiberglass/plasti paste?)

 

[Dark Rogue]

My bad, didn't notice you posted that.

 

[Nicktendo]

Also, a 2 part mold wouldn't work?

Like Adam's ODST? (Maybe it wouldn't work with plaster, but with fiberglass/plasti paste?)

No, not unless he filled in the gap between the two points of the brim. The ODST doesn't have that problem, so a 2 part mother mold works.

I thought the same thing though, till I realized that...

 

[LastSpartan]

Not sure what you mean.

So how's the best way to make the shell?

 

[Zaso117]

It kind looks like the brim warped a little in this pic, but cameras always can do funny things to pictures.

 

[FinnishSpartan]

It kind looks like the brim warped a little in this pic, but cameras always can do funny things to pictures.

I think it's because the silicone is loose in that pic (i took it off put it back in there)..
And partly because of the camera maybe.

-Finish

 

[Dark Rogue]

You're avoiding the question, Finnish... :rolleyes

On a side note, why is this in the noob forum?

 

[FinnishSpartan]

New questions:
So i'm starting up on my new mother mold this weekend,
I would like to know if i could make my mother mold using bondo... Sean mentioned about it saying that i should reinforce it with fiberglass... what did you mean by this?

Also if i make a fiberglass mold, how am i supposed to use a release agent? if i use one wont it just get mixed with the resin? Or do i need a release agent at all?

And what would be the best way to make the "parting lines", what material?
I tried modelling clay but it doesnt stick to the silicone..


Thanks!

You're avoiding the question, Finnish... :rolleyes

umm... mm.. No comment.

-Finish

 

[Sean Bradley]

Erp... read my comment again:

Resin or even bondo/resin is a good material for a mother mold, provided you reinfoce it with some fiberglass or something.

Bondo alone may not be rigid enough for a good mothermold.. I suggest a 50/50 mix of bondo with polyester resin.. with fiberglass reinforcement.

I PM'ed you back about all these questions, check your inbox.

BTW Vaseline is a good release agent when making mother molds.. it's thick enough that your seperate fiberglass/resin pieces won't stick to each other.. just be sure to cover the entire matching surfaces... and a little beyond.

 

[FinnishSpartan]

I know Sean thanks for your message, i just wanted to see if other members had other solutions too.
(i send you the PM and edited this thread at the same time).

Thank you for your information it was really helpful, i mean REALLY helpful. I should be able to finish tuesday or wednesday.

I'm still trying to find <petroleum jelly> (vaseline), I cant find it anywhere here in switzerland.

-Finish

ps: Yes, i did read your comment I was just very confused on the part, how i apply the bondo..

 

[contec]

<div class='quotetop'>QUOTE(Finnish_Spartan @ May 25 2008, 10:45 AM) <{POST_SNAPBACK}></div><div class='quotemain'>I know Sean thanks for your message, i just wanted to see if other members had other solutions too.
(i send you the PM and edited this thread at the same time).

Thank you for your information it was really helpful, i mean REALLY helpful. I should be able to finish tuesday or wednesday.

I'm still trying to find <petroleum jelly> (vaseline), I cant find it anywhere here in switzerland.

-Finish

ps: Yes, i did read your comment I was just very confused on the part, how i apply the bondo..</div>


You might find vaseline in the medical stores (pharmacuticals)

 

[FinnishSpartan]

Do you think i could just "skip" the vaseline since the silicone doesnt really stick to anything.

-Finish

 

[falcon NL]

NO!

Vaseline is very cheap and EVERYWHERE on this planet available. It doesn't matter if you silicone is "sticky" ( i would be worried if it did...).If you place your molder mold material on your silicone it will combine/stick to each other and your mold will be ruined.

 

[Sean Bradley]

Did you try cleaning the surface of the silicone with acetone like I suggested?

 

[FinnishSpartan]

Did you try cleaning the surface of the silicone with acetone like I suggested?

Yeah, didnt work either
Even tape doesnt stick to the silicone.

And falcon, i cant find Vaseline here.. I live in a french speaking area and when i go to the stores and ask "vaseline" they hazz no clue what i'm talking about. I checked a dictionairy, Vaseline is Vaseline in french..

-Finish

 

[Sean Bradley]

Ask for petroleum jelly, I think thats the non-US branded term for it.

Should be located in the first aid section of the drug store

 

[FinnishSpartan]

Ask for petroleum jelly, I think thats the non-US branded term for it.

Should be located in the first aid section of the drug store

Here petroleum jelly is translated as vaseline the french language doesnt have "petroleum jelly" in it...
And i have unfortunately noticed that anyone here who knows how to speak french, cant speak english AT ALL.
When you go to the german speaking area (in switzerland) Surprisingly everyone speaks english.

I will look into another drug store, I couldnt find any at my local store.

Also, do you think turpentine would work instead of acetone?

-Finish

 

[Sean Bradley]

Also, do you think turpentine would work instead of acetone?

If you've tried acetone already I don't see any need to use a greasy solvent like turpentine. Acetone is king of the solvents!

 

[LastSpartan]

Yeah, didnt work either
Even tape doesnt stick to the silicone.

And falcon, i cant find Vaseline here.. I live in a french speaking area and when i go to the stores and ask "vaseline" they hazz no clue what i'm talking about. I checked a dictionairy, Vaseline is Vaseline in french..

-Finish

I can speak english. Gelée de pétrole. But here, we say Vaseline... and I live in a french area...


Proof : http://fr.wikipedia.org/wiki/Vaseline

 

[FinnishSpartan]

I can speak english. Gelée de pétrole. But here, we say Vaseline... and I live in a french area...
Proof : http://fr.wikipedia.org/wiki/Vaseline

I know, the translation from petroleum jelly (en francais) is Vaseline, same in Finnish.. We cant hazz word Vaseline.

-Finish

(sorry i dont haz a keyboard to type the fancy "C" in "francais")