2 Piece Plaster Mold

[Jigfishn10]

Hey guys, was hoping I can get some help.

 

I want to replicate a soft plastic bait and will be making a mold out of plaster and have the following 2 questions: 

• When you embed you soft plastic bait into the fresh mixed plaster do you lubricate the bait prior to embedding? If yes, what would you use, vegetable oil?
• After the first part of the mold is cured and detailed, would you lubricate the mold and bait? Again, vegetable oil?

 

Sorry, it's been about 8 years since I made a lipless crankbait mold, so I forgot a few steps. Any help would be much appreciated.

 

Thank you.

[BassNJake]

I use vaseline to lube my baits before putting them into the soft plaster. ( I use Durhams water putty)

I do not have to relube them before pouring the top half.

 

When I'm done the baits pull out easily and I can still use them.

I also use a mix of rubbing alcohol and Devcon 2 ton Epoxy to coat the cavities.

I'll usually do 3 coats for the cavities and one coat on the entire mold.

 

Good luck!!

[Jigfishn10]

1 minute ago, BassNJake said:

I use vaseline to lube my baits before putting them into the soft plaster. ( I use Durhams water putty)

I do not have to relube then before pouring the top half.

 

When I'm done the baits pull out easily and I can still use them.

I also use a mix of rubbing alcohol and Devcon 2 ton Epoxy to coat the cavities.

I'll usually do 3 coats for the cavities and one coat on the entire mold.

 

Good luck!!

That's a great tip!

 

I used a different material when I did my lipless crankbait mold and didn't have to do this step. Thanks a million, I never would have thought of that. 

[BassNJake]

If I dont coat the cavity, the lure comes out with a dull finish. 

Coating the cavity leaves the end product with a shine.

 

I coat the whole mold for klutz protection hahahaha

[Jigfishn10]

15 minutes ago, BassNJake said:

If I dont coat the cavity, the lure comes out with a dull finish. 

Coating the cavity leaves the end product with a shine.

 

I coat the whole mold for klutz protection hahahaha

You must be my brother from another mother....another good tip....

[Jigfishn10]

Finally got some home projects done this weekend so I tried my hand at this.

 

Epic fail...

Some Lessons learned:

* My first pour, the pic on the right was too thin, especially where it broke at the lure imprint.

* I also think my plaster need to be thinner. I'm also changing plaster products. I have Uni-Kal Plaster I can try

* More lubrication between halves.

 

Will try it again next weekend.