Jump to content
AK47

Homemade plastisol

Recommended Posts

Hi all! I have tried to make my own homemade plastisol. I mixed DINP plasticizer (approx. 80%) with emulsion PVC paste resin (approx. 20%), also add metallic thermostabilizer and epoxy soybean oil as an additional thermostabilizer.
Everything is Ok, except that my lures has sticky/ tacky feel.
Could somebody advice me, what else I need to add to avoid this sticky/tacky feel?


Thank you in advance!

 

Link to comment
Share on other sites

20 minutes ago, Baitjunkys said:

Soybean oil replaces dinp as a plasticizer, you probably have way to much plasticizer.

I added just a few % (approx. 2% or 3%) of epoxy soybean oil. As I found on chemical forums, ESO can partially replaces dinp as a plasticizer, but mainly uses in small amount as an additional thermostabilizer.

Link to comment
Share on other sites

12 minutes ago, Baitjunkys said:

if you are using paste, back off on the plasticizer. To much makes it sticky.  

But I use PVC paste resin, actually it's not a paste, it's a grade of PVC resin, which can be used to make a paste (should be mixed with plasticizer to get a paste or plastisol). 
Quote from the website of this resin manufacturer:

"Emulsion paste-forming polyvinyl chloride with non-alkaline pre-stabilization. White solid material, odorless. It is suitable for production of pastes of medium viscosity, little pseudoplastics pasts."

Link to comment
Share on other sites

29 minutes ago, Anglinarcher said:

Baitjunky's is a maker of the stuff.  I would tend to take his word for it.  :yes:

I have no doubt in his qualification.:)  And I'm grateful to him for his attention to my question. Also I would like to clarify - I live on another continent, so I'm not planning to be a competitor for your plastisol manufacturers. At least, this year :D:D

Link to comment
Share on other sites

31 minutes ago, Baitjunkys said:

I dont make it, and my post are suggested. Not stone...  I am curious what shore hardness you git tho with this batch? 

I haven't a durometer, but approximately - similar with brands lures, for example - Lunker city, Zoom etc.

Link to comment
Share on other sites

18 minutes ago, Baitjunkys said:

Cut back on your plastizizer or add more resin. You are likely to soft and the resin is not absorbing all the plasticizer, hence sticky.

Yes, I had the same thoughts. But how I can get needed softness in this case? I have tried to increase the weight of resin to 30% - the stickiness of the lures decreased (but not completely disappeared!), but the softness was unsatisfactory.

Link to comment
Share on other sites

Guest DiyEngineer
On 12/12/2017 at 1:53 PM, AK47 said:

Yes, I had the same thoughts. But how I can get needed softness in this case? I have tried to increase the weight of resin to 30% - the stickiness of the lures decreased (but not completely disappeared!), but the softness was unsatisfactory.

I believe you need a dispersing agent in the formula,  I believe it is possible that the plasticizer is not spreading throughout the formula hence some, but not total stickiness. But it can also be the chemicals in the resin that breaks apart when not mixed correctly that is causing over stickiness, so it could also be how the resin was made.

Edited by DiyEngineer
Link to comment
Share on other sites

Plastisol is sticky by nature, It is covered up with mineral seal oil or other like materials that exude after it is heated etc. Best thing, run with what you got, wipe them in mineral oil when you take them out of the mold, Unless of course there so sticky there sticking to the mold itself.

 

  • Like 1
Link to comment
Share on other sites

Guest DiyEngineer

Baitjunkys ,  I am quite aware of that but when certain chemicals in the pvc resin can add lot or a little stickiness which is variable on the company that produces it or how it was made..  Also some formulas of plastisol contain tiny droplets of lubrication (oils or glazes) that are released when it cools removing the stickiness temporarily or permanently. I know some on plastisols, but far more on organics or bioplastics.

Edited by DiyEngineer
typo
Link to comment
Share on other sites

I am also in formulating pvc plastisol for marlin skirt lures. Have to make it much harder than the soft bait Plastics. Two ways I will use is dip molding and injection molding like in soft baits. Gellation takes place at 170c and liquidise at about 280c .

What will the problem be for this high heat requirement  

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...


×
×
  • Create New...
Top