First casting - milky

[bcoyne]

Suggestions what went wrong? I cast two blanks and the left over alumilite in alone to see what happened. Blanks came out milky and other was clear. Tubes were painted, cover with mod podge, logo was glued on with mod podge, dried 48 hr and casted. New alumilite also. 40 PSI 2 hrs. Also had made a 2 shelf holder for inside pot. blanks were on the bottom.

suggestions?

thanks
Bob

 

[seamus7227]

your modge podge holds moisture unless fully cured over 2-3 weeks, and moisture is Alumilite's enemy!

 

[Super Dave]

You said the logo was glued on ?? I have used sticker paper, cover the entire tube, then seal with thin CA. Let dry overnight before casting. Worked for me.

Dave

 

[Jim Burr]

your modge podge holds moisture unless fully cured over 2-3 weeks, and moisture is Alumilite's enemy!

Wouldn't it foam up Seamus...or is cloudy a possible side effect also?

 

[Brooks803]

I think it foams when hit directly with water (h2o in air line) but goes milky when the moisture comes from the inside out.

At least that's been my experience.

 

[Kenny Durrant]

One other cause could be the part a and part b ratio. If not mixed by weight that will also cause it to turn milky.

 

[PTownSubbie]

One other cause could be the part a and part b ratio. If not mixed by weight that will also cause it to turn milky.

But I think they said the leftover cured clear. I am with Seamus and Jonathon on this one. I think this milky probably came from the Modge Podge.

Milky tint can come from inadequate mixing or improper ratios. But this screams moisture......

 

[resinman]

The Most likely cause would be not mixing for the full 2 minutes

 

[MesquiteMan]

The cause is moisture from the hodgepoge. Been there, done that!

 

[Kenny Durrant]

My response wasn't to contradict others but to give you other options or ideas to consider. Also on the Mod Podge I have yet to get a successful cast using it. I think it is a great product because it makes the colors pop and I like the way it handles when applying the pictures. I know others use it with no problems. I pretty much just use plain old Elmers now.