Will alumilite adhere to alumilite?

[KMCloonan]

I have a customer who has requested a mechanical pencil that is mostly one color, but he would like a "splash" of a different color at one end. See his sketch below.

I am thinking of pouring the main color into a blank cavity (when the temperature has reached 105F), tilted so the resin flows to one end, and as it sets up, pour the second color at the other end and then level the mold so the two colors flow together. My questions are:

Will the two colors bond to each other, or will there be a "witness" line?

Does anyone have other suggestions for how to obtain the look in the picture?

Thanks for any suggestions!

 

[JohnU]

As long as the two colors are still "pour-able" they should bond just fine. The problem comes in when one side is hard and shiny (fully cured) and the second color is poured on to it. Then it becomes a breakable bond. Smaller cured pieces in resin are more doable. In your case, I would let the resin hit more around 120°-130° when pouring the second color. It will be thicker and less able to drop down deep in the first color.

 

[KMCloonan]

As long as the two colors are still "pour-able" they should bond just fine. The problem comes in when one side is hard and shiny (fully cured) and the second color is poured on to it. Then it becomes a breakable bond. Smaller cured pieces in resin are more doable. In your case, I would let the resin hit more around 120°-130° when pouring the second color. It will be thicker and less able to drop down deep in the first color.

Thanks John!

 

[egnald]

This looks like a perfect fit for one of John's vertical casting tubes. I suppose an alternative might be a piece of 3/4 inch PVC with the bottom sealed up with some tape. Of course how the colors separate and intermingle at the interface will depend on the viscosity at the time you pour.

Anxiously waiting to see your results. - Dave