Resin Casting with Ransom and Randolph's PlastiCast

If you cast a resin part, its vital to use the correct investment type; Ransom & Randolph Plasticast is the ideal choice because it can handle thermal expansion properties that regular wax investments can't.

Plasticast was developed specifically for burnout of plastic materials. Due to resins nature of expanding under heat, the investment is made specifically to counteract those forces with being equally high expanding and extra strength.

Wax will burnout clean 100% of the time without thermally expanding, so the investment used doesn't need fortification, but as is the case with most polymer/acrylate parts, investment bursting may lead to lost detail, bumpy surfaces, and even porosity. There is also a risk of increased ash content when casting resin with non-resin-specific investment types.

The ring above was cast with standard investment using a resin model. You can see all of the imperfections onto the model due to the model expanding and breaking the investment during the casting process. Avoiding these problems is as easy as changing the investment used. 

Call us today and learn more about the advantages and special pricing of R&R Plasticast investment.