350 grams of React-Shun, dedicated to Direct RP Casting:
This proprietary material, developed and supplied by us, represents a significant advancement in casting technology.
For Direct Casting:
React-Shun introduces a transformative element to the chemistry of your investment during burnout, establishing an inert contact layer within the mold cavity. Its application significantly diminishes the occurrence of rough casting surfaces resulting from the reactive nature of prototyping resins and gypsum-bonded investment during burnout. Achieving exceptional results necessitates only 3 to 5 immersions of your resin parts into the React-Shun solution. It is recommended to expel excess material with a gentle stream of compressed air, particularly in intricate detail areas. Immediate closure of the bottle after use is advised due to the rapid drying nature of this material.
React-Shun and Direct Production Molds:
Beyond its application in direct casting, React-Shun finds utility in crafting direct vulcanized production molds from resin models. This material facilitates the creation of vulcanized production rubber molds using low-temperature silicone rubber, such as Castaldo VLT, Zero D Products LSLT-160, and Nicem low-temp rubbers. Whether growing your feed sprue alongside your RP part or utilizing heat-tolerant Super Glue for attaching a metal or RP feed sprue, React-Shun ensures optimal results. A brief shake, followed by one or two dips at most, forms an all-encompassing, even coating preventing rubber adhesion to the RP part. This surpasses the efficacy of sprays and alternative methods.
Best Practices for Mold Making:
Precision in packing the rubber around your RP part is paramount to a successful mold, ensuring an even and firm closure to avoid irregularities. Equally important is the uniform distribution of pressure on the vulcanizer platen, applied gradually over 7 to 10 minutes. Excessive pressure too quickly may distort the RP model, leading to compromised waxes. Asiga’s PlasPINK, PlasGRAY, FusionRed, and FusionGray stand as exemplary materials for direct molding, proudly manufactured in America.