CRP has launched Windform® PS, a new Polystyrene-based material, optimized for the selective Laser Sintered disposable patterns for Rapid Casting Technology.

The sintered patterns are porous in order to allow wax infiltration, making them easy to handle and finish.

Windform® PS patterns can undergo the typical rapid casting procedure, including autoclaves and flash firing steps, low-temperature furnaces and vacuum plaster casting methods.

Compared to other polystyrene materials available on the market, Windform® has:
·    Improved surface quality and details reproduction
·    Less “curling” effect on the first layers
·    Very low ash content suitable for highly reactive alloys, such as Titanium, aluminium, magnesium, steel and nickel-based alloys.

It’s particular suited for the foundry and RP market since the main applications are:
·    Complex investment casting patterns
·    Casting with highly reactive alloys, in addition to typical cast alloys.

FS Precision Tech is an investment casting foundry. They cast complex castings for CRP in both Titanium and Steel. Greg Gregory, Technical Director of FSPT said “I find that Windform PS material works well with our process and produces castings of equal or greater quality than the standard material.  FSPT would recommend using Windform PS as the rapid prototype material for any casting house”. 
CRP Technology produces Windform® PS powder and distributes the material worldwide. Windform® PS ships in 10kg stackable metal drums that are certified (CoC attached), as is standard with all Windform products.
The recommended wax is a standard 100% paraffin wax (with melting point of about 54°C) and infiltration is for about 10” @ 70°C.

CRP continues to improve the Rapid Casting process because they know what their customers need.
Their slogan is, “At 300kmh, quality isn't optional, it's your life.” Their belief is that failure is far more expensive than quality.