Sprues with "pear-shaped reservoirs" – optimum for preventing contraction cavities in dental castings. These sprues were specifically developed for attaching to large volume patterns such as solid full gold crowns, pontics, one-piece bars and implant superstructures.

Perawax sprues are made of special burnout wax, are torsion-resistant and available in three sizes.

250 small, 0,10 g REF 103203
250 medium, 0,17 g REF 103204
200 large, 0,21 g REF 103205
Our safety data sheets and application instructions in PDF format:

  Material safety data sheet Perawax

Processing time in minutes
Setting time in minutes
Setting expansion %
Compressive strength, after 1 hour(MPa)
Compressive strength, dry (MPa)
103203 Perawax, small (0,10 g)
103204 Perawax, medium (0,17 g)
103205 Perawax, large (0,21 g)
103299 Perawax Set (small, medium, large) a 50 pcs