Kromotypo 4 is a type-4, color-changing, extra-hard stone with extra-fine granulometry specific for the preparation of total and partial non-removable master models, stumps preparation, metal framework, implants and antagonist models.

Color changing process:

• After mixing water and powder, the compound color turns to yellow.
• When the color turns to pink it is time to cast the model.
• Finally, when the compound color turns back to yellow the model can be removed from the impression.

The extra-fine granulometry of Kromotypo 4 helps guarantee a fine and homogeneous stone with high resistance to compression, abrasion, and chipping.

Kromotypo 4 is compatible with all impression material and all products for the isolation of plaster against plaster. The working time can be adjusted with Time Out.

Features

• Final color: pastel yellow
• Water/powder ratio: 22 ml/100 g
• Imbibition time: 20 seconds
• Mixing time (manual): 60 seconds
• Mixing time (mechanical): 30 seconds
• Pouring time: 3 minutes
• Setting time: 7 minutes
• Time for separation after setting: 25-30 minutes
• Expansion setting (after 2 hours): 0.08%
• Compressive strength (after 24 hours): 81MPa, 11.740 psi, 828 Kg/cm2
• Rockwell hardness (after 24 hours): 85 HRL

The time scores listed above may vary according to the impression material used.

Packaging

• KTP412 – Carton box containing 10 bags, 12.5 kg each
• KTP098 – 6 Kg. plastic bucket
• KTP096 – 25 Kg. plastic bucket