Quick Setting, High Strength Die Stone

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ISO Type 4

LeanRock is formulated specifically for laboratories who want to pour small batches (about 6) and have working models ready in 15 minutes.

Small batch processing is based on lean principals to improve work flow and reduce wait time because models can be trimmed and pinned after only 15 minutes, decreasing downtime waiting for stone to set. This enables smaller batches to be sent down the line for trimming, eliminating the “bottleneck” associated with large batches hitting all at once, giving you more controlled release of product.

  • Saves time – Models can be separated and trimmed after only 15 minutes, producing better process flow and less downtime.
  • Scannable – Models may be used with Cad Cam systems eliminating the need for a specialty scan stone or spray.
  • Strength – Lean Rock  is hard with superior abrasion resistance.
  • Clear Margins – Rich Ivory color provides clean, clear margins.

The decreased processing time also speeds up remakes and those emergency repairs needed in a hurry.

Physical Properties

Water/Powder Ratio
20 mL/100 g
Working Time
4 - 5 minutes
Setting Time
5 - 7 minutes
Setting Expansion
Compressive Strength
3,500 psi (15 minutes) 7,200 psi (1 Hour)
Compressive Strength, Dry (48 hrs.)
12,300 psi (85 MPa)
Item No. Description
330029 LeanRock Blue 33#/15KG
330030 LeanRock Ivory 33#/15KG
Trial Pack
31310 1.5kg of LeanRock Ivory Buy