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A new breed of phosphate investment that’s rapid, reliable and ringless.


Full Description


Product Description
Physical Properties
Technical Resources
Product Description

A carbon-free, fine-grain phosphate bonded investment for casting crown and bridge and ceramic alloys. This versatile all-purpose investment has been specially formulated to use with a rapid burnout technique. It can be used both with a metal ring and a ringless technique without cracking. Special Liquid Concentrate – Plus provides the high expansion especially needed for non-precious alloys and can be diluted as needed for other alloys.


  • Crack resistant and tolerant to rapid temperature rise
  • Can be used both with ring or ringless technique
  • Easy breakout for faster cleanup
  • Smooth, accurate castings reduce finishing time

*Suggested concentration of Special Liquid Concentrate- Plus is 80% (4 parts liquid to 1 part water).

Physical Properties

Liquid/Powder Ratio
23 mL/100 g powder

Working Time
8-9 minutes

Setting Expansion

Thermal Expansion

Compressive Strength, Wet
700 psi (5 MPa)

Special Liquid Concentrate - Plus (keep from freezing)
Special Liquid Concentrate Plus 340mL Bottle
Item No. 38122
Special Liquid Concentrate Plus 1 Liter Bottle
Item No. 38127
Special Liquid Concentrate Plus 6 Pack 1 Liter Bottles
Item No. 38130

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