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Product Description
Physical Properties
Technical Resources
Product Description

FastFire 15 is a fine grain phosphate investment which requires only a 15 minute benchset before placing molds into a hot oven for rapid burnout. It produces accurate, smooth castings using either the ringless or metal ring technique. Optimum fit is achieved for all crown and bridge alloys through dilution of the freeze stable FastFire Liquid.


  • Produces castings in less than one hour
  • FastFire Liquid allows year round problem-free shipping and controlled expansion
  • Reliable performance using many casting techniques and alloys
  • Exceptionally smooth, accurate castings

*Suggested concentration of FastFire Liquid is 100% (1 part liquid to 1 part water).

Physical Properties

Liquid/Powder Ratio
27 mL/100 g powder

Working Time
7-9 minutes

Setting Expansion

Thermal Expansion

Compressive Strength, Wet
500 psi (3.4 MPa)

Recommended Liquid
FastFire Liquid

*Measured at 100% Liquid Concentration

FastFire 15 25 – 60g Packages
Item No. 38089
FastFire 15 150 – 60g Packages
Item No. 38134
FastFire 15 25 – 90g Packages
Item No. 38097
FastFire 15 100 – 90g Packages
Item No. 38142
FastFire 15 33#/15KG
Item No. 330220
FastFire Liquid (freeze stable)
FastFire Liquid 340mL Bottle
Item No. 38166
FastFire Liquid 1 Liter Bottle
Item No. 38161
FastFire Liquid 6 Pack 1 Liter Bottles
Item No. 38164

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