Trinity Performance Minerals
Trinity Performance Minerals
Trinity Performance Minerals


ALTIFIL™ products consist of a natural combination of pyrophyllite and quartz. They have permanent expansion, excellent reheat stability, low hot load deformation, low reversible thermal expansion, low thermal conductivity, low shrinkage, and high resistance to molten ingress. Because of its stable nature and physical properties, pyrophyllite is employed in mold release and parting agents in foundry and structural clay.

Applications include:


  • Foundry coating for mold release
  • Foundry filters
  • Foundry washes


Pyrophyllite is a key component in commercial production of E-Glass fibers, which enables the elimination of sand in the batch and improves batch-to-melt conversion efficiency and lowers conversion energy.


Trinity offers a high brightness, high aspect ratio product that replaces talc as a reinforcing additive for strength.


Pyrophyllite’s presence in agriculture includes its use as an anti-caking agent and moisture barrier in feed pre-mixes, enhancing the flowability and effectiveness of agricultural products.


In ceramics, pyrophyllite is employed to manufacture high-temperature porcelain and whiteware, ensuring consistent and robust finished products in kiln firing processes.


Pyrophyllite’s versatility extends to the paint and coatings industry, where it acts as an extender and corrosion-resistant pigment, enhancing the performance of coatings and paints.