ENDU BN 4479 is a product of Acheson France S.A. It is a collodal dispersion of boron nitride in solvants. It is applied by spraying and it plays the role of an anti-sticking agent. In addition, it offers the advantage of being a barrier to metallurgical diffusions.

Physical properties:

Volumetric weight @ 20 C:
Viscosity @ 20 C – 200 rpm:
Contained Solvant:

White slightly viscous liquid.
1100 kg/m
350 mPas
1-methoxy-2-propyl acetate

Application: ENDU BN 4479 is applied wherever one wants to obtain refractory and/or anti-sticking surfaces. It has been specially designed to coat the graphite dies of the common hot presses that are used by the diamond tool industry. The boron nitride film acts as a demoulding agent that resists both to temperatures as high as 1000 C and to pressures as high as 350 kg/cm2.


ENDU BN 4479 is a unique product that offers the following advantages:
  • It resists to thermal shocks (from 500 C up to 1000 C).
  • It increases the corrosion resistance of the graphite dies.
  • It reduces drastically the stickiness and facilitates the demoulding operations of pieces.
  • It shows excellent lubrication properties at high temperatures during the hot pressing.
  • It does not react with the metal powders that are hot pressed.

Lubricants, release agents, chemicals : table of contents  Aqua BN  Pulve BND 60  Fine paraffine powder