Smooth On Universal Mold Release

$28.00 + Gst ($30.80 AUD)

Universal® Mold Release Agent is formulated especially for mold making and casting, and works well with most liquid rubber and liquid plastic products. It will release mold rubbers (such as polyurethanes and polysulfides) from properly prepared models. Sealing porous models (wood, plaster, concrete) or certain modeling clays (containing water or sulfur) with Smooth-On SuperSeal® or other sealer may be necessary.

Out of stock

Add to Wishlist



  • Shake well before using.
  • Hold can 12 in./30cm. from surface to be sprayed.
  • Apply a continuous light mist coating to model or mold surface and surrounding forms.
  • Using a soft brush, brush the release agent over entire surface of model or mold in order to break the surface tension and minimize air entrapment.
  • Apply another light mist coating of release agent and let stand for 5 minutes.
  • You are now ready to apply mold rubber or cast into a cured rubber mold.

Liquid Application:

  • This product has a limited shelf life and should be used as soon as possible.
  • Can be put into non-aerosol plant sprayer, deck sprayer, or applied with soft brush.
  • Apply thorough thin coating over entire surface of model or mold.
  • Allow surface solvents to evaporate for 5 minutes.
  • Compressed air or hair dryer may be used to blow off any excess that has pooled.
  • Repeat application and allow to dry.
  • You are now ready to apply mold rubber or cast into a cured rubber mold.

Because no two applications are quite the same, a small test application to determine suitability is recommended if performance of this material is in question.

Additional information

Weight 0.7 kg