Smooth-On SuperSeal & Ease Release 205 Combo Pack

MSRP: $8.93
(You save $0.89 )
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2 oz. Combo Pack of SuperSeal?? and Ease Release?? 205 (liquid).

SUPERSEAL??was developed as an economical, fast-drying sealing agent for a variety of porous surfaces including gypsum plasters, concrete, and wood. This sealing agent will quickly and effectively seal surfaces without interfering with surface detail. The new formula offers better performance and faster evaporation. Mold rubber (polyurethane, silicone or polysulfide) can then be applied.


  • Low Cost
  • Low Viscosity ??? wets out well over any surface
  • Evaporates Quickly
  • Ultra Thin Film ??? does not interfere with reproduction of surface detail or finish
  • Gives cured rubber mold surface a smooth, satin finish
  • Removable ??? can be rinsed from model surface with warm water


Safety First ?????Do not smoke or use ignition sources when using sealing or release agents. Use only with good ventilation. Store and use at room temperature

A minimum of 2 coats of SuperSeal?? is recommended to seal most surfaces. For extremely porous surfaces (i.e. limestone or dry plaster) an additional coat of SuperSeal?? may be required. Or apply two coats of SuperSeal?? and follow with an application of Ease Release?? 200. Superseal?? can be applied using a soft brush or a non-aerosol spray bottle to lightly mist SuperSeal?? onto the model surface.

  1. Shake well before using
  2. Apply a thorough thin coating of SuperSeal?? over the entire model surface and surrounding forms including intricate detail and undercuts. Compressed air or a hair dryer may be used to blow off any excess that has pooled. Let dry for 5 minutes.
  3. Repeat above 1 - 2 more times and let final coat dry for at least 1 hour.
  4. If recommended by mold rubber manufacturer, apply a light mist coating of release agent (i.e. Ease Release?? 200). Because no two applications are quite the same, a small test application to determine suitability for your project is recommended if the??performance of this material is in question.

Important:??Discoloration of the??model surface may occur. If compatibility between SuperSeal?? and model surface or SuperSeal?? and a particular mold rubber is a concern, a small-scale test should be made on an identical surface prior to use.


EASE RELEASE 205 is a versatile liquid release agent that is used for a variety mold making and casting applications. This product will release liquid urethane rubber from cured urethane rubber and a variety of surfaces. It will also release silicone rubber from itself and a variety of surfaces.

ER 205 can also be used to release epoxy, and urethane resins as well as thermoplastics. EASE RELEASE 205 is effective on a variety of substrates including steel, aluminum, chrome, epoxy, urethane rubber and plastics, sealed plasters, sealed concrete and wax. ??


  • Easy to apply
  • Fast drying
  • Effective over a broad temperature range from 70??F to 500??F
  • Excellent release
  • Will not interfere with detail reproduction
  • Matte finish


Safety First ?????Do not smoke or use ignition sources when using sealing or release agents. Use only with good ventilation. Store and use at room temperature

  1. Shake well before using
  2. Hold spritzer pump 6 in./ 15 cm. from the??surface to be sprayed.
  3. Apply a light mist coating to all surfaces that will contact the rubber or casting material including model or mold surface and surrounding forms.??DO NOT OVER APPLY.
  4. Using a soft brush, brush the release agent over all surfaces. Allow to dry for 10 minutes.

Important -??this product has a limited shelf life and should be used as soon as possible.