Oomoo 25 trial size

Cure Inhibition - Silicone rubber may be inhibited by certain contaminants in or on the pattern to be molded, resulting in tackiness at the pattern interface or a total lack of cure throughout the mold.

If compatibility between the rubber and the surface is a concern, a small-scale test is recommended. Apply a small amount of rubber onto a non-critical area of the pattern. Inhibition has occurred if the rubber is gummy or uncured after the recommended cure time has passed. Materials found to cause cure inhibition include sulfur-based modeling clays and latex rubber.

To prevent inhibition apply a sealing agent. Applying A Release Agent - Although not usually necessary, a release agent will make demolding easier when pouring into or over most surfaces.

Because no two applications are quite the same, a small test application to determine suitability for your project is recommended if performance of this material is in question. After dispensing equal amounts of Parts A and B into mixing container, mix thoroughly for 3 minutes making sure that you scrape the sides and bottom of the mixing container several times.

Mixture should have a uniform color with no color streaks. If you observe color streaks, continue mixing until they are eliminated. Pouring — For best results, pour your mixture in a single spot at the lowest point of the containment field. Let the rubber seek its level up and over the model. A uniform flow will help minimize entrapped air.

Allow mold to cool to room temperature before using. Using The Mold — No release agent is necessary when casting wax or gypsum. This material is not compatible with sulfur-based modeling clay. Notifications A release agent may be required to remove cured silicone rubber from glass, silicone, or some other surfaces. Material Calculator Tools to help you estimate the amount of materials needed for your project.

This calculator will estimate the amount of casting material for a simple cubic part. Please note: We do our best to ensure that this material estimator is accurate. Reynolds Advanced Materials assumes no liability for loss or damage associated with use of material estimators.

If this is a critical project, we encourage you to verify estimator results using the long-hand method of correlating the volumetric yield of the material with mold cavity. You can also contact Reynolds Advanced Materials for assistance.