LIFERITE is a skin-safe, two-component, platinum-cured, room temperature cure silicone rubber. It is designed as an 30 Shore A, thixotropic rubber providing excellent physical properties for the use in life and body casting due to its forensic detail and long mold life. LIFERITE is our most popular mold making RTV rubber for use against skin.
We highly recommend viewing Mark Alfrey's, The Ultimate Life Casting Video which demonstrates the application of LifeRite to create a full body cast. This is the only life casting video to receive the endorsement of the academy award winning makeup artist, Dick Smith.
- Life casting and body casting
- Special Effects
TYPICAL PROPERTIES AS SUPPLIED:
Part A Base-Component Part B Catalyst
- Color White Color Purple
- Consistency Thixotropic Viscosity, cP. (mPas)
- Viscosity, cP. (mPas)
Mixing Ratio: 10 Parts A to 1 Part B Shore A Hardness: 30
Mixed Color: Lavender
Safety of Use: LifeRite is safe for external application. Do not use this product for any internal molds including inside of mouth or genitalia. We strongly advise that you apply a small sample to the inside of the wrist of your mode to determine if there will be a negative reaction such as a redness or rash. Discontinue use should you observe such a reaction.
Proper Application and Setting: LifeRite is a platinum-catalyst silicone and is therefore inhibited by latex such as rubber gloves and sulfurs such that you can find in certain clays. The model's skin must be clean and free of all cosmetics and creams (aloe-based creams are the worst offenders) or LifeRite may not cure properly. Proper application should be done with a brush, palette knife or spatula, without latex containing gloves or with the manual or pneumatic cartridge gun system. If using a latex skull cap which well inhibit cure, coat with petroleum jelly and cover thoroughly.
Controlling Working Time: To slow working time you may refrigerate the base. As a guide, placing 100 grams of base only, in a standard refrigerator freezer for 15-minutes, reduces the temperature from 72°F. to 40°F. This will increase working time from 5-minutes to 8-minutes. Leaving this same quantity in the freezer for 45-60 minutes will bring temperature to 20°F., this will increase working time to 13-minutes. However, the lower temperature also delays cure time. That is easily remedied by using a standard hair dryer to kick the silicone which has a standard demold time of 8-minutes at 72° F.
Temperature: Store and use LifeRite at room temperature (72°F / 23°C). Colder temperature will reduce setting time and warmer temperature will increase set time and shelf life. To increase set time you may place LifeRite in the refrigerator overnight.
Release: Apply a light coat of Nivea® Cream to the skin. Thoroughly cover all body hair as well. Use petroleum jelly on eyebrows and eyelashes and MoldEZ on areas of hair such as head or pubic region. Fairly to coat hair will cause it to be entrapped in the silicone causing discomfort and painful hair pilling on mold removal.
MIXING GUIDELINES FOR LIFERITE TWO COMPONENT
PLATINUM CURE MOLD MAKING SYSTEMS
Stir the base (Part A) well before use (except when machine dispensing).
Shake the catalyst container (Part B) well before use.
Weigh the desired amount of base into a clean mixing container. Tip the container and roll the base all the way around the sidewall up to two inches from the top. This will prevent the catalyst from becoming absorbed into the container.
Weigh the proper amount of catalyst into the container. Mix the base and catalyst together by stirring with a stiff, flat-ended metal spatula until a uniform color is obtained. Scrape the container walls and bottom well to insure a thorough mix.
The Next Steps will eliminate all air bubbles, but is not necessary as LifeRite will set with minimum of air bubbles since both Parts A & B have been de-aired at the plant and application is made by brush rather than pouring.
Create a print coat by mixing LifeRite with 10% silicone oil by weight.
Apply the material using a soft bristle brush, palette knife or spatula. The brushing motion and the more viscous 'print' layer should eliminate most air bubbles.
Mix the 'back-up' per directions with no silicone oil and apply. The final mold thickness should be about ¼-1/2-inch (1 cm). LifRite will stick to itself so that thinner areas can be built up with additional LifeRite is needed.
Allow the rubber to cure for 5-6 minutes or so before applying the support shell.
Allow the mold to cure an additional 60-minutes before casting after removal or pin-hole air bubbles may form in your casting.
CATALYZED PROCESSING PROPERTIES ARE AFFECTED BY TEMPERATURE AND HUMIDITY VARIATION
For best results, mix and cure the material at 72°F (23°C) and 50% relative humidity.
Higher temperature and humidity will decrease the work life and pot life of the material. The faster cure will also affect the flow properties. Refrigeration of the base prior to use in hot environments has shown to improve the handling properties of this material.
Lower temperatures and humidity will increase the work life and pot life of the material. The slower cure will increase the flow time. Cure temperatures below 68°F (20°C) are not recommended and have been found to cause a reduction in final cure hardness and properties.
It is important that the catalyst containers are tightly closed after use. Catalyst exposed to air for extended periods of time will hydrolyze (cure). An indication of hydrolysis is a film or crust formation on the surface of the catalyst. The use of hydrolyzed catalyst is not recommended and may cause incomplete cure.
USE MATERIAL IN ACCORDANCE WITH MATERIAL SAFETY DATA SHEET
This rubber system uses a platinum catalyst. Though the material is deemed as skin-safe, testing prior to use is recommended. If any irritation, flushing with water for at least fifteen minutes should relieve discomfort. If irritation persists, obtain medical attention. KEEP PRODUCT AWAY FROM CHILDREN.