Prestige Optima is a significant breakthrough by Certus to develop a new generation gypsum bonded investment that consistently provides superior, smoother surface for casting today's resin patterns and a variety of other materials including:
- Resin Patterns-Most All Competitive Brands
- Carving Waxes
- Standard Injection Waxes
- Wax Based Polymers
- Hybrid Wax/Plastic Patterns
Prestige by Certus OPTIMA investment features the highest mold expansion that is required for resin patterns that can be so difficult to cast with. It is an easy to mix formula that mixes to a creamy, smooth pourable slurry. It has a extra low rise of slurry under vacuum and outstanding temperature resistance for higher burnout temps. You will find that it greatly reduces porosity in the most difficult metals saving tons of time in finishing. Besides capturing the most delicate details, Prestige Optima will also work with high temperature metals like palladium white gold and other alloys. The extra high expansion properties of Optima allow for the investment to expand ahead of resin patterns and other high expanding pattern materials, thus avoiding flashing, or cracking of the mold.
Sold in a 49 Lb (22.2 kg) sack (bag). Made in Turkey.
This product contains a blend of crystalline silica. Prolonged inhalation of this product may be harmful. IARC reports that there is sufficient evidence in humans for the carcinogenicity of inhaled crystalline silica in forms of quartz or cristobalite from occupational sources. Symptoms may not appear until permanent lung damage has occurred. Persons who use this product should have periodic physical examinations for silica exposure. work areas should be periodically tested to determine the amount of airborne crystalline silica compared to OSHA and MSHA accepted standards. ALWAYS wear NIOSH-approved breathing protection for crystalline silica dust when working with product or when possible exposure to product dust exists. Users must comply with all applicable health and safety regulations relating to the safe handling of crystalline silica. See MSDS for information. California Prop 65 Warning: This product contains crystalline silica, a chemical know to the State of California to cause cancer.
I obtained the smoothest, porosity free casting from resin using this investment EVER! The customer service was exceptional! My first cast was not so good, the response from Certus was almost immediate and completely corrected the issue.
Yesterday we picked up the Certa investment and this morning we did a test cast. One flask was post-cured for 10 hours (which they say isn't necessary, but it has helped). The other flask was some settings I just printed up for the test - washed and dried only. Both of them cast with excellent results, like wax in Satincast. Very encouraging, best casting of resin ever, but only one test so far....