Smooth-On EpoxAcast 650 Mineral Filled
Smooth-On EpoxAcast 650 are mineral filled general purpose casting epoxies that are low cost and versatile. They feature a low mixed viscosity for minimal bubble entrapment.
EpoxAcast 650 is used for making hard dies for metal stamping as well as patterns and fixtures. They are also used for electrical encapsulation to extend the life cycles and enhance the performance of potted electronic devices. The high compressive strength makes it ideal for making stamping dies for production pressing of metal ornaments.
FEATURES
- Color is Off-White
- A gram scale is needed
- Release agent is required to remove Epoxy from most surfaces. See Mann 200 or Mann 205
Hardeners are Sold Separately
Note: EpoxAcast 650 is used with a Hardener. Compatible with with 101; 102; 103 or HT hardeners.
Hardener 101 Fast
Mix Ratio 100A:12B
Pot Life: 20 minutes
Cure Time: 1 hours
Hardener 102 Medium
Mix Ratio 100A:13B
Pot Life: 90 minutes
Cure Time: 4 hours
Hardener 103 Slow
Mix Ratio 100A:14B
Pot Life: 3.5 hours
Cure Time: 24 hours
Hardener HT High Temp
Mix Ratio 100A:10B
Pot Life: 3 hours
Cure Time: 24 hours
Price range: $32.00 through $100.00
Product Details
Lowering Viscosity – Epic™ Epoxy Thinner is a clear, water-like liquid that will lower the viscosity of some Smooth-On casting and laminating epoxies. Epic™ is not a solvent and can be added in different proportions to improve flow-ability to make it easier to mix and pour or laminate. Epic™ will also aid in reducing bubble entrapment.
Increasing Flexibility – Flexer™ Epoxy Flexibilizer is a clear, low viscosity liquid additive that will lower the durometer (Shore hardness) of some Smooth-On casting and laminating epoxies. When added to the epoxy system in the proper proportion, the cured epoxy will be softer and, in some cases, can be made semi-rigid. See the Flexer™ Technical Bulletin for more information.
Adding Fillers – A variety of dry fillers can be added. Pre-mix dry filler with Part A before adding Part B. Pouring – If casting EpoxAcast™ 650 into a rubber mold, pour mixture in a single spot at the lowest point of the mold. Let the mixture seek its level. A uniform flow will help minimize entrapped air. If making vacuum forming molds, it is best to use piano wire (15/1000 inch gauge) to make vacuum holes.
Heat Curing – For best results, EpoxAcast™ 650 should be heat cured in an oven. Cure at 175°F / 80°C for two hours, followed by three hours at 300°F / 150°C. Allow material to cool to room temperature.
Painting – Cured EpoxAcast™ 650 can be painted and / or primed and then painted with acrylic enamel paints. Let paint fully dry before putting part into service.
Removing Epoxy – Uncured/ Non-curing epoxy: Scrape as much material as possible from the surface using a scraper. Clean the residue with E-POX-EE KLEENER™ available from Smooth-On, lacquer thinner, acetone or alcohol. Follow safety warnings pertaining to solvents and provide adequate ventilation.
