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| EpoxAcast® 655 |
EpoxAcast® 655
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EpoxAcast® 655 (formerly Metalset® A-30) is a versatile aluminum filled castable epoxy resin that is very hard and strong. It is dimensionally stable, even when mass cast up to 512 in3/ 8,390 cm3. Different hardener speed options are available depending on your project requirements. Maximum heat resistance is achieved using HT HIGH TEMP hardener (up to 225°F/108°C).
Cured EpoxAcast® 655 epoxy has high physical properties and is used for a variety of applications including making hard tooling, vacuum forming dies/molds, injection molds, foundry patterns, jigs and fixtures and metal forming dies. Depending on project requirements, Part A Base can be mixed with 101 FAST, 102 MEDIUM, 103 SLOW or HT HIGH TEMP hardeners. EpoxAcast 655 Base (Part A) & Hardener (Part B) sold separately. Choose from 101 FAST, 102 MEDIUM, 103 SLOW or HT Hardener
| EpoxAmite Hardener Reference - When Using EpoxAcast® 655 Part A |
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| | Mix Ratio | Pot Life | Cure Time | | 101 FAST Hardener | 100A:10B by weight | 30 Minutes | 90 Minutes | | 102 MEDIUM Hardener | 100A:11B by weight | 75 Minutes | 135 Minutes | | 103 SLOW Hardener | 100A:12B by weight | 3.0 Hours | 195 Minutes | | HT HIGH TEMPERATURE Hardener | 100A:8B by weight | 4.0 Hours | 24 Hours followed by: Heat cure for 2 hrs at 175°F/80°C followed by 3 hrs at 300°F/150°C |
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| EpoxAcast® 670 |
EpoxAcast® 670
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EpoxAcast® 670 HT (formerly 20-136) is an epoxy casting compound which offers high heat resistance up to 350° F/177° C if post cure schedule is used. EpoxAcast® 670 HT features a relatively low viscosity that ensures minimal bubble entrapment. EpoxAcast® 670 HT also offers an extra long working time of 3 hours.
Castings cure with negligible shrinkage and are very hard, very strong and heat resistant. EpoxAcast® 670 HT is ideal for making vacuum form molds, foundry patterns, forming dies & fixtures, hard rollers, industrial parts and high impact tools. EpoxAcast® 670 HT is also suitable for encapsulation applications or for use as a high temperature epoxy adhesive for bonding a variety of surfaces. | EpoxAcast® 670 |
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| | Mix Ratio | Pot Life | Cure Time | | HT HIGH TEMPERATURE Hardener | 100A:16B by weight | 3.0 Hours | 24 Hours followed by: Heat cure for 2 hrs at 175°F/80°C followed by 3 hrs at 300°F/150°C |
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| EpoxAcast® 690 |
EpoxAcast® 690
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EpoxAcast® 690 is a clear casting epoxy resin that is ideal for making clear jewelry/beads or replacement lenses for kit cars and other applications requiring a rigid, clear finished product. EpoxAcast® 690 can be colored with SO-Strong® color tints.
EpoxAcast® 690 is also suitable for making clear molds and prototype parts. Castings cure with negligible shrinkage and are very hard and strong. EpoxAcast® 690 is also suitable for encapsulation applications for electronic assemblies where component identification is necessary. Recommended casting thickness maximum; 2 in. / 5 cm. | EpoxAcast® 690 |
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| | Mix Ratio | Pot Life | Cure Time | EpoxAcast 690 Clear Hardener
| 100A:30B by weight | 5.0 Hours | 24 Hours |
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| Free Form® Air Epoxy Putty |
Free Form® Air Epoxy Putty
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Free Form® Air is an extremely lightweight epoxy putty suitable for an infinite variety of industrial and art-related applications. This is a low-odor, low shrinkage putty that is unique, inexpensive and easy to use. Free Form® Air is mixed by hand with a 1A:1B by volume mix ratio. It offers a long working time and cures overnight at room temperature to a hard, rigid epoxy that is very strong with modeling board-like properties. Cured Free Form® Air is so lightweight, it will float in water. It can be sanded, shaped, drilled, tapped and CNC machined/routered. It will readily accept any paint. Free Form can also be color pigmented with SO-Strong® or Ignite® colorants.
After mixing, Free Form® Air can be pressed into a mold to make a lightweight, detailed casting. It will hold vertical surfaces and can be applied to almost any surface including polystyrene foam for rough sculpting. Free Form® putty can also be used to make rigid support shells or mother molds.
Epoxy Laminating; Laminate Free Form® Air putty in between layers of EpoxAmite® Laminating Epoxy and fiberglass cloth, carbon or other fiber for making lightweight composite parts. Eliminates the need to make multiple layers of laminating with liquid epoxy; saves time and labor.
Epoxy Tooling Applications – use as a filleting material. Also good for jig and fixture construction.
Used as a lightweight adhesive, Free Form® Air will bond to itself and a variety of surfaces including wood, stone and EpoxAcoat® Red surface coat epoxy. Free Form® Air will even cure under water.
Pot Life/Working Time; this material is mass sensitive. The more material you mix at one time, the less time you have to work with it. Working tip; If mixing a large quantity, flatten putty with a rolling pin to reduce mass concentration and extend pot life.
- Thickness; 1.5 inch (3.81 cm) – pot life is 30 minutes, handling time is 2.5 hours, full cure in 24 hours.
- Thickness; 3/8” (0.95 cm) – pot life is 60 minutes, handling time is 4 hours, full cure in 24 hours.
- Thickness; 1/8” (0.32 cm) - pot life is 120 minutes; handling time is 8 hours, full cure in 24 hours.
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