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Castable Epoxy Resins

Free Form® EARTH Sculptable Epoxy Putty
 Free Form® EARTH Sculptable Epoxy Putty
Free Form® EARTH Sculptable Epoxy Putty
Technical Bulletin
MSDS
Free Form® EARTH is a sculptable, clay-like putty suitable for sculpting fine detail using tools or shaping by hand.
This is a low-odor, low shrink epoxy that is inexpensive, easy to use for a variety of art related and industrial applications.

Maximum Usability - Just Add Water; you can change the consistency and workability of Free Form® EARTH by adding water when mixing A+B components.  Putty surface can be smoothed with water while sculpting.

Parts A & B are mixed in equal amounts by hand.  Working time is a long 2.5 hours and Free Form® EARTH cures overnight to a hard, rigid epoxy that is very strong and waterproof. Cured putty is easily painted with acrylic paints.

Free Form® EARTH does not contain crystalline silica (which is a known carcinogen)
. It can be safely sanded, shaped, and painted.
Used as a repair adhesive, Free Form® EARTH will bond to itself and a variety of surfaces including wood, metal, glass, stone, and concrete.  Free Form® EARTH will even cure under water.

Tarbender® High Gloss Coating and Encapsulant
 Tarbender® High Gloss Coating and Encapsulant
Tarbender® High Gloss Coating and Encapsulant
Technical Bulletin
MSDS
Tarbender® is a UV resistant clear liquid epoxy that can be poured over a variety of surfaces to provide a strong, high gloss coating. Parts A and B mix together and flow easily. Tarbender® epoxy cures at room temperature and offers high impact resistance.

Tarbender® is an excellent wood bar top coating and can also be poured over plaster, concrete, foam, fabrics, etc. You can use Tarbender® to encapsulate 3-D objects or coat flat objects, paper and more.
Tarbender® Coverage Rates
Amount Poured at 1/16”(1.6mm)Poured at 1/8”(3.2mm)Poured at 1/4”(6.4mm)
1 oz./28.3 g.25.4 in² / 164cm²12.7 in² / 82 cm²6.4 in² / 41 cm²
Trial Unit
(2.83 lbs./1.28 kg)
8 ft² / 0.74 m² 4 ft² / 0.37 m² 2 ft² / 0.19 m²
Gallon Unit
(11.2 lbs./5.08 kg)
32 ft² / 2.97 m² 16 ft² / 1.48 m²8 ft² / 0.74 m²
5 Gallon Unit
(56.5 lbs./25.62 kg)
160 ft² / 15 m²80 ft2 / 7.5 m²40 ft² / 3.75 m²

EpoxAcast® 650
 EpoxAcast® 650
EpoxAcast® 650
Technical Bulletin
MSDS
EpoxAcast® 650 is a mineral filled general purpose casting epoxy resin that is low cost and versatile. It features a low mixed viscosity for minimal bubble entrapment. Choose Fast, Medium or Slow catalyst to fit your project. You can also use HT Hardener to give your castings higher heat resistance.

EpoxAcast® 650
is used for making hard dies for metal stamping as well as patterns and fixtures. It is also used for electrical encapsulation to extend the life cycles and enhance the performance of potted electronic devices. The high compressive strength of EpoxAcast® 650 makes it ideal for making stamping dies for production pressing of metal ornaments.
EpoxAcast 650 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® 650 Part A
  Mix Ratio Pot Life Cure Time
101 FAST Hardener 100A:12B by weight 20 Minutes 1 Hour
102 MEDIUM Hardener 100A:13B by weight 90 Minutes 4 Hours
103 SLOW Hardener 100A:14B by weight 3.5 Hours 24 Hours
HT HIGH TEMPERATURE Hardener 100A:10B 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

EpoxAcast® 655
 EpoxAcast® 655
EpoxAcast® 655
Technical Bulletin
MSDS
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
  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

EpoxAcast® 670
 EpoxAcast® 670
EpoxAcast® 670
Technical Bulletin
MSDS
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
  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

EpoxAcast® 690
 EpoxAcast® 690
EpoxAcast® 690
Technical Bulletin
MSDS
EpoxAcast® 690 is a UV resistant 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
  Mix Ratio Pot Life Cure Time
EpoxAcast 690 Clear Hardener
100A:30B by weight 5.0 Hours 24 Hours

Free Form® AIR Lightweight Epoxy Putty
 Free Form® AIR Lightweight Epoxy Putty
Free Form® AIR Lightweight Epoxy Putty
Technical Bulletin
MSDS
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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