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DA 2350 One Part Core Fill low density modified epoxy.

DA 2350 One Part Core Fill low density modified epoxy is formulated to cure in one hour at 250°F (121°C). Typical application is honeycomb sandwich edge fill and potting around fasteners and inserts.

PHYSICAL PROPERTIES:

Density: 50 lbs./cu.ft.

Volatiles: Less than 1%

Gel Time: ~12 minutes at 250°F

Shelf Life: One year at 0°F

Four months at 40°F

Twenty days at 75°F

MECHANICAL PROPERTIES:

Cure Cycle: Cured for one hour at 250°F

Compressive Strength @ RT. 7000 psi @ 180°F 3500 psi

CURE CYCLE:

The adhesive may be cured using either standard heat-up methods or by in-hot, out-hot press applications. A pressure of 30 psi is recommended, however pressures of 10 to 50 psi may be used.

STORAGE:

Store material in a contaminate free container and store at O degrees F for extended storage. For shorter storage time requirements store at 40 degrees F, this enables quicker stabilization times.

APPLICATION:

Remove material from cold storage at least 20 hours prior to use to allow for stabilization at room temperature. Keep the material containerized to prevent moisture from condensing on the material.

Use a spatula to trowel the compound along the edge of the honeycomb or to push into the honeycomb cells. Parts may be cured at this point or may be co-cured with adhesive or prepreg in panel bonding.

CLEAN UP:

The adhesive can be removed from non-bonding areas with ketones or methylene chloride. Be sure to follow all Material Safety Data Sheet (MSDS) guidelines for the solvent to be used.

CAUTION:

This material contains epoxy resins and amines which may cause irritation to sensitive skin. Avoid contact with eyes or skin. If contact with skin occurs, wash as soon as possible with soap and water. If contact with eyes occurs, flush with water for 15 minutes. Do not handle or use this material until Material Safety Data Sheet has been read and understood. The user of this material is required to use the necessary protective equipment as directed by applicable state and federal laws when handling, curing, and grinding this material.

IMPORTANT NOTICE:

Information in this data sheet has been obtained under controlled laboratory conditions and is believed to be accurate. Properties listed are typical values and are not intended for use in preparing specifications. Actual values may vary. No warranty is expressed or implied for which APCM assumes legal responsibility. APCM cannot be responsible for misapplication or handling and use under conditions beyond its control and under no circumstances shall be liable for incidental or consequential damage resulting from handling or use of this material.

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