DA 4518/E-Glass

A modified epoxy system coated on heavy weight unidirectional E-Glass fibers.

DA 4518/E-Glass Unidirectional E-glass epoxy prepreg

This product is designed to build excellent unidirectional strength using a mini-mum number of plies.

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DA 4518/E-Glass Uni is a modified epoxy system

DA 4518/E-Glass Uni is a modified epoxy system coated on heavy weight unidirectional E-Glass fibers. This product is designed to build excellent unidirectional strength using a minimum number of plies. DA 4518/E-Glass Uni also features extended room temperature out time and service temperatures to 300°F.


Uncured Weight: 0.270 lbs./sq ft or per customers requirements

Thickness: 0.010” per ply

Resin Content: 42% by Weight

Cured: The cured properties were obtained using a press cure of two hours at 275°F with 25 psi followed by a post cure of 350°F for 4 hours.

Thickness: 0.0085” per ply

Void Content: Less than 1% by Volume

Volatiles: Less than 1%

Shelf Life: One year at 0°F

Six months at 40°F

Two months at 75°F


Flexural Strength (ASTM D 790) @ 75°F 206,000 psi @ 250°F 106,000 psi

Flexural Modulus @ 75°F 6.25 Msi. @ 250°F 5.80 Msi.

Tensile Strength (ASTM D 3039) @ 75°F 150,000 psi  @ 250°F 102,000 psi

Tensile Modulus @ 75°F 6.40 Msi @ 250°F 6.60 Msi

Beam Shear (ASTM D 2344) 10,328 psi


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.


Remove material from cold storage at least 20 hours prior to use to allow for stabilization at room temperature. Keep the material wrapped to prevent moisture from condensing on the adhesive. If details are cut and replaced into cold storage, shorter stabilization times may be used. Cut the material to size, remove the release paper and apply to part or mold. Remove the separator paper and join the parts together. Parts are now ready to be bonded and may be cured in a press, autoclave, or vacuum bag in an oven. Apply at least 30 psi pressure.


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.


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.


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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