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L-501

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Woven Adhesive Prepreg

851 W. 18 Street Costa Mesa, CA 92627 (949) 650-8106 Fax:(949) 631-6190 www.jdlincoln.com

Product Data Sheet

Revised: 11/14/08

Description

L-501 is a 250°F (121°C) curing, high peel strength, flame retardant, epoxy prepreg available on fiberglass fabrics such as 7781 style or other styles as requested. L-501 is intended to be used as a single ply or multiple ply skin for aramid/phenolic honeycomb, aluminum honeycomb or PVC foam core sandwich panels.

Advantages of L-501

No adhesive is required because of the high peel strength and high toughness of the L-501 resin matrix. L-501 can be bonded directly to a variety of core materials. Easy processing is another major advantage. L-501 can be cured with vacuum bag, press or autoclave type cures from 90 minutes at 235°F (113°C) or in just 40 minutes at 275°F (135°C) with contact pressure (235°F (113°C) cure temperatures are recommended for urethane or PVC core). L-501 is also an excellent prepreg when high impact strength and high toughness are required.

Physical Properties on 7781 Glass Fabric

Standard Weight: 0.105 lbs/ft² (513 g/m
2 ) Standard Resin Content: 42% by weight Standard Tack: Slightly tacky on one side Cured Ply Thickness: 0.010” (0.254 mm) Other Weights, Resin Contents, and Fabrics are Available.

Flammability

Self extinguishing per FAR part 25.853. Results may vary depending on cure procedure.

Availability

Up to 60” width in rolls up to 100 yards long (152 cm x 91 m)

Shelf Life

6 months at 40°F (4°C) or below 7 days at Room Temperature (70°F or 21°C)

Cure Cycles

40 minutes at 275°F (135°C), or 60 minutes at 250°F (121°C), or 90 minutes at 235°F (113°C). L-501