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Crossply Prepreg Glass Laminate

Electrolock manufactures a product line of crossply glass laminate used in composite applications where compression strength and high temperature threaten the strength of standard woven fiberglass prepregs. The crossply laminate consists of a high temperature resistant epoxy resin system and unidirectional fiberglass yarns stacked on top of one another in the machine direction and cross direction. The structure provides higher strength than a standard epoxy impregnated woven fiberglass fabric. The unidirectional fiberglass yarns provide good compression strength and flexural strength in composite applications of rigid tubes or armor protective surfaces that require hoop strength and heat resistance.  The prepreg contains 30% resin content with DMA Tg measurements up to 200°C.  The standard thickness is .020” thick and 25” wide, however it and can be custom made to other thicknesses and widths.

Our crossply prepregs can be machined to tight tolerances after cure and need to be stored at 40°F for better results.  The standard core I.D. is 3” and is typically shipped refrigerated for transport.  If you have an application for crossply prepregs that require strengths above standard woven prepregs, please contact us at Electrolock, Inc. in our Duncan, SC plant.

Download Specifications


Substrate Fiberglass - Biaxial
Cross Ply
Total Weight (g/m2) 1000 (+/- 6%)
Thickness (inches) .022 +/-.002
Resin Content (%) 36 (+/- 4)
Thermal Class 155
Compressive Strength @ 155 C
(ASTM D6641)
> 32 KSI
Cure Cycle—recommended 2 hours at 160°C
Tests to

Tests to determine application suitability should be made by each user.
Electrolock can not guarantee performance in the user’s application.
Copyright 2012 Electrolock, Incorporated.
Electrolock, Inc. is an ISO-9001-2008 certified company.


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