Sid said - Fiber glass cloth has a sizing coating on each strand to help the epoxy resin to bond to the glass. The shelf life for most fiber glass sizing is five years. After that time the wetting out with the resin becomes more difficult and will result in a weaker structure. The older the cloth the worse the situation will be.
I posted this question to the group some time ago and was told that there is no end shelf life on fiber glass cloth. Would someone in the industry, (If there is someone in the group), please check in and clear this up. Patrick Driscoll Saint Paul, MN patrick36 at usfamily.net www.pensbypat.com If you can read this, Thank a teacher If you are reading this in English, thank a veteran
