FIBERGLASS CAST,”ARE LIGHTER, THINNER, STRONGER, MORE POUROUS, ALLOW BETTER VENTILATION June 24, 2017 mfadmin Surgical Average Rating 0 out of 5 stars. 0 votes.You must log in to submit a review. FIBERGLASS CAST,”ARE LIGHTER, THINNER, STRONGER, MORE POUROUS, ALLOW BETTER VENTILATION CAN GET WET”