Most likey a type of two part epoxy thats like a hard rubberie/plastic this could take the hatch twisting..............but i dont see the durglass not working , ive seen hatchs twist but i thought it was miner , im not sure cus i own a vert but does everyone hatch twist that bad?
btw i plan to mold my salenn wing on to my trunk, i think it should make it look awsome