The book was in a space opera/rpg style. The hull was described as being made from a very rare and expensive material that would concentrate and refract laser fire back to the enemy. It would repair by sort of smoothing out like amber after a fight. The ship itself was old and weak with the hull being its major strength.
The captain and crew were sent out to find more tech through a new wormhole as I recall. There was a threat coming. Keeping them there wouldn’t make a difference but sending them out might if they found something. Over the course of the book they encountered various species and fought/allied to improve the ship. In the end they were returning hopefully to save everyone.
I checked his book out from the library as a paperback back around 2000-2005. I remember a golden laser coming from a ship in space on the cover. I think there was a male captain and a female specialist who was put on board who developed some relationship.