A product, though perfectly designed and manufactured, may be defective if not accompanied by adequate warnings of its dangerous characteristics.
Manufacturers should not be held liable for failing to warn about risks that would be apparent to ordinary users. A product is not unreasonably dangerous when its degree of danger is obvious and generally known or recognized. If a danger is obvious, then its obviousness constitutes a warning, and the product seller’s failure to provide a separate warning should not constitute a defect. Moreover, regardless of the ordinary user’s knowledge of the danger, there is no duty to warn of dangers actually known to the user of a product.