Linseal is spread over the inside of a tyre tread area as the wheel revolves, ready to seal puncture after puncture. When the puncture occurs, the escaping air pressure forces Linseal into the hole immediately forming a strong airtight seal.inseal is the revolutionary liquid puncture preventative. Linseal is designed to remain fluid inside a pneumatic tyre or innertube. Linseal will seal a hole in the tread area of a tyre instantaneously when applied BEFORE a puncture occurs.
Short Definition: Trypophobia is the fear of groups of holes. It can also involve fears of various patterns.
Photos: Trypophobia: A fear of holes Others believe that it could be a built-in reaction to mold, parasites and contagious diseases. For example, mold on bread or vegetables have certain visual cues and characteristics that are similar to trypophobic stimuli,  said researcher An Lee.