PUNCTURES SEALED

Timaru Herald, Volume CXXXVII, Issue 19668, 9 December 1933, Page 14

PUNCTURES SEALED

REMARKABLE PREPARATION. A preparation that should prove a boon to motorists was demonstrated to a group of interested spectators recently. This preparation, which is injected into the interior of an inner tube, automatically seals a puncture almost immediately after the tube has been pierced. At the demonstration several holes were pierced through the tyre of a heavy car and, to the amazement of all the spectators, the tyre did not go flat. Closer inspection showed that the outer cover was riddled with nails, some of them being four inches in length. The tyre was later removed, and about ninety automatically sealed punctures could be distinguished. A glance at the inside of the outer cover disclosed numerous spikes which had pierced the inner tube. This preparation (a New Zealand product) Is guaranteed by the makers not to injure the rubber in the tube. If anything it is claimed that it tends to prolong its life. Once injected into the tube, the preparation is expected to last its lifetime. It spreads evenly around the inside of the tube, making a perfect seal immediately it comes into contact with air, the result being that whenever the tube is punctured, the hole is immediately closed. The additional weight in the tube does not cause any wheel wobble, nor does it in any way affect the steering. The makers do not claim that the preparation will seal a blowout or a long rip in a tube, but they do claim that it will eliminate fully 80 per cent, of tyre and tube trouble; also that when the preparation has been inserted it is not found necessary to blow up the tyres so frequently.