WHAT IS PUNCTURE PROOF? It’s a multipurpose liquid tyre sealant and tyre coolant injected into each tyre through the air valve. It’s function is to coat the inside tread of the tyre, thereby preventing punctures, maintaining correct air pressure, and lowering tyre casing temperature. THERE ARE 2 TYPES OF PUNCTURE PROOF ∗ HIGH-SPEED for commercial / domestic road vehicles, (tested up to 240kms/hr) ∗ LOW-SPEED for off-road equipment and slow moving vehicles (<75kms/hr)