At GT we have never doubted the longevity of our windscreen repair kits. 12 years on we have just taken in a fully functional windscreen repair kit on a part exchange for our very latest BS AU242B:2022 self leveling, vacuum and pressure windscreen repair kits. Within the windscreen repair kit we were astonished to find the condition of the seal kit box. The picture shows how it started life on the left and after completing many thousands of repairs returned as the image to the right of the picture 12 years later. We haven't got the heart to throw it away so its going in our windscreen repair training room cabinet on display!