Our 90 resins is the same formula as the 45, it too was made to be a point resin for long cracks and as a primer. It's viscosity allows for it to be used for stone-breaks too. Use for bullseyes or combination breaks with no extended legs when the windshield is hot. Can be used in the first cuople of inches at the point of a short crack or a floater crack. Exceeds the Repair of Laminated Auto Glass Standard (ROLAGS) requirements. Like all of our resins it is moisture resistant. Temperture resistance is - 30 (below zero) F to 250 F.