AltroFix 19 Plus is a solvent and water-free, two-part polyurethane adhesive. That means water and most other liquids do not affect it after it’s cured. it is a two-part adhesive, so you have to mix two components before you start, known as Part A and Part B, but each size container comes with the correct quantities for mixing already measured and separated out, so you don’t have to worry about getting the measuring right.