How can you physically check if SP-207 is dry?

To determine if SP-207 is dry, physically touching it with a clean nitrile glove outside the bond area is an effective method. This approach allows for a direct tactile assessment of the cured state of the material without risking contamination of the bond area. If the product feels dry and does not leave any residue on the glove, it is an indication that SP-207 has fully cured.

Visual inspection can sometimes be misleading, as it may not accurately reflect the material's status, particularly if color change is subtle or not consistent across the application. Measuring the temperature of the surface might provide some indication of the curing process, but it is not a definitive method to assess whether the adhesive is thoroughly dried. Smelling for a chemical odor can indicate that a product is still emitting volatile compounds, but it is not a reliable indicator of dryness and raises safety concerns regarding inhalation of fumes.

In summary, the physical touch test ensures an accurate assessment of dryness while avoiding contamination to the bond area and providing a clear indication of whether the material has cured properly.