For Henry 107 style emulsions, key specifications usually include solids or residue content, viscosity range for brush, roller, or spray, and guidance on wet mil thickness per coat with recommended number of coats to reach target dry film thickness. Application limits typically include minimum ambient temperature for curing, avoidance of rain or ponding water before full cure, and restrictions on applying too thick in one pass to prevent skinning and trapped water. Substrate must be clean and sound, and porous surfaces may need priming. For procurement, require the latest data sheet and confirm suitability for your roof assembly and exposure conditions.