There are four different product types in the fluid applied area.
- Elastomeric Low Solid Volume products. This is a rubberized undercoating specially formulated for roofing.
- Acrylic, Water based, easy to handle, good adhesion to most roof types, most commonly used reflective coating, cures by evaporation, reasonably strong, very sensitive to weather.
- Silicone, Solvent based, typically used for spray polyurethane roofs, weather very well, weaker tensile strength, good water resistance. One you go silicone you have to stay silicone always.
- Urethane, this is solvent based, 3-10 times stronger than acrylic, greater adhesion to most roof types than acrylic, most cure with exposure to air, less sensitive to weather, more difficult to work with.