IFS polyurethanes exhibit properties similar to epoxies, but also offer exterior durability and are often more ‘overbake stable’ than epoxies (though not as good as Polyester TGIC).
Disadvantages include a more restricted cure range, potential odor and smoke from cure, and significantly higher cost.
Polyurethanes are most commonly found in exterior functional applications where chemical exposure is a concern
IFS polyurethane advantages include:
- excellent adhesion
- excellent chemical resistance
- excellent corrosion resistance
- excellent flexibility
- excellent hardness
- good exterior durability
Their disadvantages can be summarized as follows:
- restricted cure range - tight application and cure parameters
- odor on application/cure
- smoke created during cure
IFS polyurethanes can be custom formulated.
Please note that these represent general guidelines. Talk to the IFS lab or representative for a more detailed explanation and specific uses.