The Emshield DFR2 and WFR2 are single-unit fire-rated expansion joints made of fire-retardant foam that can be used in both new and retrofit applications. The DFR2 is coated on the underside with an intumescent fireproof material and on the outer side with fuel-resistant silicone, making it ideal for roads and other horizontal joints. Use the WFR2 for vertical wall joints. Both products have a two hour fire rating, and can easily be installed in joint japs that have been primed with epoxy. Emseal. 800-526-8365.