Coupon rate vs. YTM[edit] 1  If a bond's coupon rate is less than its YTM, then the bond is selling at a discount. 2  If a bond's coupon rate is more than its YTM, then the bond is selling at a premium.  If a bond's coupon rate is equal to its YTM, then the bond is selling at par.
The silicone sprung a leak so I emptied the tank half way into buckets (thank god I moved recently and had 10 Home Depot buckets around) and applied silicone aquarium sealant on the inside and outside of that area. The silicone says it take 24 hours to fully dry-does it really take that long.
Silicone sealant does not dry. The process here is a polymerization of the silicone with moisture in the air to form a new semi flexible compound. At 45 degrees, the air is devoid of most moisture, so it will take a much longer time for polymerization to take place.bviously this depends on the thickness of sealant ! If the layer is only 4 or 5 mm. it will 'dry in about 20- 30 Min's. but not fully 'cure' for about 72 hours.