Q-Seal 290 Detector Loop Sealant is a one component thixotropic (thickened, like paste) moisture curing polyurethane sealant. It is designed for use in both asphalt and concrete pavement to provide a weather and chemical resistant waterproof seal. This product requires no catalyst.
Q-Seal 290 is primarily used as a protective seal for traffic detector wire loops employed in actuated intersections. It may be used as a sealant for saw cuts in concrete or asphalt surfaces. Use of this sealant may help to reduce the effects of weather upon the disturbance of the cut made into the roadway surface.
Q-Seal 290 will begin to dry ‘skin over’ in approximately 3 hours at 77°F and 50% R.H. At temperatures below 77°F this product will take a proportionately longer time to cure. At temperatures above 77°F it will take a proportionately shorter time to cure.
The roadway should be dry, dust free and as smooth as possible before installation of Q-Seal 290. It is recommended that air and roadway temperatures at time of sealant application should not exceed 100°F or fall below 36°F. It is recommended that Q-Seal 290 be applied by using a pressurized dispensing system, allowing for positive injection of Q-Seal 290 into the saw cut to properly encapsulate the loop wire. Normally the dispensing system consists of a 10:1 ratio pump with air regulator, gauge and air valves. The primer is an elevator with a follower plate that should be resistant to aromatic hydrocarbons. The hoses used should be Teflon lined with stainless steel cover. The flow gun itself should be a 6000 psi extrusion flow gun with various wand attachments.
To apply the 30 fl. oz. cartridge, use a manual or air-operated caulking gun. We can supply the caulking gun as well.
Q-Seal 290 is available in Grey or Black, in 5 gallon pails and 30 fl. oz. cartridges.
Shelf Life is 1 year from date of manufacture.
Use Chemque solvent S-235. Caution: Clean equipment after use. Use Chemque Q-CLEAN to remove sealant from your hands.
Q-Seal 290 Detector Loop Sealant exhibits exceptional chemical resistance to the following chemicals:
- De-icing salt
- Gasoline / fuels
- Hydraulic Brake Fluid
- Motor Oil
- Sodium Chloride (5%)
SAFETY AND HANDLING PRECAUTIONS
Contains MDI (methylene diisocyanate). Keep away from heat and open flames. Use only in well ventilated areas. Do not breathe in vapors. Wear an approved respirator mask. In the case of contact, immediately flush eyes or skin with plenty of water for at least ten minutes. If contact is made with your eyes, get immediate medical attention.