Polyurethane caulking compounds road is a new two-component polymer materials, widely used in highway joints, seams airport apron and runway construction, bridge expansion joints, underground tunnels, reservoirs, dams and so on. First, the performance characteristics: 1, high strength, elongation, strong bond. 2, the product wearable, waterproof, resistant to high temperature. 3, room construction, human and environmental pollution. 4, may be self-leveling, in the face vertical construction, the better thixotropy, flow does not occur. Second, the technical indicators :( execution JC / T482-2003 standard) pilot project technical indicators 20HM 25LM 20LM density, g / cm3 specified value ± 0.1 mobility, h sag (N-type), mm ≤3 leveling (L-type ) smooth dry time, h ≤24 extrusion resistance, mL / min ≥80 adaptation period, h ≥1 elastic recovery rate,% ≥70 tensile modulus, Mpa 23 ℃> 0.4 or> 0.6 ≤0.4 and ≤0.6 -20 ℃ elongation adhesion without damage after flooding elongation adhesion without damage cold drawn - hot adhesion without damage after the mass loss rate,% ≤7 Note 1): This only applies to one-component products. Note 1): This only applies to multi-component products, allowing the use of other indicators of the value of supply and demand sides agreed. Three. Instructions 1. Put the seam dirt or debris cleaned from dust blowing in the net with a high-pressure gas. 2. PE foam backing strips embedded in the seam. 3. The B material A into the compound according to the proportion of the electric and stirred for 5 minutes. 4. Mixing good mix, to be poured within one hour infusion tool with the seam. Four. Transportation, storage, packing: 1.5kg / group, 32kg / group. 2. This product is stored in a dry, ventilated, cool place, shelf life from the date of manufacture unopened six months. 3. Transportation of dangerous goods handled by non-