CS-A4 polyurethane construction sealant? "Cui" brand CS-A4 polyurethane construction sealant is a high performance, flexibility after curing, sealing the one-component polyurethane adhesive with atmospheric air temperature reaction curing to form a permanent elastomeric material. Is a high-strength structural sealant, widely used in building materials bonding and sealing. ? Product Features: 1. One component, thixotropic, easy construction; 2. High strength, high flexibility, strong bonding; 3. Water, oil, anti-aging; 4. No solvent, no volume shrinkage after curing? ; 5. paintable surface. ?? Technical parameters??? Model CS-A4M?? The chemical basis of one-component polyurethane?? Appearance white, gray, black, cream?? Dry time (min) 35-80?? Curing speed (mm / 24h) ≧ 3?? density (g / cm) 1.4-1.6?? Hardness (HA) ≧ 30?? Tensile strength (N / mm) 3.0?? Elongation at break (%) ≧ 400?? Shear strength (Mpa ) 1.5?? Tear Strength (N / mm) 15.0?? sag (mm) 0?? low temperature properties (℃) -45 ℃ without breaking?? Proposed construction temperature (℃) 10-40?? Service Temperature (℃ ) -40-80???? application??? suitable for a variety of architectural precast concrete structures, metal structures, such as the seam adhesive sealing, a variety of building expansion joints and Deformation, construction joints sealing, various ceramic sealed seams decorative stone floor, a variety of building walls and other decorative cover plate seal. ? Construction Notice??? Please carefully view the product identification sealant 1. Before use. ? 2. Maintain the joint surface clean, dry and remove all grease and dust. ? The need to use the cleaning of the companies supporting the activator treatment or coated with an appropriate primer. ? 4. coated with manual or pneumatic gun construction, rapid adhesion in dry time. ? 5 at a temperature of 5-40 ℃, RH construction best at 65% -75% of the environment. ? 6. Uncured CS-A4 available cleaners removed from the tool or device. Once cured material can only be removed mechanically. Hands and exposed skin glue glue immediately with a suitable industrial hand soap and water to wash, do not use solvents. ?? Packaging storage? 310ml aluminum tube, 400ml soft pack, 600ml soft pack. Below 25 ℃ dry environment storing a period 9 months, flexible six months.