pu construction sealant

pu construction sealant 1. TECHNICAL DATA SHEET(1):Testing Items(2)performanceAppearanceBlack homogeneous paste White/Gray Homogeneous paste Density(g/cm3)1.35±0.051.35±0.05Sagging properties(mm)00Shore A hardness(A°)40±540±5Tensile strength(Mpa)≥3.8≥1.2Elongation at break(%)>400>400Volatile content(%)≤5≤6Touch Dry time(min)≤60≤90Curing speed(mm/d)3 53 5Extrudability(ml/min) ≥80≥80Pollution propertiesNonNonApplication temperature( °c)+5 +35+5 +35Shelf life(month) (3)99 Note: (1)All data above ware tested under standardized condition. (2)All data listed in the chart were series; please refer to the related datasheet for special items. (3)stretch modulus≥3.5 for black color items. (4)Storage condition has a direct impact to the products’ shelf life, Please refer to the instruction for special items’ storing. 2. DESCRIPTION: Lejell 230 is a one component gun grade polyurethane based construction sealant, it is of high modulus and cures by reaction with atmospheric moisture to form a soft rubber like material with high adhesion strength. 3. USES: Lejell 230 is suitable for place where strong adhesion strength is required. * Joints in the construction industry, particularly where a higher modulus and lower movement capacity are required for joints with low or medium movement. * Connection joints between floor/stairs and wall. * Connection joints between floor and machinery. * Seam sealing / sealing of pipe ducts / ventilation systems. * Multi purpose in metal and wood construction work. 4. ClEANING: Clean and dry all surfaces by removing foreign matter and contaminants such as oil dust, grease, frost, water, dirt, old sealants and any protective coating. Dust and loose particles should be cleaned. 5. PACKAGING: * 310ml cartridge, 20 pcs/carton * 600ml/400ml sausage, 20 pcs/carton 6. APPLICATION: Minimum application temperature: 5°C. Lejell 230 should be dispensed from either the cartridge or sausage by means of a caulking gun. Pierce the membrane at the top of the cartridge and screw on the nozzle. Cut nozzle to give the required angle and bead size. Place the cartridge in an applicator gun and squeeze the trigger. For sausages, a barrel gun is required, clip the end of the sausage and place in barrel gun. Screw end cap and nozzle on to barrel gun. Using the trigger extrude the sealant, to stop depress using the catch plate. Apply Lejell 230 in a continuous bead using enough pressure to properly fill the gaps. 7. ADVANTAGES: * mildew proofing, Meet national standard for sealing of drinking water pipe. * One component, no need of mixing. * Easy for applying. * High adhesion strength. * Excellent durability, weathering resistance.. * Self bonding, easily for repairing. * three kinds of colour available. * 600, 400 cc aluminium foil packaging, 310 cartridge package for choice. * Can be painted. 8. ADVICE: * For common occasion, after cleaning out the surface with organic solvent, this product can be used directly. * Please construct by application instructions strictly, failure of stickiness may be caused by any operation disobeying construction techniques. * This product is innocuous after curing completely, but before set, please avoids contacting with eyes and skin. In case of eyes and skin contact, wash immediately and thoroughly with soap and water. See doctor immediately if it is serious.