PU Construction Sealant (521)
1. TECHNICAL DATA SHEET:
| Testing Items |
Performance |
| Appearance |
Black/White/Gray homogeneous paste |
| Density ( g/cm3 ) |
1 . 35±0.05 |
| Sagging Properties(mm) |
≤1 |
| Elongation at break(%) |
≥600 |
| Volatile content(%) |
≤4 |
| Stretch modulus (Mpa) |
≤0.4 |
| Touch dry time(min) |
≤180 |
| Elastic recovery(%) |
≥80 |
| Extrudability (ml/min) |
80 |
| Pollution properties |
Non |
| Application temperature) |
+5 ~ +35 |
| Shelf life(month) |
9 |
2. DESCRIPTION:
Lejell 220 is a multifunction gun grade polyurethane based construction sealant, it is of low modulus and cures by reaction with atmospheric moisture to form a soft rubber like material with moderate elasticity and hight adhesion strength.
3. USES:
Polyurethane construction sealant for sealing cracks, construction joints, doors, windows, roofing, gutters, sills, basements, vents, skylights, wall penetrations, and precast panels.
4. ADVANTAGES:
*mildew proofing, Meet national standard for sealing of drinking water pipe.
*One component, no need of mixing.
*Easy for applying.
*excellent elasticity and 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.
5. 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.
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