PU (polyurethane) Adhesive Sealant for Constructoin Joint Sealing
1. DESCRIPTION It is a low modulus, one component moisture-curing polyurethane adhesive sealant with permanent elasticity. It is manufactured strictly under the system of ISO9001 and ISO14001.
2. ADVANTAGES One component, ready for immediate use, no mixing required Excellent adhesion High durability High abrasion resistance and tear strength Non-corrosive Low modulus Paintable Good weathering and water resistance Fast cure rate Certified for use in contact with potable water Can be painted over with many water-, solvent- and rubber-based paints (preliminary test recommended)
3. USES As an elastic adhesive for: Assembling metal framed buildings Cover plates and covings Light-weight construction materials Acoustic ceiling tiles Wood, metal or plastic window and Door frames
4.PROCESS Cleaning: Clean, sound, dry and free of oil, grease and surface contaminants such as form release agents, curing membranes and hydrophobic water repellents. Thoroughly remove all loose particles and dust. Priming: Primers may be required to achieve optimal adhesion depending on the nature of substrates.
5. APPLICATION: Minimum application temperature 5° C. For easier use store cartridges at temperatures between 10~20° C. Break inner seal at extrusion end of cartridge.
Affix nozzle to cartridge, cut tip to suit joint size. Install into a caulking gun.
Apply in spots or beads on prepared surface, tapping or pressing the part to be adhered against the substrate.
The thickness of the bead depends on the surface texture (1mm~5mm).
For sausages, a barrel gun is required, clip the end of the sausage and place in barrel gun.
Using the trigger extrude the sealant, to stop depress using the catch plaste.
Apply sealant in a continuous bead using enough pressure to properly fill the joint. When masking sides of joints for neatness, remove tape before the sealant cures, Always allow sufficient surface exposed to moisture.
7.STORAGE AND SHELF LIFE When stored at the recommended conditions in original, unopened containers, this product has a shelf life of 9 months. The shelf life of polyurethane sealant is related to the temperature and humidity of the environment.
The recommended storage temperature is 5-25° C, humidity is <50% RH. It is strictly prohibited that the transportation or storage temperature is over 30° C or the humidity is over 80% RH.
And high-temperature container transportation is prohibited as well. In the long-time high temperature and high humidity storage environment, the product is easy to get viscous, extrusion will be deteriorated and shelf life will be shortened.
8. Basic Techincal Info
Black, white, grey
1.40 ± 0.05 kg/l
45 min. approx.
Rate of cure
2.6 mm/24 hrs
Shore A hardness
Elongation at break
Glass transition temperature
Service temperature (continuous) Short – term (up to 48 hrs)