PU-310 Polyurethane PU Self-leveling concrete expansion joint fillers
∎Product Description
PU-310 is one component polyurethane with excellent elastic joint material.
 Self-leveling concrete expansion joint fillers are elastomeric, pourable sealants designed to fill horizontal gaps in concrete, such as driveways, patios, and garage floors. They are typically polyurethane or polyether-based, allowing them to remain flexible and move with the concrete as it expands and contracts, preventing water infiltration and future cracking
∎Key Features
1.Has good UV resistance, fuel resistance, heat and humidity resistance, water resistance and low temperature resistance.
2. Strong tear resistance, good adhesion to steel, aluminum and other metals, various concrete, buildings, etc.
3. Suitable for areas where seam activity is hit, especially airport runways, to tell the road's expansion joints.
4. Good technicality, not easy, non-toxic, safe and reliable to use, easy to operate.
5.It has excellent air tightness and water tightness, good low temperature flexibility, and can be cured at room temperature or humidified.
6. Self-Leveling Sealant: A high-performance construction-grade sealant for horizontal cracks and joints.
 
∎Typical Applications
1.Bonding and sealing for the gap of joints of road, airport runway, square, wall pipe, wharf, roof, underground garage and basement.
2. Sealing for leakage of oil refinery and chemical plant.
3. Bonding and sealing for industrial floor, such as epoxy floor and all kinds of
paint surface.
4. Excellent bonding, sealing and repairing of various kinds of materials, such as
concrete building, wood, metal, PVC, ceramics, carbon fiber, glass, etc.
 
 
∎Packing Specification
●Sausage      600ml
●Pail/Drum     25kg/drum, 230kg/drum
 25kg pail, 36 pails per pallet
 
∎Directions for Use
● Cleaning: The substrate surface must be solid, dry and be clean.Such as no dust, grease, asphalt, tar, paint, wax, rust, water repellent, curing agent, isolating agent and film. Surface cleaning can be dealt with by removing, cutting, grinding, cleaning, blowing, and so on.
● Operation: Put the sealant into the operating tool,then injecting it into the gap.
● Reservation gap: The construction joint will expand as the temperature change,so the surface of the sealant should be lower than 2mm of the pavement after construction.
● About maintenance time: At the standard state, the maintenance time is about 5 hours. It depends on the actual construction conditions. The standard state is that the temperature is 23±2℃,and the humidity is 55 ± 5%RH.
● Operation Methods: Because the packing is different, the construction methods and tools are slightly different. The specific construction method.
 
∎Attention of operation
● Don’t mix alcohol into the product, it will cause the product invalid. The tools with the alcohol can’t be used before cleaning well.
● Avoid contact with eyes and skin. If contact with your skin, scrub first with soap water or alcohol, then rinse with water. 
● It is forbidden to build on the surface of the wet substrate.
●Transportation: Avoid damp, high temperature, isolation and rain, far away from heat, handle with care and prohibit extrusion collision.
● Tools Cleaning: It can be soaked in toluene or xylene. It is strictly forbidden to immerse in alcohol and other alcohol solvents.
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