1:5 PU Sealer
This product is a two-component material, component A is a prepolymer containing polyisocyanate groups, and component B is a silicone-modified color paste combination. This material combines all the advantages of silicone and polyurethane materials. Through silicone modification, it enhances the adhesion, hydrolysis resistance, and humidity and heat aging resistance of the PU combination. It is the first choice material for various athletic track.
Technical Index
item | Standard |
Group A | Group B |
color | transparent or ligh yellow transparent viscous liquid | viscous liquid |
viscosity（within 25℃，mpa·s） | 500~1500 | 16000~22000 |
Solidity（%） | ≥ 99 | ≥ 99 |
Mixing ratio | Group A：Group B：Drier=1:5:0.04~0.08 |
Potlife（within 25℃，min） | ≥ 60 |
Surface solidifying time（within25℃，h） | ≤ 4 |
The total solidifying time（within25℃，h） | ≤ 16 |
Shore A hardness（HD） | 45~50 |
Absorbing shock vertically（%） | 35~50 |
Deformation （mm） | 1.0~2.0 |
Anti-slide value（BPN,20℃） | ≥ 50 |
Tensile strength（MPa） | ≥ 0.9 |
Rupture elongation（%） | ≥ 70 |
Fire resistance（ClS） | 1 |
Packing:
Group A: 200kg/barrel Group B: 300kg/barrel
Store in a cool, dry, well-ventilated area, keep away from fire and heat source, avoid sunlight.
Potlife: 6months, after 6months,it need to test again.
Product ratio
1. Component A: Component B: Curing agent = 1: 5: 0.04
Performance characteristics
1. It has extremely strong bonding properties to various rubber particles;
2. After curing, it has good weather resistance (hydrolysis resistance, oxidation resistance, radiation resistance, and mildew resistance);
3. Excellent wear resistance. It can ensure that the appearance and structural characteristics are permanent and stable, and can meet the needs of long-term high-frequency use;
4. The PU combination has better stretch and strength.
Instructions
Weigh components A and B in proportion, first put component A into the ingredients bucket, then add component B, stir evenly with an electric mixer, and then pave and construct.
Precautions
1. This product has been configured according to the proportion. During use, do not add diluent and other filling materials at will. Unprepared materials should be sealed at all times;
2. When dispensing glue, the catalyst should be added in a dispersed manner to avoid concentrated addition of glue into agglomerates. Attention should be paid to ventilation at the operation site;
3. The asphalt base layer or cement base layer must comply with the construction requirements of plastic stadiums;
4. The suitable construction temperature for this material is 5℃~40℃.
Safety Precautions
1. Keep out of reach of children.
2. If this product touches the skin or face, rinse immediately with cleaning solution and water. If serious, seek medical attention.
