POLEPOX-PU 45
One-component, low-modulus polyurethane sealant that cures on exposure to atmospheric humidity. It possesses excellent adhesion to all typical construction materials such as cement-based materials, brick, ceramic, glass, wood, galvanized and painted sheet iron, and various plastics.
FEATURES & BENEFITS
- Possesses permanent elasticity.
- 25% movement capability.
- No surface tackiness after full cure.
- Does not pick up dirt.
- No shrinkage.
- Cures bubble-free.
- Enhanced storage stability.
- No sagging - Thixotropic.
APPLICATION AREAS
- Expansion joints between many different construction materials.
- Movement and connection joints in floors.
- Indoor and outdoor applications for pedestrian and traffic areas.
- Joints between prefabricated construction materials.
- Sealing and bonding of ventilation ducts, gutters, and spouts etc.
- For expansion joints between pre-cast concrete panels.
INSTRUCTIONS
- Before application, be sure that joint surfaces are clean, dry, and free of all contamination.
- Apply sealant evenly. If necessary, use masking tape and remove the tape while the sealant is still soft.
- Joint width/depth ratio should be 2:1.
- If necessary, use back-up material to adjust joint depth.
- Sealants should adhere to only two surfaces of the joint: Use backer rods and bond breakers to facilitate.
CONSUMPTION (Approx.)
Joint Width 15 mm 20 mm 25 mm 30 mm 35 mm Joint Depth 8 mm 10 mm 12 mm 15 mm 15 mm Joint Length / 600 ml 5 meters 3 meters 2 meters 1.3 meters 1.1 meters
SURFACE PREPARATION
Substrate Recommended Cleaning Procedure and Materials Glass Degrease with alcohol or MEK Aluminium, light alloys and stainless steel Degrease with alcohol or MEK Other Metals Lightly abrade then degrease as above Wood Lightly abrade surface then remove dust Plastics Degrease using an agent recommended by plastics manufacturer Concrete and other alkaline surfaces Brush and remove dust
STANDARDS
Meets or exceeds the requirements of the following specifications:
- ASTM C920 Type S, Grade NS, Class 25, Use; NT, A, and M.
- CE marked for EN 15651 for façade and pedestrian walkway applications. ISO 11600 F 25 LM.
- VOC content specifications in LEED credit EQc4.1 "Low-emitting products".
- SCAQMD rule 1168 and French VOC requirements for class A+.
- BS 6920-1 for the metallic water-soluble impurities.
RESTRICTIONS
- It must not be used in totally confined spaces where sealant cannot cure due to lack of atmospheric moisture.
- Do not use in applications where continuous water immersion is possible.
- Do not apply on frozen or wet surfaces or through standing water.
- Prolonged exposure to direct sunlight can cause discoloring.
- Avoid application below 5°C and above 40°C.
STORAGE AND SHELF LIFE
15 months if stored in its original package, away from direct sunlight and moisture, between +10°C and +25°C.
PROPERTIES (Before Curing)
Parameter Value Basis Polyurethane Consistency Thixotropic Curing Mechanism Moisture Curing Density 1.22 +/- 0.03 g/ml Tack-free time 25-60 min. (23°C and 50% R.H) Curing Rate Min. 2.5 mm/day (23°C and 50% R.H) Sagging 0 mm (EN ISO 7390) Temperature Resistance -40°C to +90°C Application Temperature +10°C to +40°C
PROPERTIES (After Curing - After 28 Days)
| Parameter | Value |
|---|---|
| Hardness Shore A | 30-35 (ASTM C661) |
| Paintability | Yes * |
| Elastic Recovery | ≥ 70% (ISO 7389) |
| Elongation at break (Glass-Glass) | ≥ 100% (ISO 8339) |
| E100 Modulus (23°C) | 0.35-0.40 N/mm2 (ISO 8339) |
| E100 Modulus (-20°C) | ≤ 0.65 N/mm2 (ISO 8339) |
| Elongation at break (Dumble Test) | ≥ 600% (ASTM D412) |
| Tensile Strength | 1.6-2.1 N/mm2 (ASTM D412) |
PRODUCT PACKAGING
Product Type Volume Package Quantity White/Black/Grey (Cartridge) 310 ml 12 White/Black/Grey (Sausage) 600 ml 12
For high-strength surfaces that combine aesthetics,
