Mô tả
VORAMER MS 7045 Polyol
PAPI™ 27 POLYMERIC MDI Isocyanate
Description VORAMER™ MS 7045 / PAPI™ 27 POLYMERIC MDI is a solvent free, two component polyurethane adhesive designed for the production of steel, aluminium, GRP or PVC faced sandwich panels with extruded or expanded polystyrene as in core insulation material.
This system has been especially developed for discontinuous panel production lines requiring an extended open time of 2 hours at 20°C.
It can be applied with low pressure, drip dispensing equipment or manually by spatula or roller.
Typical
Component
Properties
Units | VORAMER™ MS 7045 | PAPI™27 POLYMERIC MDI | ||
Polyol | Isocyanate | |||
Colour | Cream | Brown | ||
OH-number | mgKOH/g | 72 | ASTM D4274 | |
NCO content | % | 30.4-32.0 | ASTM D5155 | |
Viscosity brookfield,25°C | mPa.s | 17000 | 160-240 | ASTM D4889 |
RVTD6 V20 | ||||
Specific gravity, 20°C | g/cm3 | 1.61 | 1.23 | ISO 2811 |
These are typical values and should not be construed as specifications.
Recommended | Polyol component needs to be well homogenous before use. | ||
Process | Materials to be bonded should be clean, dry, free of dust, or grease. Adhesion performance | ||
Conditions | of the | polyurethane adhesive onto | the various materials to be assembled has to be tested . |
Units | Limits | ||
Mixing Ratio | pbw | 100 : 19 (Polyol : Isocyanate) | |
Mixing Ratio | pb vol. | 100 : 25 (Polyol : Isocyanate) | |
Component Temperature (1) | °C | 18 – 30 | |
1.Typical range | |||
Typical Reaction | |||
Characteristics (2) | |||
Units | Value | Method | |
Open Time at 20°C (3) | min | 120 | Lab method |
Curing time at 20°C (3) | hours | 7 | Lab method |
Pot life tecam (on 200g) | min | 60 | DOWM 10159 |
Viscosity (mixed) at 23°C | min | 5000 | ASTM D4878 |
RVTD5 V20 |
2.These are typical values and should not be construed as specifications.
3.Components and materials at 20°C. 150 g /m2 applied with a notched trowel and hardening under 20°C, 50% Rel.H.
Handling and
Storage
Units | VORAMER™ MS 7045 | PAPI™ 27 POLYMERIC MDI | |
Polyol | Isocyanate | ||
Storage temperature | °C | 15-25 | 15-25 |
Storage stability / Shelf life (4) | months | 6 | 6 |
- Stored in the original sealed drums in a dry place at the recommended temperature
Typical Polymer
Properties
Units | Limits | Test Method | |
Shore hardness | ShD | 70 | ISO 868 |
Tensile strength | MPa | 17 | ISO 527 |
Elongation at break | % | 11 | ISO 527 |
Tensile lap-shear strength | MPa | 12 | ISO 4587 |
These are typical values and should not be construed as specifications
Product
Stewardship
The Dow Chemical Company and its subsidiaries (“Dow”) has a fundamental concern for all who make, distribute, and use its products, and for the environment in which we live. This concern is the basis for our Product Stewardship philosophy by which we assess the safety, health, and environmental information on our products and then take appropriate steps to protect employee and public health and our environment. The success of our Product Stewardship program rests with each and every individual involved with Dow products ─ from the initial concept and research, to manufacture, use, sale, disposal, and recycle of each product.
Safety
Considerations
Safety Data Sheets (SDS) are available from The Dow Chemical Company. SDS are provided to help customers satisfy their own handling, safety and disposal needs and those that may be required by locally applicable health and safety regulations. SDS are updated regularly, therefore, please request and review the most current SDS before handling or using any product. These are available from the nearest Dow sales office.
Customer Notice | Dow strongly encourages its customers to review both their manufacturing processes and their |
applications of Dow products from the standpoint of human health and environmental quality to ensure | |
that Dow products are not used in ways for which they are not intended or tested, Dow personnel are | |
available to answer your questions and to provide reasonable technical support. Dow product literature, | |
including safety data sheets, should be consulted prior to use of Dow products. Current safety data | |
sheets are available from Dow. |
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