PD2000
Low free TDI monomer Polyurethane Prepolymer
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Product Description
PD2000 pre-polymer is a new, high performance, TDI based
polyurethane pre-polymer with a low free monomer content.
Uses
PD2000 can be used in various sealing and coating applications
both in one and two pack products, and is particularly suitable for
use in the manufacture of one component, moisture curable,
flexible, seamless membrane coatings. Other applications
include joint fillers, pipe coatings and binding for cork, rubber,
foam etc.
Storage, Handling And Personal Protection
The recommendations in our Safety Data Sheet for this product
must be followed at all times. More general information is
included in our publication “A Guide to the Safe Handling of
Polyurethane Chemicals”.
Characteristics
As supplied the product has the following typical characteristics:
-
| Appearance |
Straw Coloured Liquid |
| Viscosity mPa.s Max @ 25° C |
10,000 |
| Density @ 20°C |
1.045 |
| NCO Conten t% |
2.40 - 2.80 |
| Free Monomer (TDI)% |
< 1 |
| Solids Content % |
98 min |
| Flash Point ° C (Abel Closed Cup) |
> 100 |
| Boiling Point °C |
> 200 |
| VapourPressuremm Hg @ 25°C |
< 0.01 |
| Vapour Density (Air = 1) |
> 1 |
| Evaporation Rate(BuAc = 1) |
< 0.1 |
| Solubility |
Good in most common PU grade solvents* |
*Polyurethane grade solvents by definition must have a low content of active hydrogens, therefore
alcohols and amines etc are not suitable along with other solvents containing >0.05% water.
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