Technical details
|
Cream time, s |
20-30 |
|
Gelation time, s |
85-95 |
|
Free rise density, kg/m3 |
30-35 |
|
A:B ratio |
100:130 |
|
Scope of application |
Thermal insulation panels production |
System Description
Two-component system for the production of rigid polyurethane foam by injecting the "RPC P-35 (25)" brand.
The polyol component (component A) of the RPC P-35 (25) trademark contains polyesters, stabilizers, catalysts and blowing agents.
Isocyanate component (component B) - polymeric diphenylmethane diisocyanate grades: Lupranat M 20 S, Millionate - MR 200, Wannate - PM 200, Desmodur VKS 20 F, Ongronat 2100, etc.
Scope of application
RPC P-35 (25) is used for the production of sandwich panels, thermal insulating panels, SIP panels and other thermal insulating products in a periodic manner, used in the construction of buildings, pavilions, industrial low-temperature freezers, refrigerators.
Physicochemical indicators of components A and B
|
Polyol component (RPC P-35 (25) (A)) |
Isocyanate component (Component B) |
|
|
Density at 20 °C |
1.05 - 1.15 g/cm3 |
1.22 - 1.24 g/cm3 |
|
Viscosity at 20 °C |
150 - 400 mPa·s |
150 - 250 mPa·s |
|
Warranty storage period: |
12 months |
|
Beaker foaming laboratory parameters
|
Parameter name |
Value |
|
Cream time, s |
20 — 30 |
|
Gelation time, s |
85 — 95 |
|
Free rise density with free foaming, kg/m3 |
30 — 35 |
|
Component temperature, °C |
22 — 24 |
|
The ratio of components A to B, by weight |
100 / 130 |
Preparatory measures before starting work
- Heat component A to +20 - 25 °C;
- Heat component B to +20 - 25 °C;
- Stir component A with a paddle mixer or in the tank of the filling machine for 30 minutes at 150 - 500 rpm;
- The isocyanate component (component B) does not require stirring if it has been stored at a temperature not lower than + 15 °C. If the isocyanate component was stored at temperatures below + 15 °C, then slowly heat it up to a temperature not higher than +50 °C;
- The recommended mold temperature is +30 °C - 45 °C.
Precautions and health effects
When processing, it is necessary to take into account safety measures according to TU.
Physical and mechanical properties
|
Parameters |
Value |
Единица измерения | Метод испытания |
|
Density (in the core) |
45 — 50 |
kg/m3 |
GOST 17177 |
|
Compressive strength at 10% deformation |
0,25 — 0,28 |
MPa |
GOST 17177 |
|
Water absorption for 7 days |
Не более 5 |
% by volume |
GOST 20869 |
|
Thermal conductivity at an average temperature of 50 °C |
0,022 — 0,026 |
W/m °C |
GOST 7076 |
Shelf life
The shelf life of component A is 12 months without opening the drums.
Rights
The data provided in this technical information is based on our current technical knowledge and experience and is believed to be accurate at the time of publication. Nothing in this publication should be construed as a warranty, either expressed or implied. Due to the abundance of factors that can influence the recycling and use of our materials, they do not excuse the recycler from its own testing and experimentation. In all circumstances, it is the user's responsibility to correctly determine the applicability of such information or of the product itself for a specific purpose of the user.
| A to B ratio | 100:130 |
| Apparent density | 30-35 |
| Gel time | 85-95 |
| Start time | 20-30 |