Himtrust SP-41/7
Himtrust Polyester 41/7 is used for rigid polyurethane foam-spraying and filling components production (shells, pre-insulated pipes, thermal insulation boards).
Product description
Homogeneous viscous liquid of light brown color.
Physical and mechanical parameters
| Parameter | Value |
|---|---|
| Hydroxyl number | 350–420 mg KOH/g |
| Acid number | 0.5–1.0 mg KOH/g |
| Dynamic viscosity at 25 ºC | 600–1200 MPa*s |
| Content of water | 0.05–0.1 % |
Composition
Polyether based on phthalic anhydride with reduced viscosity.
Health effects and precautions
Polyesters belong to the fourth hazard class (low-hazard substances). Although when working with complex polyesters no harmful substances are released, but it is recommended to use PPE (workwear, safety glasses, cotton gloves) to avoid any skin contact. In case of skin contact, wash the affected area with warm water and soap.
Storage recommendations
Storage period is 12 months in a covered warehouse at temperature from -40 °C to +40 °C. The product can also be stored under a canopy or on a planned site, which is protected from precipitation, pollutants and mechanical damage.
Other products
Himtrust LapS 48-40
For foam rubber production for furniture
Hydroxyl number mg KOH/g:
27-32
Viscosity, dynamic at 25°C:
4500 - 6000
Water mass fraction (%):
0,1
Himtrust SP-160
For the production of two-component polyurethane floors and primers.
Hydroxyl number mg KOH/g:
150-180
Viscosity, dynamic at 25°C:
2500-4000
Himtrust SP-90/2
For the production of polyurethane foams for block periodic filling and continuous production of panels.
Hydroxyl number mg KOH/g:
240-250
Viscosity, dynamic at 25°C:
2500-4000
Himtrust SP-81/3
For the production of rigid foams to improve fire characteristics of the finished polyurethane foam.
Hydroxyl number mg KOH/g:
240-270
Viscosity, dynamic at 25°C:
2500-3500