Himtrust SKS-40/141 (131)

Product description

Polyol (component A) is a transparent liquid from yellow to brown colors.

Isocyanate component (component B) - polymer diphenylmethanediisocyanate brands: "Lupranat M 20 S", "Millionate-MR 200", "Wannate-PM 200", "Desmodur VKS 20 F", "Suprasec 5005", "Cosmonate M-200", "Ongronate 2100" - transparent non-delaminating brown liquid.

Physical and mechanical parameters

Preparation and processing

1. To ensure the reactivity and viscosity of the components, before processing bring the temperature of the component A to (+20) °C- (+25) °C, component B (+20) °C- (+25) °C.
2. Mix the polyol component (component A) with a paddle for 10-15 minutes or roll the barrels in a horizontal position for 20-30 minutes.
3. The isocyanate component (component B) does not require any stirring if it was stored at a temperature not lower than +15°C. If the isocyanate component was stored at a temperature below +15°C, then slowly heat it to a temperature not higher than +50°C. Roll the barrel in a horizontal position to a homogeneous (homogeneous) state.
4. Set the temperature for the press mold to (+20) °C – (+ 30) °C.
5. The ambient temperature should be at least 20°C.

Processing requirement

Processing is carried out both on high-and low-pressure filling machines, and by manual filling.

1. Apply the separation compound on the entire working surface of the mold.
2. When filling, ratio of components the A to B by weight should be: 100: 150.
3. The density in the finished product should be not less than 60 kg / m³.
4. When filling the SPP "shell", calculate the required number of components according to the table.
5. With the shell of up to 108 mm in diameter, it is necessary to fill the density of 70-75 kg / m³. Because the amount of the component poured into small diameters is also small, it is not enough to heat the foam and give it the necessary amount of energy to fully fill the volume of the mold. If the shell diameter is more than 530, then the shells have to be produced in three and four sections. If the technology does not allow, then it is necessary to increase the density of the finished product to 70 kg / m³. Shell with large diameters, if it is two-sectioned, has a large arc and it needs to have large structural properties.
6. The temperature of component A and B is (+23) – (+25) °C.
7. Pour the mixture evenly into the mold.
8. Keep the product in the form for 15-20 minutes at a temperature of (+20)- (+30) °C.
9. Remove the product from the mold and store it for 48 hours at a temperature of (+20)- (+30) °C.

Health effects and precautions

When working with the system, use an insulating gas mask, a BKF or B gas mask, safety glasses with side pads, impermeable synthetic rubber gloves, clothing and shoes. The space where the work is carried out must be equipped with exhaust ventilation, workplaces – local suction and fire extinguishing means.

Storage recommendations

The warranty period of storage without opening the barrels is 12 months at 20°C from the date of manufacture.

Rights

Production of polyurethane materials and foamed polymeric materials is protected by patents and patent applications. This publication does not grant the right to carry out patented technological processes. The information and recommendations contained in this publication fully reflect Himtrust’s knowledge of the product to date. All the information is accurate to the best of our knowledge at the time of the publication. Nothing in this publication should be construed as a warranty. In all circumstances, it is the user’s responsibility to determine the applicability of such information or the product itself to the user's specific purpose

Pictures and Photos

Table

Table of the consumption of the components A and B per 1 linear meter of the PPU shell, depending on the diameter, thickness, and density of the shell: