Recommendations for processing:
The key conditions for the qualitative filling of a form with polyurethane foam are: compliance with the accuracy of dosing and temperature conditions of the PU-system components' processing regime; sufficient mass of the poured PU-system portion and proper preparation of the mold's working surface.
POLYSYSTEM 600(1000) PU-system is processed by (manually) pouring it into open or closed silicone rubber molds. Before pouring, molds are cleaned and, if necessary, lubricated with anti-adhesive grease, which ensures easy and quick extraction of finished products.
Optimal temperature of the mold working surface is (18 - 22) °C.
Before processing, the components are thermostated up to (18 - 22) °C.
A pre-weighted amount of Component A is added to the mixing tank. Then, a pre-weighed amount of Component B is quickly added to the same tank, and the mixture is stirred for 1-2 minutes until a homogeneous substance is obtained. The prepared mixture is then quickly poured into the mold; this minimizes the formation of air bubbles. The product curing time is 10 - 20 minutes (depending on the mold size and configuration).
Once the curing time is over, the product is removed from the mold and kept for 24 hours in a room with a temperature not lower than 18 °C - to ensure the final curing of polyurethane foam. Technical documentation for the equipment and the process of obtaining finished products are the guidelines for the PU-system processing.
TTNPU-006-2019 technical requirements. POLYSYSTEM 600(1000) polyurethane system.
Handling and storage
POLYSYSTEM 600(1000) Component A warranty period of storage is 6 months - when stored in a dry place in a hermetically sealed manufacturer's container at a temperature of (10 – 25) °C.
Component B warranty period and storage conditions - in accordance with the technical data provided by the manufacturer. The POLYSYSTEM 600(1000) PU-system technical requirements and Component B safety passport are the guidelines for the transportation, storage, handling and safety of these materials. These documents are updated periodically. Ask manufacturers and/or suppliers for updated versions of relevant documents before using the PU-system. When working with the above-mentioned materials, it is necessary to pay attention to personnel health, to compliance with safety and health regulations, as well as to environment safety.