To facilitate the separation of the part from the mold during the production of products by the pouring method, release agents are required. Lubricants speed up the manufacturing process and reduce scrap rates.
NPF Adgeziv ( https://adhesiv.ru/) has developed silicone compounds for the production of products from integral, rigid and semi-rigid polyurethane and polyurethane foams. Materials are used to separate products from forms in production:
- Accessories for upholstered furniture.
- Handrails, armrests, headrests.
- Transport and furniture seat cushions.
- Other products.
Silicone lubricants from the company "Adhesive" are universal formulations, they can be used for production of any type and volume. Let's consider the advantages and features of the materials.
Features of silicone lubricants
Materials based on silicones https://adhesiv.ru/catalog /smazki /smazki-silikonovye / are supplied in concentrated formulations. Lubricants can be diluted with chlorine-containing or hydrocarbon solvents: Nefras C2 80/120 (Kalosha gasoline, BR-2), white spirit. Recommended proportions:
- 1: 8 for fine and rigid polyurethane foams, polyurethane elastomers.
- 1:10 for integral and semi-rigid polyurethane foams.
Release agents can be used without dilution. With the use of aluminum, steel, fiberglass molds and concentrated lubricant, multiple removals can be achieved in one treatment.
When using damaged molds, a silicone compound is applied, the mold is heated, the material is thoroughly rubbed in, then re-coated with lubricant.
The polymerization time of products from PU systems depends on the temperature. ... To accelerate the polymerization of products, molds with a liquid mass can be heated, lubricants retain their properties at temperatures from 20-100 ° C, which significantly speeds up production.
Silicone compounds can be applied manually or by machine using a special spray gun, brush. Lubricants are suitable for piece, batch and mass production.
Materials are low-flammable and low-toxic substances, spraying and applying grease should be done away from sources of open flames or sparks. Glasses, long-sleeved overalls, rubber gloves are required.
The use of silicone lubricants produced by NPF "Adgeziv" allows you to increase productivity and reduce rejects in the manufacture of products from polyurethane and polyurethane foam systems, as well as products from other materials.