Bij het produceren van polyurethaanproducten is het noodzakelijk om lossingsmiddelen te gebruiken. Of het nu gaat om PU met hoge veerkracht, PU met lage veerkracht, PU zelfonthuidend en andere soorten producten, ze zijn allemaal sterk afhankelijk van lossingsmiddelen. Het juiste gebruik van lossingsmiddelen heeft een directe link met de uiteindelijke kwaliteit van het product. Het is niet alleen nodig om het lossingsmiddel op een technisch verantwoorde manier toe te passen, maar het is ook noodzakelijk om het juiste lossingsmiddel te kiezen. Vandaag introduceren we 10 veelvoorkomende soorten losmiddelen, wat zijn de kenmerken en hoe u ze kunt bewaren.
Zacht schuimlosmiddel
Productbeschrijving
PU soft foam release agent is compounded by various waxes, with high solid content, mainly used for car cushions, headrest backrests, toys, sound insulation cushions, blankets, mattresses, and other products, especially for 30-55 ℃ cold-ripening foam.
Product Index
| Appearance | Milky white liquid |
| Scent | No special odor |
| Density | Approx. 0.82 g/cm3 |
| Active substance content | 30% |
| Viscosity | Approx. 10-20cSt |
| Applicable temperature | 10℃-180℃ |
| PH value | Neutral |
Productfuncties
- No harmful solvents and heavy metal substances, such as alkyl phenols, amines, plasticizers, mercury, cadmium, and lead, reduce the evaporation of harmful gases during use.
- A very slight build-up of release agents in the mold.
- Superior mold release performance at low and medium temperatures, with the best effect when used at 30-60℃.
- Using can be brushed, rubbed, sprayed, and other ways to operate.
- Before use can be diluted with solvent 1:13-15 use, according to the size of the gun diameter and reasonable choice of dilution times.
Storage and handling methods
Keep containers tightly sealed to prevent solvent evaporation, and store ingredients at 20-38°C to ensure the best results and avoid freezing.
Hard Foam Release Agent
Productbeschrijving
PU hard foam release agent is an oil-based environmentally friendly release agent, mainly used for insulation materials, decorative materials, car crash parts, furniture, model hangers, plastic substitutes, and more.
Product Index
| Appearance | Milky white liquid |
| Scent | Very slight odor, environmentally friendly |
| Relatief soortelijk gewicht (25℃) | Ongeveer. 0,78 |
| Bedrijfstemperatuur | 20℃-180℃ |
| Viscosity | 32 |
| PH value | 7-7,5 |
Productfuncties
- Uiterst eenvoudig in gebruik en efficiënte ontvormingsprestaties.
- De uitstekende oppervlakteglans van het te ontvormen object.
- Uitstekende hechting aan het matrijsoppervlak en uitstekende thermische stabiliteit, zodat de matrijs in wezen vrij is van verstoppingen en gemakkelijk schoon te maken is.
Storage and handling methods
Bewaren in de originele luchtdichte verpakking bij -20℃~+50℃ en moet vóór gebruik goed worden geroerd.
Imitatiehoutlosmiddel
Productbeschrijving
PU imitation wood release agent is a kind of ready-to-use PU hard foam, semi-hard foam special release agent, mainly used for PU imitation wood furniture, PU flower pots, PU photo frames, and PU Roman columns. The release agent is effective and the product is very easy to clean and convenient to paint. Polyurethane molding manufacturing applicable external type release agent, mainly used for hard foam and semi-hard foam production lines. Applicable with mold temperature 30~80℃.
Product Index
| Appearance | Milky white liquid |
| Scent | No special odor |
| Density | 0.8 |
| Applicable temperature | 30℃-80℃ |
| Viscosity | 35 |
| Flash point | ＞120℃ |
| PH value | Neutral |
Productfuncties
- Extremely easy to use and efficient release properties.
- Excellent adhesion, and excellent thermal stability.
Storage and handling methods
Keep containers tightly sealed to prevent solvent evaporation, and store ingredients at 20-38°C to ensure the best results and avoid freezing.
Water-Based Mold Release Agent
Productbeschrijving
PU water-based mold release agent is non-toxic, environmentally friendly, has good dispersion, is easy to spray, has good mold release performance, and good weather ability, no corrosion on the mold surface, no dirt whitening phenomenon, easy to clean, and other advantages.
Product Index
| Appearance | Milky white liquid |
| Scent | No irritating odor |
| Density | 0.97 |
| Viscosity | 38 |
| PH value | Neutral |
| Bedrijfstemperatuur | 0℃-250℃ |
| Demoulding force | N/100cm²≤40 |
Productfuncties
- Non-toxic, environmental protection, harmless to the human body.
- Excellent lower sole-release molding.
- Good post-processing, adhesion, and playability.
Storage and handling methods
Stored in original airtight containers at 0℃~35℃.
High Resilience Mold Release Agent
Productbeschrijving
PU high resilience release agent is compounded by a variety of waxes, and high solid content, mainly used for car cushions, headrests, toys, and other PU resilient product parts, especially suitable for 30-55 ℃ cold-ripening foam.
Product Index
| Appearance | Milky white liquid |
| Scent | No special odor |
| Density | Approx. 0.82 g/cm3 |
| Solid content | 30% |
| Viscosity | Approx. 10-20cSt |
| PH value | 7 |
| Bedrijfstemperatuur | 10℃-180℃ |
Productfuncties
- No harmful solvents and heavy metal substances, such as alkyl phenols, amines, plasticizers, mercury, cadmium, and lead, reduce the evaporation of harmful gases during use.
- The very slight build-up of release agent in the mold.
- Superior mold release performance at low and medium temperatures, with the best effect when used at 30-60℃.
- It can be operated by brushing, rubbing, spraying, and so on. when used.
- Can be used solvent dilution 1:13-15 before use, according to the size of the gun aperture and reasonable choice of dilution times.
Storage and handling methods
Stored in original airtight containers at 2℃~30℃.
Slow Rebound Mold Release Agent
Productbeschrijving
PU slow rebound release agent is a series of highly efficient waxing PU products release agents produced by a special process. It has good leveling and adhesion on the surface of the hot mold, good film-forming performance, is easy to use, good release effect, remarkable work efficiency, and economic efficiency. The slow rebound release agent can be used for slow rebound sponges, such as memory sponges, and slow rebound pillow mold releases.
Product Index
| Appearance | Milky white sticky object |
| Scent | No special odor |
| Density | 0.72±0.01g/ml at 500℃ |
| Solid content | ＞16.5%(Drying at 1400℃ for 35 minutes at constant temperature) |
| Viscosity | The viscosity of 10±0.5 sec (diluted 10 times) |
| Grain size | <5um |
| PH value | Neutral |
Productfuncties
- Resistant to chemical leaching, heat, abrasion, and stretching.
- Good stripping continuity and no contamination of the mold.
Storage and handling methods
Keep the container tightly sealed to prevent solvent evaporation, and store the ingredients at 20-38°C to ensure the best results and avoid freezing. When used correctly, this product has a low procedural hazard. Shelf life is about 12 months.
Insulation Board Release Agent
Productbeschrijving
The main component of PU insulation board mold release agent is polydimethylsiloxane, which has excellent thermal and chemical stability, excellent effect of mold release and isolation, no corrosion of mold, no residual decomposition material on the surface of the mold, smooth and beautiful appearance of products, does not affect the adhesion and paint force of products, and does not pollute the mold. Suitable for: polyurethane insulation board, cold storage board, various polyurethane hard foam products, anti-wood hard foam products, toys, handicraft products of mold release.
Product Index
| Appearance | Colorless or light yellow transparent liquid |
| Scent | No special odor |
| Density | 0.82-0.85 |
| Applicable temperature | 0℃-200℃ |
| Viscosity | 100–200（mPa.s／25℃） |
| Flash Point | ＞250℃ |
| Diluent | Aromatische, alifatische en gechloreerde koolwaterstoffen, petroleumoplosmiddelen |
Productfuncties
- Uitstekende thermische en chemische stabiliteit.
- Uitstekend vorm- en isolatie-effect, geen corrosie van mallen.
- Geen achtergebleven afbraakmateriaal op het matrijsoppervlak en het gladde en mooie uiterlijk van de producten hebben geen invloed op de hechting en verfkracht van producten en vervuilen de matrijs niet.
Storage and handling methods
Bij afgesloten opslag vereist de temperatuur van het magazijn meer dan 0℃, minder dan 40℃. Bij gesloten opslag hebben de producten een houdbaarheid van 12 maanden vanaf de productiedatum en kunnen producten na de houdbaarheidsdatum verder worden gebruikt als ze na toepassingstests aan de normen voldoen.
Elastomeer vormlosmiddel
Productbeschrijving
The main component of PU elastomer mold release agent is the mixture of silicone and Teflon, which has excellent thermal and chemical stability, excellent mold release and isolation effect, no corrosion of the mold, no residual decomposition material on the surface of the mold, smooth and beautiful appearance of the products, does not affect the adhesion of the products and the force of the paint and does not pollute the mold. Mainly used in polyurethane elastomer products, PU rubber rollers, and PU seals.
Product Index
| Appearance | Colorless or light yellow transparent liquid |
| Scent | No special odor |
| Density | 0.98 |
| Applicable temperature | 0℃-200℃ |
| Viscosity | 100–200（mPa.s／25℃） |
| Flash Point | ＞250℃ |
| Diluent | Aromatische, alifatische en gechloreerde koolwaterstoffen, petroleumoplosmiddelen |
Productfuncties
- Uitstekende thermische en chemische stabiliteit.
- Uitstekend vorm- en isolatie-effect, geen corrosie van mallen.
- Geen achtergebleven afbraakmateriaal op het matrijsoppervlak en het gladde en mooie uiterlijk van de producten hebben geen invloed op de hechting en verfkracht van producten en vervuilen de matrijs niet.
Storage and handling methods
In sealed storage, the temperature of the warehouse requires more than 0℃, less than 40℃. In the case of sealed storage, the shelf life of the product is 12 months from the date of production, and the product beyond the shelf life can continue to be used if it meets the standard by application test.
Self-Crusting Release Agent
Productbeschrijving
PU self-crusting oil-based release agent emulsion is a non-ionic emulsion of fluorine-modified methyl siloxane resin. It is mainly used for automotive self-crusting matte products, automotive interior dashboards, armrests, steering wheels, and more.
Product Index
| Appearance | Milky white liquid |
| Scent | No special odor |
| Density | 0.8 |
| Solid content | 20% |
| Type of emulsifier | Nonionic |
| PH value | 7 |
| Diluent | White power oil/gasoline |
Productfuncties
- Environmentally friendly and healthy, with no strong odor when the high temperature.
- Excellent demolding performance, no accumulation in the mold.
- Smooth product crust, does not affect post-processing.
- High dilution ratio, good economic performance.
Storage and handling methods
Store in the original airtight container at 2℃~30℃, and must be stirred well before use.
Dual-Density Mold Release Agent
Productbeschrijving
PU double-density release agent, widely used for releasing polyurethane from double-density shoe soles, features a dry, matte surface that is easily detached from the mold. It also provides excellent adhesion between the two layers of polyurethane. Only a small amount is required for application, and only a minimal amount of residue is left in the mold.
Product Index
| Appearance | Clear liquid |
| Scent | No special odor |
| Density | 0.79 |
| Bedrijfstemperatuur | 0℃-250℃ |
| Viscosity | 26 |
| PH value | Neutral |
Productfuncties
- Non-toxic, environmental protection, harmless to the human body.
- Excellent demolding performance.
- The sole surface is smooth and complete.
- Easy to use and easy to operate.
- Good post-processability and cleanliness.
Storage and handling methods
Keep the container tightly sealed to prevent solvent evaporation and store the ingredients in the original drum in a dry cool manner to ensure the best results and avoid freezing. When used correctly, this product has a low procedural hazard. Shelf life is approximately 12 months.
This is the introduction of the release agent commonly used in the production of polyurethane products, follow us for more production advice.
Specialized Mold Release Agent Classification
Polyurethane mold release agents are mainly divided into two types: external and internal release agents.
Polyurethane External Release Agent
A layer of coating applied to the surface of the mold so that the product can be easily removed from the mold during the molding process is called an external release agent. There are three types of external mold release agents depending on how they are applied: durable, hydroxyl-coated, and multilayer composite.
Polyurethane Internal Release Agent
Het interne losmiddel wordt aan de PU-formulering toegevoegd en migreert tijdens elke vormsessie naar het grensvlak tussen het schuim en de mal om het loslaateffect te bereiken. De vereisten voor het interne losmiddel zijn: gemakkelijk te dispergeren in het harssysteem om een stabiele dispersie te worden, de oorspronkelijke reactiviteit en fysische eigenschappen niet te veranderen, het kiemvormingseffect niet te beïnvloeden, om de poreuze structuur of schuimstabiliteit niet te veranderen, hebben geen invloed op de vormbaarheid van de overschilderbaarheid.
Conclusie
Dit artikel richt zich op 10 veelgebruikte polyurethaan losmiddelen, die elk verschillende kenmerken en toepassingen hebben. Wij zijn een professionele fabrikant van polyurethaanproducten en ondersteunen groothandel en maatwerk. Iedereen die geïnteresseerd is, kan te allen tijde contact met ons opnemen.
