Polyurethane Release Agent

Polyurethane release agent, also called a mold release agent or release coating, is a chemical used to prevent other materials from sticking to surfaces. In the polyurethane industry, release agents play a vital role.

Polyurethane is produced via a chemical reaction between an isocyanate and a polyol. This reaction results in the cross-linking and expanding of the polymer, which then sets or cures into its final shape.

During production, the liquid polyurethane mixture is poured into a mold. Without a release agent, the cured polyurethane would bond very strongly to the surfaces of the mold due to adhesion and chemical bonding between the plastic polymer and the mold material.

This is where release agents become important. They are applied to molds prior to pouring the polyurethane reactants. Typically, polyurethane molds are treated with silicone- or Teflon-based release agents.

The polyurethane release agent forms a thin, slick film on the mold that prevents direct contact between the curing polyurethane polymer and the mold material. This allows for easy release of the finished part from the mold once cured.

Proper use of high-performance release agents is crucial in polyurethane manufacturing. It enables efficient demolding, reduces production waste from damaged parts, and improves productivity and cost-effectiveness. Release agents are therefore a critical part of the polyurethane production process.

*The mold layer is clean, clean, and can be closely bonded to the surface of the mold.

*Strong mold release ability and good surface gloss

*Ideally, multiple release cycles can be used at a time for spraying

*Improve mold cleanliness and extend mold washing cycle

*High dilution, cost-effective

*Solvent-based mold Polyurethane release agent

*Active ingredient: Polymer resin

* In order to obtain the best release effect, the surface of the mold should be cleaned and dried first.

Sandblasting, dry ice cleaning or mold washing water cleaning methods can be used to clean the mold.

*This product is a concentrated solution and needs to be diluted before use. The recommended dilution

ratio is 10-15 times.

* Stir or shake evenly before using the mold release agent. It is recommended that the mold release agent

storage tank be equipped with an automatic stirring device.

* For the cleaned mold, it needs to be sprayed 2-3 times continuously, with an interval of 3-5 minutes

each time; after the last mold release agent is sprayed, you need to wait for the mold release agent to dry

completely before normal production.

* When using spraying equipment, spray the mold release agent at a distance of 10-20 cm from the

surface of the mold.The mold release agent is suitable for a variety of processes, such as spraying, wiping,

and pouring, among which the spraying effect is better.

* Density @20°C [g/ml]：0.98

* Color：Colorless

* Shelf time：24 month

* Fire hazard: noncombustible not dangerous

* Appearance：Liquid

* For industrial use only.

* Storage: Keep the container sealed and stored in a well-ventilated place

5L, 20Land 200L.

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