Composite industry cleaners

However, during the manufacturing process, UPRs can leave behind residues and contaminants that need to be effectively cleaned to ensure high-quality composite products.

Cleaning agents play a crucial role in this regard. The cleaning process for UPRs involves several steps: First, the surface is inspected to identify the type and extent of contamination. Then, the appropriate cleaning agent is wiped or sprayed on the surface using a clean cloth or a brush.

Stubborn or heavy contaminants may require agitation or soaking. Solvent-based cleaners are commonly used due to their ability to dissolve and remove various types of contaminants effectively. Common solvents used include acetone, and methyl ethyl ketone (MEK). These solvents have excellent solvency power, but they are highly flammable and pose a risk for the operators by inhalation.

RESIN CLEANER A has positioned itself as a valuable alternative to acetone in the UPR industry. The flash point is >100ͦC, the evaporation loss in minimal and the product has no CLP labelling.

When manufacturing polyurethane foam products, molds are used to shape and form the foam.

After the foam has cured and solidified, it is necessary to clean the molds effectively to maintain product quality and ensure smooth production processes. Cleaning polyurethane foam from molds can be a challenging task due to the unique properties of the foam. Polyurethane foam is known for its high expansion and adherence to surfaces, making it difficult to remove from molds.

Several types of cleaning agents are commonly used for cleaning polyurethane foam from molds. These include solvent-based cleaners, and mechanical cleaning methods. Solvents such as NMP, NEP, DMF, and gamma-butyro lactone (GBL) are often used to dissolve and remove uncured or partially cured polyurethane foam. However, also in this case the solvents pose several risks for the operators, the environment, and process safety. Similar solvents are applied for cleaning of polyurethan resins such as polyurethan adhesives. 

RESIN CLEANER PU 21 and RESIN CLEANER PU30 are extremely efficient cleaning agents for polyurethane foam with a flash point >60ͦC, they have less CLP labelling the traditionally used solvents, and they have lower evaporation loss.

For non-cured or semi-cured polyurethane adhesives (for example for use as flushing agents for pray nozzles), RESIN CLEANER A is successfully applied as flushing agent.