Why PVC Lubricants Matter in Foam Board Production?

PVC foam boards are widely used in construction, advertising, and interior design due to their lightweight, waterproof, and easy-to-process properties. However, producing high-quality foam boards requires precise control during extrusion and molding. This is where PVC lubricants play a crucial role:

Reducing Friction and Heat Generation

PVC lubricant is like a bridge between the machine and the plastic. It allows the plastic to flow smoothly in the machine without getting stuck or generating excessive heat due to friction. This makes the machine run more quickly, consumes less electricity, reduces wear and tear on the machine, and makes the production process smoother.

Improving Surface Finish

It also makes the surface of the foam board look particularly smooth and beautiful, without ugly streaks or uneven areas. Think about those beautiful billboards and decorative boards. The surface finish is very important, and lubricants help a lot.

Enhancing Foam Structure Stability

More importantly, it can keep the small bubble structure inside the foam board uniform and consistent, without collapsing here and bulging there. The board produced in this way is strong enough, has better insulation and sound insulation effects, and is more durable and long-lasting.

Preventing Sticking and Residue Buildup

With lubricants, the foam board is not easy to stick to the mold and machine. This saves the trouble of repeated cleaning and repairing the machine, and the machine can be turned on for longer. The production is fast and good, and the factory will of course save money and worry.

Choosing the Right PVC Lubricant is important, because not all lubricants are created equal. The best formulations for PVC foam boards include:

Internal lubricants (e.g., stearic acid, calcium stearate) for improving melt flow.

External lubricants (e.g., paraffin wax, PE wax) for reducing surface friction.

Composite lubricants for balanced processing and end-product performance.

At our company, we specialize in high-performance PVC lubricants tailored for foam board production. Our solutions enhance processability, reduce defects, and extend equipment lifespan—helping manufacturers achieve higher yields and better-quality products.