Polyisocyanurate (PIR)-based insulation materials are among the most advanced solutions in the market, known for thermal resistance and fire performance. However, the actual performance of PIR panels, pipe insulations, or sandwich elements depends not only on the formulation but also on critical production details—especially the often overlooked yet essential primer adhesive.
Reactivity and Surface Bonding in PIR Systems
PIR foams operate with fast reaction speeds and high processing temperatures. In these systems:
- Inadequate bonding leads to delamination risks
- Poor adhesion to surfaces reduces thermal insulation and mechanical strength
- The overall product lifespan is significantly reduced
This is where the primer adhesive acts as a chemical bridge between the foam and the substrate.
Primer: Not Just a Coating, But a Connector
When applied to surfaces, primer:
- Enhances adhesion strength
- Creates chemically compatible bonds with reactive foams
- Prevents surface issues caused by moisture, grease, or dust
Pluskim’s primer solutions are specifically optimized for different surfaces like aluminum foil, kraft paper, galvanized sheets, and PU-coated panels.
Choosing the Right Primer = Eliminating Delamination
For PIR products to remain durable, structurally stable, and resistant to stress, manufacturers must ensure:
- Primer is compatible with the foam formulation
- Application temperature and coating thickness are optimized
- Viscosity and drying times are consistent in automated lines
Pluskim primers are engineered to meet these parameters, reducing production defects and ensuring product uniformity.
In PIR production, a great foam is not enough. What matters just as much is how well that foam adheres to the surface. A high-quality primer is a silent but essential factor. With Pluskim’s advanced primer systems, ensure strong adhesion, long-term performance, and manufacturing efficiency.
📩 For technical data and support, visit: www.pluskim.com