Polyurethane Adhesive

SIENOX provides actual vacuum defoaming test cases for polyurethane adhesives (PU adhesives), covering three typical working conditions: one-component sealants, two-component structural adhesives and highly filled elastomer casting materials, with a bubble removal rate of over 98%. Free sample testing is available.

Polyurethane systems are sensitive to moisture and bubbles. Moisture intrusion during stirring may trigger foaming reactions, and residual bubbles will compromise the compactness and bonding strength of the adhesive layer. SIENOX provides mixing and defoaming solutions tailored to the properties of polyurethane adhesives to effectively address the above pain points.

Polyurethane is a high‑performance polymer material. Owing to its excellent physical properties and chemical stability, it is widely used in many key fields of the national economy.