PU540 Sealant

PU540 is a medium-modulus polyurethane sealant with balanced rigidity and flexibility. Between PU530 high elasticity and PU550 high modulus, it adapts to minor structural deformation without cracking,

Excellent flexibility, tensile resistance and vibration resistance. It relieves structural stress caused by thermal expansion and contraction, ensuring long-term crack-proof and waterproof performanc

It provides strong and stable adhesion to concrete, stone, asphalt, aluminum, steel, PVC and wood. Primer-free construction is available for most dense substrates to save time and labor cost.

Dense cured structure delivers excellent waterproof and anti-seepage performance, effectively preventing water and moisture penetration for exterior walls, roofs, basements and pipe joints.

Fully cured sealant is paintable with all kinds of coatings. It blends perfectly with the base surface to realize invisible and neat joint finishing for decoration and engineering projects.

Great UV resistance, temperature resistance and chemical corrosion resistance. It resists yellowing, chalking and cracking under all-weather conditions, ensuring stable indoor and outdoor long-term se

One-component moisture-curing formula, ready to use without mixing. Good thixotropy and non-sagging performance suit both manual and mechanical construction for efficient and clean operation.

Solvent-free, low odor and low VOC, eco-friendly and safe for home, commercial and engineering construction.