ACRONAL® 4400 is an all-acrylic aqueous polymer dispersion designed primarily for zinc oxide-free formulations. It is optimized to offer a broad spectrum of enhanced performance benefits, such as improved adhesion across a wide range of roofing substrates, improved asphalt-bleed resistance, retention of film elasticity after weathering, and higher solar reflectivity due to enhanced dirt pick-up resistance. Further, ACRONAL 4400 delivers early rain resistance under even the most challenging weather conditions. ACRONAL 4400 was value engineered to provide environmental benefits in zinc-free roof coating formulations and comply with the performance parameters of ASTM D 6083 & California Title 24 protocols.

Roof coatings formulated with ACRONAL 4400 do not require the presence of zinc oxide to achieve robust mechanical properties; thus, they offer enhanced performance attributes such as improved adhesion across a broad range of roofing substrates while retaining the elasticity of the coating, even after considerable weathering. Traditional roof coatings lose a substantial portion of their elasticity after only 1000 hours of accelerated weathering, which makes them vulnerable to surface coating defects that shorten the life of the coating.

ACRONAL 4400 polymer is designed via a unique selection and combination of key monomers, along with an innovative self-cross-linking chemistry, to allow the formulator to achieve durable, enhanced performance coatings, under even the most challenging weather conditions.

Features & Benefits

• A balance of excellent tensile and elongation properties in the absence of zinc oxide
• Excellent retention of film elasticity upon extended weathering
• Excellent durability
• High solar reflectivity for reduced roof temperatures and energy efficiency
• Enhanced asphalt bleed resistance relative to conventional elastomeric polymers
• Enhanced adhesion to many roofing substrates
• Enhanced dirt pick-up resistance
• Excellent low-temperature flexibility
• APEO & Zinc Free

Properties