Private Label Cements | Roofing & Construction Cement Solutions

At New Castle Building Products, our private label roofing cements are trusted by contractors and construction professionals for their superior performance, durability, and weather resistance. Engineered to meet industry standards, our line of flashing cements is ideal for roof repairs, waterproofing, and sealing applications.

NC#3 All Weather Flashing Cement

Our high-quality cement that is formulated to a heavy smooth trowel consistency. NC #3 Flashing Cement is a soft, pliable material that gradually hardens to a coating that is elastic, durable and resistant to water. Ideal for flashing details and a variety of waterproofing repairs such as roof penetrations and moving joints. Meets or exceeds the requirements of ASTM 4586 Type I.
View Data Sheet
View SDS

NC#4 Rubberized Flashing Cement

Our high-grade rubberized flashing cement manufactured using quality chemical ingredients. NC #4 Rubberized Flashing Cement has a smooth trowelable consistency, excellent adhesion to wet surfaces, and great flexibility. Ideal for flashing details and a variety of waterproofing repairs such as roof penetrations and moving joints. Meets or exceeds the requirements of ASTM 4586 Type I and ASTM D-3409, NYFD C. OF A. NO 4848.
View Data Sheet
View SDS

NC#8 Modified Flashing Cement (Trowel Grade)

NC #8 Modified Flashing Cement is an SBS polymer modified asphalt flashing cement. This product is used on SBS Systems and provides excellent adhesion, as well as a flexible bond on laps and terminations. Meets or exceeds the requirements of ASTM 4586 Type I.
View Data Sheet
View SDS