Gunther Extra Build Mastic – 1 Gallon (Black)

Gunther Extra Build Mastic is a high-performance adhesive specifically engineered for applications requiring extra build-out. With the ability to build out up to 2-1/2 inches, it’s ideal for uneven surfaces and large gaps. This mastic offers versatile bonding to a wide range of substrates, making it suitable for both residential and commercial projects. It delivers 25% strength in just 24 hours and reaches full cure within 30 days, ensuring a reliable and durable hold. Available in convenient cartridges and economical gallon pails, it provides flexibility and efficiency for installers.

• Exceptional Build-Out: Allows Build-Out Up to 2-1/2"

• Versatile Bonding: Adheres to Wide Variety of Substrates 

• Fast and Strong: Achieves 25% Strength in 24 Hours and 100% Maximum Strength within 30 Days

• Convenient Packaging: Available in Easy-to Use Cartridges and Economical Gallons Pails 

• Case Quantity: 4 Gallons