Lighthouse Adhesives

B4 GLU Sub-floor Primer / pH Reducer

A fast-drying, solvent-free adhesive that reduces concrete surface pH and porosity, enhancing bond performance for quick project turnarounds.
B4 GLU - 4 gal

B4 GLU is engineered for reducing concrete surface pH, surface porosity and to enhance adhesive bond performance. B4 GLU is solvent free and dries quickly. Resulting in a quick return to service for remodel and new construction. 


Download our Tech Data Sheets and Safety Data Sheets for detailed product information and safety guidelines.


pH Range: 7-12

Relative Humidity (RH): Up to 90%

Dry Time: 20 – 60 minutes

Adhesive Application: Immediate When Dry

Available in 4 gallon buckets.

Ensure quick, reliable results with Lighthouse Adhesives’s B4 GLU—experience the benefits of reduced surface pH and enhanced bond performance for your next project. Try B4 GLU today!

For more information, call 1-844-GLURU-4U or click the button below to contact our technical department.

B4 GLU - 4 gal