Delivery: IN STOCK. Next Day Delivery (if ordered before 13:00) Key Features: Size: 240mm (9") Use: De-gassing polyurethane coats, primers, and self-levelling products on large flat surfaces Guarantee: BBA Certified, 25 Year Warranty Description: OWL Waterproofing’s LAVA 20 Spiked Application Roller. Refine your polyurethane coats and self-levelling applications with ease. The uniformly spaced spikes break surface tension, release trapped air, and help coatings settle smoothly before curing. Built on a pole-compatible frame with a solvent-resistant red handle. Fewer defects: Spikes vent pinholes and trapped air for cleaner results Efficient coverage: The 9″ width keeps wet edges workable across wide areas Built to last: Solvent-resistant materials tolerate routine cleaning Downloads & Data Sheets: System Brochure Application Guide BBA Certificate