Professional Resources — floor sanding

Common questions from floor sanding contractors and homeowners across Newcastle, the Hunter Valley and Central Coast. Answers are based on Bona product specifications and professional floor sanding practice in Australian conditions. Primers Do I always need a primer before a waterborne finish?On bare timber, yes. A primer manages absorption, helps control colour, locks grain, and gives the topcoat something to bond to. Skipping it on bare timber leads to uneven absorption, patchy finish and adhesion problems. What's the difference between Prime Classic UX and Prime Intense?Classic UX is for standard species — light, natural colouration. Prime Intense is for high-tannin...

Bona's oil and wax-based finishes offer a fundamentally different aesthetic to their waterborne polyurethane range — a more natural, matte appearance with a tactile feel that some clients strongly prefer. Understanding the difference between the two main options helps you recommend the right system. Bona Hard Wax Oil Bona Hard Wax Oil is a penetrating oil-wax finish — it soaks into the timber rather than forming a surface film. The result is a natural matte look with a soft, slightly tactile surface feel. It enhances the grain without adding the "coated" look of a polyurethane system. Key properties: Penetrating finish...

Coastal NSW conditions — high humidity, salt air, and temperature swings between seasons — create real challenges for waterborne floor finishing that don't apply in drier inland climates. Understanding how conditions affect your coating system saves call-backs and recoats. Why Humidity Matters for Waterborne Finishes Waterborne coatings dry through water evaporation. High humidity slows this process — the air is already carrying moisture, so the coating releases its water more slowly. The practical effects: Extended dry times — recoat windows stretch in humid conditions. What cures in 3 hours at 50% RH may take 5+ hours at 80% RH. Milky...

Primer selection is one of the most consequential decisions in a floor finishing system — more so than many contractors expect. The primer affects colour, tannin control, adhesion, and the final appearance of the whole system. Here's how to choose between Bona's three main primers. Bona Prime Classic UX Bona Prime Classic UX is the standard primer for most floor finishing work on common Australian timber species. It produces a light, natural colouration that preserves the timber's appearance without adding warmth or cooling it significantly. Key specs: Water-based, EMICODE EC1, non-yellowing, dry time approximately 1–2 hours at 20°C. Use it...

Quick answer: For most Australian hardwoods, use P36–P40 to strip old finish, P60 to remove deep scratches, P80 to smooth, and P100 as your final pass before coating. For softwood (pine), add P120 at the end. Never skip more than one grit. Professional Floor Sanding Grit Sequence Guide for Australian HardwoodsComplete grit progression guide for Spotted Gum, Blackbutt, Ironbark, Brush Box & Tallowwood. Learn the professional approach to progressive sanding with Bona abrasive systems for optimal results.Understanding Grit Progression PrinciplesProfessional floor sanding follows a systematic approach where each grit removes the scratches from the previous grit while creating progressively finer...