Bostik MAX 285 Flooring Adhesive

Bostik MAX 285 is a one-component SMP (silyl-modified polymer) wood flooring adhesive for gluing solid timber, engineered timber, parquetry and bamboo flooring to concrete, screed, terrazzo, tiles, plywood and timber subfloors. It is sold in an 18 kg pail at Greenhill Timbers, Thomastown.

It needs no mixing, contains no water, solvent or isocyanate, and cures to a tough rubber that stays elastic, so the bond moves with the floor as humidity and temperature change. Bostik rates it for underfloor heating and lists noise reduction and moisture control among its features.

Technical data

• Base: silyl-modified polymer (SMP), moisture curing
• Colour: beige
• Open time and tack-free time: about 60 minutes at 23°C / 47% RH
• Cure rate: 2 to 3 mm per 24 hours at 23°C / 47% RH
• Application temperature: +5°C to +40°C
• Service temperature once cured: -40°C to +90°C
• Tensile strength: about 2.4 MPa; elongation at break: about 220%
• Solvent and isocyanate content: 0%
• Pack: 18 kg pail (3 x 6 kg bags)
• Shelf life: 12 months unopened, stored dry at 0°C to 30°C

Coverage

Bostik's spread rates are 600 to 800 g/m² with a B3 trowel, 700 to 900 g/m² with a B6 and 800 to 1,000 g/m² with a B11. That works out at roughly 18 to 30 m² per 18 kg pail depending on the trowel and the subfloor. Bostik asks for at least 80% adhesive contact under engineered boards, at least 95% under solid timber, and 100% where the adhesive is relied on for moisture resistance.

Before you lay

The subfloor must be sound, clean and flat to within 3 mm over 3 metres. Concrete should be slightly textured and absorbent, not smooth and shiny: water droplets should start soaking in within a minute. Wear gloves and safety glasses while spreading.

Goes with: Bostik Ultraseal vapour barrier, engineered timber flooring, solid timber flooring and flooring accessories.

Pick up from 170 Settlement Road, Thomastown. Stocked lines are usually ready the same day. Delivery across Melbourne and regional Victoria is quoted on the order; call (03) 9465 9875 for a price on your suburb.

All prices include GST. Flooring is priced per square metre, decking and dressed timber per lineal metre, framing and posts per length. Trade accounts get trade pricing on the site and at the counter: apply here.

Bring your room or deck sizes in, or call (03) 9465 9875, and we will work out boards, lengths, fixings and oil, with about 10% allowed for cuts.