ULTRA LEVEL C500
Rapid hardening self-levelling underlay
Product overview
Bostik Ultra Level C500 is a rapid hardening, polymer-modified cementitious underlay that mixes with water and pours to a smooth, level finish without shrinkage or cracking. It's a single-component powder, so there's no second part to measure out, and it's designed for a fast, single-operation pour straight onto prepared concrete. Its standout benefit is speed, with the floor ready to walk on again in just 2 to 3 hours, so the job doesn't have to sit idle waiting for the pour to catch up.
It's dimensionally stable once cured and suited to residential, commercial, and industrial floors, including areas over subfloor heating. Screeders and levelling contractors reach for it when the schedule is tight, because a quick-turnaround pour still needs to hold its strength and flatness right through to floor covering day.
Why choose Ultra Level C500?
Ultra Level C500 builds strength quickly, so the fast cure doesn't come at the cost of long-term hold. Working time runs from 20 to 60 minutes depending on site temperature, and reflow time is a brisk 10 to 15 minutes, giving installers a quick but workable window before it firms up. Vinyl and timber can go down after 16 hours, and carpet and tile after just 6 to 8 hours. It's proudly Made in Australia, so supply stays consistent and local for contractors relying on it.
Where to use it
Use it as an underlay ahead of vinyl and timber, or under carpet and tile where a quicker covering time is needed, on new or existing concrete floors, including those with subfloor heating.
Check the TDS for full product information.
TIP: For larger pours or areas needing a longer working window and higher fill depth, try Ultra Level Plus C700, a high-flow underlayment that pours up to 50mm.
It's dimensionally stable once cured and suited to residential, commercial, and industrial floors, including areas over subfloor heating. Screeders and levelling contractors reach for it when the schedule is tight, because a quick-turnaround pour still needs to hold its strength and flatness right through to floor covering day.
Why choose Ultra Level C500?
Ultra Level C500 builds strength quickly, so the fast cure doesn't come at the cost of long-term hold. Working time runs from 20 to 60 minutes depending on site temperature, and reflow time is a brisk 10 to 15 minutes, giving installers a quick but workable window before it firms up. Vinyl and timber can go down after 16 hours, and carpet and tile after just 6 to 8 hours. It's proudly Made in Australia, so supply stays consistent and local for contractors relying on it.
Where to use it
Use it as an underlay ahead of vinyl and timber, or under carpet and tile where a quicker covering time is needed, on new or existing concrete floors, including those with subfloor heating.
Check the TDS for full product information.
TIP: For larger pours or areas needing a longer working window and higher fill depth, try Ultra Level Plus C700, a high-flow underlayment that pours up to 50mm.
Geographic availability
- Australia
Smart Advantages
Accepts foot traffic in 2-3 hours, with carpet and tile coverable in 6 to 8 hours
Very fast application, single operation
Made in Australia
ABOUT ULTRA LEVEL C500
- Accepts foot traffic in 2 - 3 hours
- Single component, just add water
- Very fast application, single operation
- Dimensionally stable
- Rapid curing
- Receives vinyl & timber after 16 hours, carpet & tile after 6 – 8 hours
- Can be applied directly onto prepared concrete surfaces
RECOMMENDED USES
- Superior underlay for vinyl & timber floor coverings (may be used under carpet & tile if quick covering time is required)
- Reinstatement of new or existing concrete floors subject to foot traffic, industrial equipment, and fork lift traffic or trolleys.
- Residential, commercial and industrial applications,
- Heavy industrial traffic
- Wet areas (not immersed)
- With under subfloor heating
