Detail Product

Bostik UL 100 - Self levelling underlay for carpet and ceramic tiles

: Self Levelling


Bostik UL 100 - Self levelling underlay for carpet and ceramic tiles

Bostik UL 100 is a self-levelling underlay for fast repairs of uneven concrete floors. This single component cementitious underlay formulated to achieve maximum flow without any shrinkage or cracking. This results in a smooth level surface with ease of application.

Key Features

  • Accepts foot traffic in 2 - 4 hours
  • Fast application, single operation
  • Carpet or tile may be applied after 16 hours

Recommended Uses

UL 100 is best used on interior surfaces, in Residential, Commercial and Medium Industrial concrete flooring applications. It is a superior underlayment for carpet and ceramic tiles (may be used under parquet, timber & vinyl after extended curing).

Product Details

  • Can be applied directly onto prepared concrete surfaces
  • Can be poured up to a maximum thickness of 25mm
  • It’s best to use a primer before applying levelling compounds, Bostik UL Primer is best suited
  • Self levelling compounds are to be used as an underlay beneath floor coverings, not as a finished floor
  • Floor levelers have varying dry times depending on the state of the substrate, however as a general rule 16-18 hours wait before applying floor coverings should be observed

To ensure that tiles are installed correctly, please consider using a tiling professional. All Natural Stone and Encaustic tiles should be sealed immediately after install.


To ensure long lasting, beautiful tapware, please do not use any chemical based or harsh cleaners. Also avoid any rough surface materials such as scourers, only use a soft cloth with warm soapy water.


We deliver Australia Wide baby! To estimate delivery time to your beautiful home, see our Shipping info here.


To ensure that our product is perfect for you, before purchasing please consider reading our Refunds and Returns Policy here.