Self-leveling underlayment is one of the fastest ways to fix a floor with dips, but only if you are ready for it. Once the material is mixed, the clock is running. Having the right tools laid out before you start is what separates a smooth pour from a scramble. Here is what a typical self-leveling job calls for.
Read the product data sheet first
Every leveling compound has its own water ratio, working time, minimum and maximum thickness, and priming requirements. Those details come from the manufacturer, not from this article, so read the data sheet before you start. Everything below is the general kit that most pours use.
Prep comes before the pour
Self-leveler is not a magic fix for a dirty or unsealed floor. Clean the surface and remove loose material, fill cracks and holes that could let the material leak out, and apply the primer your product calls for. If you are working over concrete, test moisture first. Our concrete prep guide covers the full process.
At the walls and doorways, you need to hold the material in. An expansion strip also separates the leveler from the wall. The Uzin Foam EXP Strip is a self-adhesive polyethylene strip meant for exactly that, installed before the compound goes down.
Mixing paddles
A good paddle blends powder and water into a smooth, consistent mix without whipping in extra air. Paddles are built for specific buckets and drills. The Ardex Large Mixing Paddle is contoured to the inside of the mixing barrel and is made for mixing self-leveling cements. Use a drill with enough power for the job, and check that the paddle fits it before the pour day.
Buckets and drums
You need a container big enough for the batch and sturdy enough to handle. The Uzin Mixing Drum is an 8 gallon heavy duty bucket with handle grips, used for blending liquid and powder products. Keep a second clean bucket for measuring water, so every batch uses the same amount. Wash tools between batches, since set material in the bucket ruins the next mix.
Gauge rake
A gauge rake spreads the compound and lets you check how deep it is going down. The Ardex T-4 Gauge Rake is sold without a handle and is used to spread and check material depth as it goes down. You will need to supply a handle. Adjustable rakes let you set the depth to what the job needs.
Smoother
After the rake, a smoother moves material across the floor and helps relieve surface tension so the compound can level itself. The Uzin Smoother 22 inch is a hand smoother made for placing and spreading self-leveling compounds, and it is made for use with Uzin leveling compounds listed in its description. Light, steady passes work better than pushing hard.
Spiked roller
Once the compound is down, a spiked roller helps release trapped air so you do not end up with bubbles and pinholes in the surface. The Wolff 29 inch Spiked Roller is described as used for aerating leveling compounds and includes a splash guard. Roll while the material is still workable, and check your product instructions for timing.
Walking on a wet pour
You will often need to reach into the pour to roll or touch up an area. Spiked shoes let you walk on the wet material without leaving footprints. The Wolff Nail Shoes strap on over your shoes and have spikes, and the listing says they are meant for walking on mortars, self-leveling compounds and other new floor coatings.
A simple crew plan
Self-leveling goes best with a crew, with defined roles. One person mixes and pours, one spreads with the rake and smoother, and one rolls. If you work alone, mix smaller batches that you can place before the working time runs out. Keep water, bags, buckets and cleanup supplies right next to the work area.
Safety and cleanup
Powder compounds make dust, so wear a respirator and eye protection while mixing, and gloves for the wet material. Follow the safety information on the product. Do not wash leftover material down household drains. Let it set in the bucket and dispose of it as the manufacturer and local rules say.
Quick checklist
- Read the data sheet for ratio, working time and thickness limits.
- Clean, seal cracks, prime and set expansion strip at walls.
- Have paddle, drill, buckets, rake, smoother and roller ready before mixing.
- Measure water the same way every batch.
- Roll to release air while the compound is workable.
You can see every item we carry for this work in Self-Leveling Tools. If you are not sure what a job needs, contact us.