Thin Screed Mix?

I’m Andy Parkin, Managing Director of the Multi-Award Winning Speed Screed. Today I would like to talk about thin screed mix.

Thin Screed Mix

When we are talking about thin screed mix, you have to look at what you are trying to achieve with them. What your substrate is, what products can you use that will go down to the desired thickness that you are looking for.

So what we need to do is we need to break them down into the most popular three types of construction, bonded, unbonded and floating. So if we look at them individually each of them allows for a different minimum depth.

Bonded

Bonded is when we are actually directly bonding to the substrate. Generally we need a primer or a bonding agent and these kind of products can generally go down thinner than all the other products when bonded.

Starting with such a thin screed means you can take out those little bumps and imperfections with a smoothing compound that is bonded to a substrate.

When you’re bonding to the substrate, it needs to be clean, free from contaminants. It also needs to be sound, no crumbling or breaking up of the substrate. Surface preparation may be required, and whilst I’m not going to go into that in too great a depth, however bear that in mind that the substrate needs to be suitable to be able to bond directly to. If it is not you may suffer delamination and the screed could crack and your surface coverings could bubble and effectively pop and delaminate.

Fast drying, rapid setting screeds are termed as “modified”.

Unbonded

Unbonded screeds you would be looking at a membrane in between the substrate and the screed so there would be no bonding taking place.

Floating

Floating construction would have either thermal or acoustic insulation between the substrate and the screed.

I hope that explains a little bit about thin screed mix minimums. If you need any further information, please get in touch and I’d be happy to answer all your questions.

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