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SiF Sealers

SIF - Si20 - DS - Concrete Densifier and Sealer (Ready to Use)

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Si20-DS is a water based silicate and siliconate densifier-water repellent sealer for use on most types of porous limestone and concrete building materials.

Si Densifiers & Moisture Barriers – Silicates

Si Chemistry: Silicate based densifiers and moisture barriers are alkaline solutions containing soluble metal silicate salts. They are small molecules that when applied onto a substrate penetrate deep below the surface. They chemically react with cementitious substrates to form a cross-linked silicate polymer that permanently blocks substrate capillaries reducing the movement of water. The substrate becomes significantly denser, harder and stronger and is less susceptible to dusting.

Key advantages

    • Significantly increases density, hardness and strength
    • Excellent dust proofing of substrates
    • Significantly reduces movement of water
    • Minimises efflorescence
    • High penetration into masonry surfaces
    • High wear resistance, UV stable, long life
    • Can be applied to damp or wet substrates


If your order is placed before 2:00pm, we will try to post same day.

We use a range of couriers to provide you with the best possible freight pricing.

If your order does not ship immediately, we are likely waiting on a courier update. Please refer to your account for updates or contact us to find out more.


We are happy to work with you if you need a return. Please contact us to discuss.

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SIF - Si20 - DS - Concrete Densifier and Sealer (Ready to Use)

Softwash Australia

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What is the Softwash Australia Trade Event?

Designed to help professionals in the exterior cleaning industry connect, we have invited the best in Australia and flown in the best from America for our 2023 Event.
As the ONLY exterior cleaning event directed at professionals, expect amazing deals, advice and beneficial networking that WILL improve your business.

What equipment do you provide?

Softwash Australia manufacture and distribute a range of Softwash Application Systems, equipment, training and products for the exterior cleaning professional.

We work with industry professionals such as Jetwave, Honda and more to provide you with a one-stop-shop that offers more than one solution for your business.

For an honest and practical answer to your exterior cleaning questions, call and speak to one of our team today - we'll see you right.

Do you provide after sales support?

Yes we do. Softwash Australia prides itself on service and support. If we can assist to resolve an issue you may be having as a result of any service provided to you. Please contact us via the links provided.
We also are happy to connect our valuable clients with our vast network of service providers across a range of trades.

How long does it take to get started?

We custom build our Softwash Skids to suit your vehicle, trailer or anything else you want us to build on.

With any custom build, there may be delays while we wait for equipment and shipping can disrupt our build timelines.

We will keep you informed along the way and we guarantee it will be worth the wait.

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