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🚚 NZ SHIPPING: Auckland 1-Day | North Island 2-Days | South Island 3-Days. Please allow 2+ additional days for Rural Delivery (RD) & Central Otago routes.
Si20-D – Water Based Sealer Densifier

Si20-D – Water Based Sealer Densifier

$339.00

Si20-D – Water Based Sealer Densifier

$339.00

Si20-D – Water Based Sealer Densifier

$339.00

NZ stock held in Auckland. Orders placed before 11am dispatch same day. Delivery typically 1–3 working days nationwide.

Stock levels shown in cart. Bulk quantities available - contact us for project supply.

Prices exclude GST. Shipping calculated at checkout.

Product description

Si20-D is a ready to apply, sodium silicate based densifier, hardener and dust proofer for concrete and cementitious substrates. Si20-D penetrates concrete and reacts to form a permanent Calcium Silicate Hydrate (CSH) structure within the pores. Treated surfaces are harder and stronger with a permanently reduced porosity reducing the movement of water and minimising efflorescence.

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

The SiF Sealer Difference:

Our proprietary additives act as a bridge. Instead of being repelled by moisture, the sealer uses the water remaining in the pores as a carrier to "wick" itself deeper into the substrate.

Zero Performance Loss:
Even though it applies to wet surfaces, the final cured barrier offers the same elite-level resistance to salt, oil,
and organic growth as it would on dry concrete.

No "Blushing":
Because the formula is vapour-permeable, any remaining moisture can safely
evaporate through the sealer without causing white cloudy patches.

Please Read in Conjuction with Product Label

How to Apply

  • Clean the surface then rinse thoroughly
  • Sealer can be applied to a damp surfaceFree of visible or pooled water, broom off or use a blower to removeSurface needs to be touch dry

Always add water to the concentrated sealer!
Click here to view the steps

  • Working from the furthest point, begin spraying the sealer while walking backwards
  • Sealer should be sprayed in an even flood coat at a rate of approximately 5m2 per litre – depending on porosity
  • Sealer should remain wet on the surface for at least 5 minutes
  • Only one flood coat is required, however if the surface is very porous, additional sealer can be applied
  • Avoid over spraying sealer on surrounding surfaces.
  • A microfiber mop or similar is required to spread the sealer after the initial light spray
  • A second application may be required if the surface still accepts sealer
  • The surface should be buffed or wiped dry with the mop after each application.
  • A microfiber mop or similar is required to spread the sealer after the initial light spray
  • A second application may be required if the surface still accepts sealer
  • The surface should be buffed or wiped dry with the mop after each application.
  • Don’t apply if pools of water present
  • Don’t apply to hot surfaces (>30 degC), mist with water to cool
  • Don’t allow sealer to pool, remove excess
  • Avoid contacting surfaces not meant to being sealed
  • Don’t apply if rain expected in at least 24 hours
  • Cleaning of sealed surfaces recommended every 12 months with NPH CleanerHarsh chemicals: acids, alkalines, solvents will effect sealer longevity
  • Minimal pressure requiredContaminants/dirt will be close to surface
  • Time to reapply? – NO STRIPPING REQUIRED

How to Choose

Not sure which SiF Product is right for you? Check out our handy diagram or get in touch

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Total price: $339.00