WA Sealers

Perth based supplier of innovative paving, stone & concrete cleaning and sealing products

5.00 out of 5
3 reviews

Pro Primer 575 Concentrate

  • 5L Concentrate makes 25L of primer
  • 5L Concentrate primes up to 125m2
  • From $1.76/m2 (RRP)
  • Price is exclusive of GST & Shipping.
  • Trade & bulk order discounts available. (Click Here)




Pro Primer 575 Plaster and Concrete Primer Logo

ProPrimer 575 is a concentrated water based copolymer which provides super strong binding and priming capabilities to porous and friable materials. It is the perfect primer for concrete, masonry, render, plaster, hebel and other porous building materials.

Cementitious Compatable Primer & Admix

ProPrimer 575 is completely cementitious compatible. That means it can be used as an admix in concrete, cement, and lime based renders as an admix or be applied as a primer shortly after finishing. Most polymers can’t handle the high alkalinity of such materials, but this product has been specially designed so it is unaffected by these harsh conditions.

When used as an admix in concrete, mortar, screeds and plasters, it adds flexural strength to otherwise brittle materials. This significantly increases overall strength and durability. It also makes the concrete waterproof!  This makes it a valuable addition to mix profiles when making external render, outdoor furniture, water features, and external structures.

Damp Surface Primer

ProPrimer 575 works best when applied to damp surfaces. This makes it perfect for new concrete, plaster and screeds.  Traditional primers require a dry substrate and therefore new render and concrete needs at least 3 days before it can be primed. Now you can prime concrete and plaster as soon as it is finshed.

No more wasted time waiting for render to dry!

Applying shortly after finishing new concrete, cement or lime work has secondary benefits. The polymer matrix slows down moisture loss from concrete and cementitious screeds. This ensures enough water is retained for proper curing. Materials treated in this way are much less likely to crack, craze and delaminate.

However, ProPrimer 575 is not just for new materials. It can be used on all existing porous surfaces. Just dampen down the materials with water prior to application.

Consolidating Binder Repairs Friable Materials

ProPrimer 575 is a high strength cross linking binder. It soaks deep into porous materials and crosslinks to form a tough polymer matrix. This matrix ecapsulates any crumbling or friable particles and binds the whole substrate together. Treated surfaces will be waterproof, non porous and have dramatically improved wear resistance.

These consolidating properties make it the primer of choice for sand finish render, soft stone or masonry, or existing structures damaged by salt or erosion.

ProPrimer 575 is the hidden armour that protects your assets!

Exceptional Priming Performance for Porous Materials

By forming a crosslinking matrix, ProPrimer 575 turns a porous substrate into a non porous, waterproof material. This is far easier to paint than the porous, crumbling surface that existed before. Further, this primer stays slightly tacky for several days after application. This provides the perfect substrate for painting, resurfacing, or adhesives for tiling, cladding or flooring.

  1. Paint (or adhesives) applied to a material treated with ProPrimer 575 will bind strongly to the polymer matrix.
  2. Since this matrix extends deep into the substrate the paint is completely anchored down and cannot peel or delaminate
  3. Paint is not sucked into the material and therefore coverage rates are significantly increased. In most cases the savings in paint more than offsets the cost of the primer.

Cost Effective Concentrated Formula

ProPrimer 575 is supplied as a 5 times concentrate. A 5L container is diluted with 20L of water at the point of use to make 25L of product. This is enough product to prime up to 125m2.

Safer for You & the Environment

ProPrimer 575 is a water based product with almost no VOC’s. This means it is safe to use even in indoor environments. This product is a much safer alternative to the solvent based products which traditionally dominate this market space.

Since the product is shipped as a concentrate there are less carbon emissions compared to ready to use products. This further reduces the overall environmental impact of the product.

NOTE:  This product may yellow with prolonged exposure to UV light. Apply a good quality exterior paint as the final topcoat in environments where render is regularly exposed to sunlight. If required as a final coat, please consider using ProSeal 770 or ProSeal 896, as both these are completely UV stable.


Additional information

Weight 4 kg
Dimensions N/A

5 Litre, 20 Litre, 250ml


Satin Finish


Water Based


Hydrophobic (Water Repellent), Oil Repellent, Penetrating

Product Type

Treatment, Primer


Water Based Sealers


  • Non-Hazardous Material Classification
  • Adds strength to render cement
  • Exterior paints’ best friend
  • Very cost effective to method of increasing the quality of render



Curing Time:
– Touch dry: 30-60 minutes
– Recoat: 24 hours
Coverage:  20-25m²/litre depending on surface porosity
Dilution:   1:4 (1 part product:4 parts water).
(20% of the Portland cement content when used as an admix. Substitute this amount for it’s equivalent  in water.)
Clean-up:  Water
Equipment needed:  Pump sprayer or WBS CSU (Commercial Spray Unit) & broom
Odour:  None



  • For use on newly constructed rendered walls to minimise the development of cement associated surface cracking.
  • Use to bind and waterproof cement based materials.


Dilution: WBS Pro-Primer 575 is a highly-concentrated product that requires dilution with water prior to application.

  • Mix the neat product thoroughly prior to dilution.
  • Suggested dilution rates are:
    1:3 (1 part product:3 parts water)
  • Diluted solution should be mixed thoroughly prior to application.

Apply using the CSU (Commercial Spray Unit) or suitable spray applicator.

Best applied to a wet/damp surface to help draw product into the surface material. Use white colour of the product as a visual aid to achieve even coverage.

Dries clear. Allow 24 hours prior to painting.


Environment & Safety

All Water Based Sealers’ products are environmentally responsible. Pro-Primer 575 is an environmentally friendly product that is:

  • Water-based
  • Contains no petroleum solvents or silicone compounds
  • Non-hazardous and non-toxic
  • 100% biodegradable
  • VOC < 2 g/L

Store products in a cool dry area, keep product out of direct sunlight.

Keep out of reach of children, wash up any spills by flushing with water, avoid  contact with eyes and skin, for professional use only, keep product out of direct sunlight, store in cool dry area.

Classified as Non-Hazardous Material.

Data Sheets

Technical Data Sheet – PP575
Safety Data Sheet – PP575

3 reviews for Pro Primer 575 Concentrate

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  1. 5 out of 5

    Maurice Centanni

    Easy to read instructions and easy to apply.

    (0) (0)
  2. 5 out of 5

    Todd C.

    Awesome product

    (0) (0)
  3. 5 out of 5


    Excellent product. Easy to use to seal my plaster wall. No terrible toxic fumes or smell like other plaster sealers. Highly recommended.

    (0) (0)
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