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Sika Sikaflex Pro 300ml white polyurethane sealant cartridge for sealing movement joints in facades, ±25% capability.
Sika Sikaflex Pro 300ml white polyurethane sealant cartridge for sealing movement joints in facades, ±25% capability.
Sikaflex Pro polyurethane sealant 300ml cartridge
Sika Sikaflex Pro 300ml white polyurethane sealant cartridge for sealing movement joints in facades, ±25% capability.
Sika Sikaflex Pro 300ml white polyurethane sealant cartridge for sealing movement joints in facades, ±25% capability.
Sikaflex Pro polyurethane sealant 300ml cartridge

Sikaflex Pro Polyurethane Sealant 300ml Cartridges

Sikaflex PRO polyurethane sealant in cartridge format for concrete and masonry façade joints and building perimeter weatherseals. ±25% movement, approximately 150-minute tooling time at 23°C, and approval for specified potable-water contact.

Vendor: Sika
SKU: SIKAPROWH/CTG/BOX
Availability: In Stock
$241.80
$241.80
Prices do not include GST

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This item is supplied to order and is not confirmed as in stock at any store. For availability before visiting, email contact@adheseal.com.au.

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Flat-rate shipping $17.95 + GST (metro and standard zones). Excludes remote/regional/high-cost postcodes and certain items (DG, oversized, long-length, or bagged products 15 kg+). If your order includes any of these, we will contact you to arrange additional freight charges. Online purchases only.

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Description  

Sikaflex PRO Cartridges is a one-component polyurethane joint sealant for concrete and masonry movement joints, façade connections and general building weatherseals. This cartridge format is used with a compatible sealant gun and provides ±25% movement capability and an elastic seal after moisture curing.

Movement and connection joints

Sikaflex PRO is designed for internal and external sealing around concrete panels, brickwork, render and other compatible building substrates. It offers good adhesion to many surfaces when prepared correctly. Sika specifies particular primers or activators for porous surfaces, coated metals, glazed tiles and PVC. The product carries AS/NZS 4020:2018 approval for potable-water contact, subject to the manufacturer's application requirements.

Before you apply

Prepare clean, dry and sound joint faces, use suitable backing rod, and follow the current Product Data Sheet for joint dimensions and priming. Do not use on natural stone, bitumen, natural rubber, EPDM, swimming-pool joints or for permanent immersion or joints under water pressure. Keep alcohol-containing products away during cure and test paint compatibility.

For larger sealing runs, see Sikaflex PRO 600ml sausages.

Common Questions  

What movement can Sikaflex Pro accommodate?
It has ±25% movement capability.

Is Sikaflex Pro paintable?
It can be overpainted with compatible coating systems, but non-flexible paints can restrict movement and crack. Test compatibility first.

Can Sikaflex Pro be used around swimming pools?
No. Do not use it in or around swimming pools, under water pressure, or for permanent water immersion.

Is Sikaflex Pro suitable for potable water applications?
Yes. It is approved to AS/NZS 4020:2018 for contact with potable water.

What pack is this listing for?
This listing is for 300ml cartridges.

Uses & Benefits  
One-component polyurethane sealant for movement and connection joints in concrete, masonry and other common building materials. Accommodates ±25% joint movement and is rated Class 25 under ASTM C 920 and ISO 11600 F 25 LM. Service temperature range is -40°C to +70°C after cure. Approved to AS/NZS 4020:2018 for contact with potable water. This listing is for 300ml cartridges.
How To Apply  
Use on clean, dry, sound substrates free from oil, grease, dust and loose material. Install closed-cell polyethylene backing rod and design joints between 10mm and 40mm wide at a 2:1 width-to-depth ratio. For concrete, aerated concrete, render, mortar and brick in critical applications, use Sika Primer-3 N and allow 30 minutes to 8 hours flash-off. For aluminium, stainless steel, galvanised steel, powder-coated metal and glazed tile, use Sika Aktivator-205 and allow 15 minutes to 6 hours flash-off. PVC uses Sika Primer-215 with 30 minutes to 8 hours flash-off. Extrude continuously into the joint without trapping air, then tool firmly against the joint sides. Use Sika Tooling Agent N for a smooth finish. Clean uncured material with Sika Remover-208. Cured sealant must be removed mechanically.
Limitations and Safety Info  
Do not use on natural stone. Do not use on bituminous substrates, natural rubber, EPDM rubber, or materials that bleed oils, plasticisers or solvents. Do not use in or around swimming pools, under water pressure, or for permanent water immersion. Do not expose uncured sealant to alcohol-containing products. Non-flexible paint systems can restrict sealant movement and may crack. Test paint compatibility before use. White and other light colours may yellow under UV, chemical or high-temperature exposure without affecting technical performance.
Suitable Substrates  
  • Porous: Concrete, aerated concrete, cement-based renders, mortars and brick.
  • Metals and glazing: Aluminium, anodised aluminium, stainless steel, galvanised steel, powder-coated metals and glazed tiles.
  • Other metals: Copper, brass and titanium-zinc with the specified Sika pretreatment system.
  • Plastic: PVC with Sika Primer-215.

Sikaflex Pro Polyurethane Sealant 300ml Cartridges Physical Properties

Sikaflex Pro Polyurethane Sealant 300ml Cartridges Physical Properties
Property Value
Composition Polyurethane
Density 1.25 kg/l approx.
Shore A Hardness 25 approx. (after 28 days)
Modulus 0.35 N/mm² approx.
Secant Tensile Modulus at 100% elongation (-20 °C) 0.50 N/mm² approx.
Elongation 750% approx.
Movement Capability ±25%
Elastic Recovery 90% approx.
Tear Strength 5.5 N/mm approx.
Service Temperature -40 °C to +70 °C
Sag / Slump 0 mm (20 mm profile, 50 °C)
Ambient Temperature +5 °C to +40 °C, min. 3 °C above dew point temperature
Substrate Temperature +5 °C to +40 °C
Cure Rate 3 mm/24 hours approx. (23 °C / 50% r.h.)
Skin Time 170 minutes approx. (23 °C / 50% r.h.)
Tooling Time 150 minutes approx. (23 °C / 50% r.h.)
Flash Point ca. 63 °C (closed cup)
Vapour Pressure 0.01 hPa
Solubility in Water Insoluble
Shelf Life Sikaflex® PRO has a shelf life of 12 months from the date of production, if it is stored in undamaged, original, sealed packaging, and if the storage conditions are met.
Storage Conditions Sikaflex® PRO shall be stored in dry conditions, where it is protected from direct sunlight and at temperatures between +5 °C and +25 °C.

Sikaflex Pro Polyurethane Sealant 300ml Cartridges - Use Cases

Here are some common examples on where Sikaflex Pro Polyurethane Sealant 300ml Cartridges used by our customers.

Concrete, Masonry & Civil Repair

Concrete & Masonry Movement Joints

Sealing designed movement joints in concrete, brick and masonry façades.

Polyurethane cartridge sealant accommodates the specified ±25% movement on prepared substrates.

  • Seal appropriately designed movement joints in concrete and brickwork façades.

Facility & Property Maintenance

Perimeter & Service Connections

Sealing non-structural compatible building perimeter connections and selected service penetrations.

Elastic joint sealing under suitable dimensions and substrate pretreatment; not for permanently immersed or pressure joints.

  • Use for compatible non-structural building perimeter and connection sealing with correctly prepared joint faces.

Civil & Infrastructure

Potable-Water Contact Details

Specified potable-water contact details meeting Sikaflex PRO's applicable approvals and installation conditions.

Potable-water-contact certification is limited to the conditions of approval and does not override exclusions for immersion or water pressure.

  • Specify only where AS/NZS 4020:2018 product approval and service conditions are satisfied, excluding immersed or pressure joints.

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