• SPAKFILLA HEAVY DUTY 435G SELLEYS
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Selleys Spakfilla Heavy Duty Filler 435g, Interior & Exterior

Selleys Spakfilla Heavy Duty Filler 435g, Interior & Exterior

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$27.90 AUD
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For the bigger holes and cracks that the standard filler would sink in, inside or out on plaster, brick, concrete, timber, masonry and stone.

Spakfilla Heavy Duty is a ready mixed, water based light grey filler with minimal shrinkage, so there's no need to overfill and sand half of it back off. It's for dents, holes and cracks where there's no movement, and for a deep hole you build it up in 6mm layers, letting each one dry before the next. It dries fast and sands easily, then it's ready for paint. It also suits primed metal.

Full specs are in the tabs below, and if the crack keeps opening up, it needs a flexible filler instead, so call us on (08) 8536 4333 or pop in to 34-52 Milnes Rd, Strathalbyn.

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The details

  • Brand: Selleys
  • Product: Spakfilla Heavy Duty
  • Size: 435g / 385mL tub
  • Type: Ready mixed, water based filler
  • Colour: Light grey
  • Inside or out: Both
  • Surfaces: Plaster, brick, concrete, wood, masonry, stone, primed metal
  • Deep fills: Build up in 6mm layers
  • Shrinkage: Minimal
  • Not for: Cracks that move

Shipping and Returns

We pack and send your order with care, right here from our Strathalbyn store. Most parcels leave within 1-2 business days, and you'll get tracking as soon as it's on the way. If you're local, you can choose click-and-collect or our delivery service at checkout.

If something arrives damaged or not quite right, let us know within 14 days and we'll sort it quickly. You can return unused items in their original condition for a refund or store credit. For safety reasons, we can't accept returns on gas bottles, cut materials, or custom orders.

We're here to make things easy, so if you ever have a question about your delivery or a return, our team is only a call away.

Why you'll love shopping with us

  • Tinted to your colour

    Pick your colour and we'll mix it from the base in store, ready to take home.

  • Advice beyond the tin

    You’ll get guidance on surface prep, application, and conditions — not just which colour to pick.

  • Systems that last

    We focus on proper prep, compatible products, and finishes that hold up over time