11
Adheseal Gap Filla 450g white acrylic sealant cartridge: flexible, paintable gap filler for low-movement joints.
Adheseal Gap Filla 450g white acrylic sealant cartridge: flexible, paintable gap filler for low-movement joints.

Adheseal Gap Filla Acrylic Sealant

Paintable, water-based acrylic gap filler for skirting, cornices, architraves and interior frame gaps. Flexible finish with water clean-up before curing.

Vendor: Adheseal
SKU: GAPFILLA/CTG
Availability: In Stock
$3.15
$3.15
Prices do not include GST
Guaranteed safe checkout
  • Apple Pay
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa
  • Secure SSL encrypted checkout
  • Fast, tracked shipping
  • Easy returns & support
Adheseal tool

Sealant Calculator

Not sure on how much sealant you'll need? Use our calculator to find out.

  • Width + depth presets
  • Instant quantity estimate
Shipping & Delivery

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.

Download Product Data

Download TDS Download SDS
Description  

Adheseal Gap Filla is a paintable acrylic gap filler for skirting boards, cornices, architraves, plasterboard and window or door trim. It fills unsightly gaps and minor cracks with a smooth, flexible finish that is easier to paint than a silicone bead.

Choose Gap Filla for interior finishing and decorating where rigid fillers tend to crack as materials move. It is water-based, low odour and easy to tool; clean up with water before curing. The current formulation is intended for modest joint movement rather than major expansion joints.

Where to use Gap Filla

  • Skirting and architraves: filling gaps before painting timber trim.
  • Cornices and plasterboard: smoothing minor junctions and cracks in painted interiors.
  • Windows and doors: finishing appropriate non-immersed frame and trim gaps.
  • Weatherboards and sidings: filling suitable sheltered building gaps before a compatible finish.
  • Vents and display details: sealing minor gaps in compatible trim and model-making assemblies.

Before painting

Apply to sound, clean, dry surfaces, then smooth the bead. Under suitable conditions the latest TDS describes paintability in as little as ten minutes, but paint compatibility, bead size and weather will affect the result. Gap Filla is not a structural adhesive, waterproofing membrane or immersion sealant. For moving exterior panel joints, choose a purpose-designed movement sealant.

Common Questions  

Can I paint over Gap Filla?
Yes. Let it cure for 24 to 48 hours, then paint with water-based or oil-based paint.

Is Gap Filla right for showers and wet areas?
No. It is not for joints that hold water. Use it on internal gaps that stay dry.

How much movement can the joint take?
Up to +/- 5% dynamic movement. For joints that move more, use a more flexible sealant.

When is the joint ready to use?
It skins in 15 to 20 minutes at 25°C and cures fully in 24 to 48 hours. Keep water off it until a skin has formed.

Uses & Benefits  
Flexible acrylic sealant for gaps around internal window and door frames, cornices, plasterboard, and tiles. Moves up to +/- 5%, so the bead takes minor settlement and thermal shift without cracking or falling out. Paintable once cured. Cleans up with water while it is still wet.
How To Apply  
Clean the joint so it is free of dust, oil, and loose paint, and mask both sides for a sharp line. Cut the nozzle at a 45° angle, push a steady bead into the joint with a caulking gun, and tool it with a wet finger or spatula. It skins in 15 to 20 minutes and cures in 24 to 48 hours at 25°C. Wipe excess off with a damp cloth before it cures. Remove cured sealant mechanically.
Limitations and Safety Info  
Do not use it where the joint holds water, in chemical environments, or on food contact surfaces. Not for high temperature spots such as stoves, fireplaces, or flues. Joints must not move more than +/- 5%. Apply between +5°C and +35°C.
Suitable Substrates  
  • Suits: Glass, ceramic tiles, wood, plasterboard, brick, concrete, and metal.
  • Preparation: Surfaces must be clean, dry, and sound, and free from dust, grease, loose particles, and old sealant.
  • Primer: Not needed on most common building materials when clean and dry.

Adheseal Gap Filla Acrylic Sealant Physical Properties

Adheseal Gap Filla Acrylic Sealant Physical Properties
Property Value
Curing System Water Evaporation
Consistency Smooth Paste
Specific Gravity 1.50 g/cm3
pH 7 - 9
Application Temperature +5°C to +35°C
Movement Capability +/- 5%
Tack Free Time 15 - 20 minutes
Full Cure 24 - 48 hours
VOC Content 22gm/Lt; (Californian South Coast Air Quality Management Rule 1168)
Clean Up Water
Shelf Life 12 months in original packaging
Storage Conditions 10°C and 35°C

Adheseal Gap Filla Acrylic Sealant - Use Cases

Here are some common examples on where Adheseal Gap Filla Acrylic Sealant used by our customers.

Painting

Repair Plasterboard Cracks

Rapidly fill minor non-structural cracks or panel gaps in plasterboard prior to surface preparation and painting.

Its fast tack-free time allows quick repairs and painting, while flexibility prevents cracks from re-emerging post-finish.

  • Tack free 15-20 minutes
  • Dynamic movement +/- 5%
  • Paintable after 15 minutes
  • Adheres to plasterboard, concrete

Caulking

Interior Trim Gap Sealing

Sealing gaps around window frames, door frames, or cornices during interior fit-out.

Its flexibility prevents unsightly cracks in painted joints, while being ready for paint in under 30 minutes.

  • Dynamic movement +/- 5%
  • Tack free 15-20 min
  • Paintable in 30 minutes
  • Water clean-up finish

Caulking

Plasterboard Joint Finishing

Filling minor movement gaps where plasterboard meets other surfaces or internal corners.

This acrylic sealant accommodates minor structural shifts, preventing common cracking failures in painted plasterboard joints.

  • Dynamic movement +/- 5%
  • Adheres to plasterboard, wood
  • Cure time 24-48 hours
  • VOC 22 gm/Lt

Tiling

Interior Fixture Perimeter Seal

Sealing perimeters around interior vents, light fixtures, or tiles in dry or splash-zone areas.

Provides a flexible, paintable seal around various interior fixtures, preventing gaps and simplifying finishing work.

  • Adheres to ceramic, metal
  • Tack free 15-20 min
  • Application temp +5°C to +35°C
  • Smooth paste consistency

Carpentry

Seal Interior Door Frames

Seal gaps around interior window and door frames to prevent draughts and improve the thermal envelope.

Provides a flexible, paintable seal accommodating minor frame movement, preventing cracks and improving interior comfort.

  • Dynamic movement +/- 5%
  • Tack free 15-20 minutes
  • Adheres to wood, metal
  • Application +5°C to +35°C

Alternative Products

Vendor
Example product title
From $3.15
From $3.15
Vendor
Example product title
From $3.15
From $3.15
Vendor
Example product title
From $3.15
From $3.15
Vendor
Example product title
From $3.15
From $3.15
Vendor
Example product title
From $3.15
From $3.15
Vendor
Example product title
From $3.15
From $3.15

Need Help with Adheseal Gap Filla Acrylic Sealant?

Need more information about this product? Hit the button below and reach out to one of our experts now.

Get In Contact
Recently Viewed Products