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

Adheseal Gap Filla Acrylic Sealant

Name: Adheseal Gap Filla Acrylic Sealant
Brand: Adheseal
SKU: GAPFILLA/CTG
Price: 3.15 AUD
Availability: InStock
Rating: 5.0 (1 reviews)

A paintable acrylic gap sealant that keeps internal joints around frames and cornices flexible instead of cracked. Tack-free in 15 to 20 minutes with water clean-up, so interior finishing keeps moving.

Vendor: Adheseal

SKU: GAPFILLA/CTG

Availability: In Stock

$3.15; $3.15
Unit price: per

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Description

For sealing gaps around internal window and door frames, cornices, plasterboard, sidings, vents, and tiles, Gap Filla Acrylic Sealant provides a flexible seal where rigid fillers are prone to cracking and falling out.

How it works

Gap Filla is an acrylic polymer sealant that cures through water evaporation into a smooth, flexible joint. It is formulated to accommodate up to 5% dynamic movement, allowing it to withstand minor settlement and thermal shifts without releasing the bond. The cured sealant is paintable and can be cleaned up with water during application, making it suitable for multi-trade interior finishing work.

Where to use it

This sealant forms an adhesive bond on common construction substrates, including:

Glass and ceramic tiles
Wood and plasterboard
Brick and concrete
Metal

Limitations

Do not use in areas subject to water immersion.
Do not use in chemical environments.
Not suitable for food contact surfaces.
Not suitable for high-temperature applications, such as stoves, fireplaces, or flues.
Application temperature must be between +5°C and +35°C.

Numbers that matter

±5% dynamic movement: Accommodates minor joint movement to prevent the filler from cracking or falling out.
15 to 20 minutes tack-free time (at 25°C): Provides a quick skinning time to protect the joint from dust and debris before curing.
24 to 48 hours cure time (at 25°C): The required window for water evaporation to complete before the joint reaches full physical properties.
22 g/L VOC: Low-emission formulation meeting the Californian South Coast Air Quality Management Rule 1168.

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
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

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

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