Siltech Opti-Tile
Flexible Tile Adhesive
Flexible tile adhesive for interior spaces
Siltech Opti-Tile is a high-performance, ready-mixed flexible tile adhesive developed for interior tiling where control, consistency and clean results matter.
Designed for ceramic, mosaics and similar porous tiles, Opti-Tile delivers high grip, anti-slump performance and flexible adhesion in a smooth, ready-to-use paste, helping tiles stay where you place them from the first tile to the last.
Product
Overview
Properties
Opti-Tile Flexible Tile Adhesive is a ready-mixed, polymer-based adhesive for interior walls and limited floor use. It offers fast grab, strong adhesion, flexibility and water resistance and is suitable for ceramic tiles, mosaics, and other porous tiles on various surfaces.
installation
Built for
confident
Fast Grab
Helps keep tiles in position as you work, reducing movement during installation.
Anti-slump control
Formulated for vertical applications to support clean, accurate placement on interior walls.
Flexible adhesion
Designed to accommodate minor substrate movement, supporting long-term bond integrity.
Ready-mixed convenience
No mixing. No measuring. Just open, apply and tile.
for interior applications
Designed
Opti-Tile is suitable for:
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Interior wall tiling
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Selected light-duty interior floor applications
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Bathrooms and kitchens (interior use)
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Skirting boards, cornices and decorative wall features
A practical choice for both DIY renovations and professional interior installations.
substrates
Compatible
Suitable for use on properly prepared:
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Plaster
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Concrete
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Gypsum plaster
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Cement fibre board (primed)
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Chipboard (primed)
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Timber (primed)
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Pre-primed corrosion-resistant metal surfaces
At least one bonding surface must be porous.
tile types
Suitable
Opti-Tile is formulated for:
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Ceramic tiles
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Mosaics
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Similar porous tiles
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This focused formulation ensures dependable adhesion where ready-mixed flexible tile adhesives are most effective.
Why
Opti-Tile ?
Most interior tiling problems don’t come from the tile.
They come from movement, slip and inconsistency during installation.
Opti-Tile is formulated to reduce those variables.
Its high grip helps keep tiles in place as you work.
Its anti-slump formulation supports clean vertical installation.
Its flexible adhesion is designed to accommodate minor movement in interior environments.
The result is a more controlled tiling process, especially where accuracy, alignment and finish matter.
options
Packaging
Available in pack sizes to suit small projects and large installations:
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1 kg bucket
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2 kg bucket
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5 kg bucket
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20 kg bucket
Use Guidelines
Important
For correct use and reliable results:
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Interior use only, not suitable for exterior applications
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Not suitable for submerged areas (including pools)
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Not intended for heavy-duty tiles
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Tiles must not be butt-joined, as space is need for tile expansion
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Minimum grout joints:
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Walls: 2 mm
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Floors: 3 mm
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Do not tile over expansion or movement joints
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Proper surface preparation is essential for reliable results.
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Allow a minimum of 24 hours before carrying out additional work such as grouting.
FAQ
Is Opti-Tile suitable for bathrooms?
Yes. Opti-Tile is suitable for interior bathrooms and kitchens where tiles are exposed to occasional moisture. It is not intended for permanently submerged areas.
Can Opti-Tile be used on walls and floors?
Opti-Tile is designed primarily for interior wall tiling and selected light-duty interior floor applications.
Is Opti-Tile a ready-mixed tile adhesive?
Yes. Opti-Tile is supplied ready-mixed for consistent application, with no on-site mixing or product alteration required.
What tiles can I use with Opti-Tile?
Opti-Tile is formulated for ceramic tiles, mosaics and similar porous tile types used in interior applications, including lightweight brick, stone and clay tiles.
Can I use Opti-Tile for exterior tiling?
No. Opti-Tile is designed for interior use only and is not suitable for exterior or permanently wet applications.
