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Amiata Accessories, Adhesives and Grout

Discover our range of Amiata tiling accessories, adhesives, and grouts. When installing your Amiata tiles, these accessories are essential for your tile-related job, providing you with an expert finish each and every time. Choose from backer boards, waterproof kits, grout, sealant, and more. And if you’re yet to decide on tiles, take a look here.

Backer board, also known as cement board or tile backer board, is a flat panel made of cement and fibreglass used as a substrate for tile installations. It provides a stable surface for the tiles and helps prevent moisture from penetrating into the underlying structure. Backer board is typically installed over wooden or concrete subfloors, as well as on walls and ceilings in wet areas like bathrooms and kitchens. It's secured with screws or nails and then seams are taped and mudded for added strength and waterproofing.

Sealant, often silicone-based, is used to create a watertight barrier around areas prone to water exposure, such as joints, corners, and edges. Before applying sealant, it's important to ensure that the surface is clean and dry to promote adhesion. Sealant prevents water from seeping into gaps between tiles, which can cause damage over time, such as mould growth or deterioration of the substrate. It's commonly used around tubs, showers, countertops, and backsplashes.

Grout is a cementitious or epoxy-based material used to fill the gaps between tiles and provide structural support. It comes in various colours to match or contrast with the tiles and can be sanded or unsanded depending on the width of the grout lines. After the tiles are set in place and the adhesive has cured, grout is applied using a rubber float, forcing it into the joints to ensure full coverage. Excess grout is then wiped away with a damp sponge before it dries. Once cured, grout seals the gaps between tiles, preventing water and debris from accumulating and compromising the integrity of the installation.

In summary, backer board provides a stable substrate for tile installations, sealant creates a waterproof barrier around vulnerable areas, and grout fills the gaps between tiles for structural support and aesthetic cohesion. Together, these components ensure a durable and long-lasting tile installation that can withstand moisture and daily use.

 
 

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How do I decide between cementitious and epoxy grout for a bathroom or kitchen?

Cementitious grout is the traditional choice and comes sanded or unsanded depending on joint width; sanded grout suits wider joints while unsanded is for narrow gaps. Epoxy grout is much more resistant to staining and water, making it ideal for constantly wet areas such as shower trays or splashbacks, though it can be harder to work with and more expensive. If you have a shower enclosure or a busy family bathroom, epoxy gives a longer-lasting, low-maintenance finish; for standard walls or less demanding floors, a cementitious grout in the correct sanded/unsanded grade will perform well.

When should I fit a backer board rather than tile directly onto my subfloor or wall?

Use a cement-and-fibreglass backer board when you need a stable, moisture-resistant substrate over timber or uneven concrete, or whenever you're tiling walls and ceilings in wet areas. Backer board prevents moisture reaching the underlying structure and is typically fixed with screws or nails, with seams taped and mudded to improve strength and waterproofing. If you're tiling an older wooden bathroom floor, a backer board will give you a flat, reliable surface for the tiles.

What type of sealant should I use around baths, showers and where tiles meet other surfaces?

Silicone-based sealant is the usual choice because it forms a flexible, watertight barrier at joints, corners and edges where water exposure is highest. Make sure the surface is clean and dry beforehand so the sealant adheres properly, and match the sealant colour to your grout or tiles for a neat finish. In practice, you might use white silicone at the perimeter of a bath and clear silicone where tiles meet a glass shower screen.

My subfloor is timber and I have underfloor heating, which adhesive should I buy?

For timber subfloors or heated floors you want a flexible tile adhesive to accommodate movement and temperature changes; the Amiata SPES Standard Set Flexible Tile Adhesive (white) listed in the range is an example of a product suited to those conditions. Flexible adhesives reduce the risk of tiles cracking or debonding on substrates that expand and contract. If you are tiling over a timber floor with mellow movement or installing over underfloor heating, this type of adhesive is a sensible option.

Which accessories do I need to create a water-resistant tile installation for a shower or wet room?

Assemble a system: a cement backer board as a stable substrate, a waterproof kit to seal the board and joints, suitable grout (epoxy for high-moisture zones) and a silicone sealant for external joins and corners. You'll also need tape and mud for the board seams to improve strength and waterproofing, plus the right adhesive for your substrate such as a flexible adhesive over timber. Using these components together helps keep moisture away from the structure and gives you a durable, attractive finish.