Slurry Bond Coats - When and What to Use

Polymer or Latex Fortified Slurry Bond Coats for Traditional Mortar Beds

LATICRETE latex slurry bond coats are used to bond ‘semi-dry to wet’ consistency toppings or leveling beds over horizontal substrates, such as concrete slabs or cement sheets. Their purpose is to provide topping, that otherwise may not have, the ability to adhere adequately to the prepared substrate.

For tile setting purposes, traditional installation methods required dusting dry cement, or spreading a cement paste/slurry over the plastic, semi-dry mortar bed just prior to placing the tiles. The tiles are then placed in the cement rich surface, or more correctly, a Portland cement/water paste and “beaten” to fully imbed them in the mortar bed. “Beating” attaches a layer of cement rich paste as an adhesive between the sand/cement mortar bed surface and the tile backs. A method used with ordinary materials suited to more porous ceramic or stone tile.

Instead of the traditional cement paste, 254 Platinum, 335 Premium Flexible Adhesive or 211Crete Filler Powder gauged with 4237 Latex Additive, mixed to a soft, wet slurry consistency is applied with a flat side of a trowel over the plastic, semi-dry mortar bed. The slurry is usually just 1 mm – 2 mm thick. The tiles are placed in the wet slurry and “beat-in” with a rubber mallet and beating block. A method used with fortified materials suited to dense substrates, ceramic or stone tile.

LATICRETE slurry bond coats provide much longer “open” or working time for mortar bed installation, particularly in hot climates. It also has stronger bond to ceramic or stone tile, ensuring improved resistance to vibration, traffic and physical shock.

For more information click here to read Technical Data Sheet TDS-1009.

For more information on LATICRETE permanent trouble free installation products, training, or technical advice, contact your local LATICRETE representative on 1800 331 012 - or email: sales@laticrete.com.au

Educating the Next Generation

LATICRETE QLD Technical Sales Rep, Mitchell Haw, recently visited the TAFE Queensland SkillsTech to provide training to 4th year apprentices about slurry bond coats and using latex admix in sand/cement screeds. Students had the opportunity to participate in hands-on demonstrations with 335 Premium Flexible Adhesive and 4237 Latex Additive. 

• 335 Premium Flexible Adhesive is a high performance thin-bed adhesive for installing a wide range of tiles and stone including low absorption ceramic tile, porcelain tile, natural and manufactured stone using thin-set method of installation. Exceeds the requirements of AS ISO13007.1&2 classification C2TES1. Excellent for exterior and underwater applications, superior bond to masonry.  
• 4237 Latex Additive is a specially designed latex additive for use with 211 Crete Filler Powder to make a high strength latex thin bed and medium bed adhesive up to 15 mm. For installing all types of tile, stone and agglomerates. Also for use with Portland cement to make slurry bond coats for mortar beds and with thin set adhesives to give improved performance and longer open time.

At LATICRETE we provide training and classes that discuss commercial, residential, industrial tile and stone installation practices and industry standards. Our training utilises both classroom and hands-on product demonstrations.

Want to arrange a demo or seminar customised for you and your team? Call us on 1800 331 012 or contact us here.

Slurry Bond Coats

Polymer or Latex Fortified Slurry Bond Coats for Traditional Mortar Beds

LATICRETE latex slurry bond coats are used to bond ‘wet’ consistency toppings or leveling beds over horizontal substrates, such as concrete or masonry. Their purpose is to provide an adhesive layer that bonds the substrate and the material going over it.

For tile setting purposes, traditional installation methods required dusting dry cement, or spreading a cement paste/slurry over the semi-dry mortar bed just prior to placing the tiles. The tiles are then placed in the cement rich surface, or more correctly, a Portland cement/water paste and “beaten” to fully embed them in the mortar bed.

Instead of the traditional cement paste, 254 Platinum, 335 Premium Flexible Adhesive or 211 Crete Filler Powder gauged with 4237 Latex Additive, mixed to a soft, wet slurry consistency is applied with a flat side of a trowel over the bed. The tiles are placed in the wet slurry and “beat-in” with a rubber mallet and beating block.

A slurry bond coat is also used to bond a mortar bed to a concrete, masonry or other suitable surface, including a previously applied hardened mortar bed. The slurry bond coat is applied to the substrate immediately prior to installing the fresh mortar bed.

LATICRETE slurry bond coats provide much longer “open” or working time for mortar bed installation, particularly in hot climates. It also has stronger bond to ceramic or stone tile, ensuring improved resistance to vibration, traffic and physical shock.

For more information read Technical Data Sheet TDS1009.

For more information on LATICRETE permanent trouble free installation products, training, or technical advice, contact your local LATICRETE representative on 1800 331 012 - or email: sales@laticrete.com.au

The Ultimate Thin-Set Adhesive!

The Orchid Group is busy working on this project in Noosaville, QLD. The team are using 254 Platinum for a slurry bond coat with sand and cement screed.

254 Platinum is the ultimate one-step, polymer fortified, thin-set adhesive. Suitable for interior and exterior installation of ceramic and stone tile, reduced thickness porcelain, quarry tile, pavers and thin brick. 254 Platinum provides long open time with unsurpassed adhesion and workability. Suitable for immersed installations, and meets and exceeds the requirements for a C2TES2P2 classification.

Key Features

• Designed to just mix with water
• High performance flexible cement based adhesive
• High tack, non sag
• Extended open time
• Easy to use – Plastic and workable

Click here for more product information. 

For more information on using LATICRETE in your projects, product demos, samples or technical support please contact LATICRETE on 1800 331 012, email sales@laticrete.com.au or visit www.laticrete.com.au.