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CERAMIC TILEADHESIVES Polymers as Champions Beneath
Polymer dispersions and their use in ceramic tile adhesivesIdeal use in adhesive applications for walls and floor applications2K systems requiring addition of water and ready-to-use paste with water includedLiquid dispersions available as non-water and water-resistant products
Polymers as your go-between for tiles and substratesMounting ceramic tiles onto floors and walls requires the use of adhesives. As far as ceramic tile adhesive mixtures are concerned, these can be split into three categories:
• CTA paste based on polymer in emulsion, fillers, and additives, yet without cement• 2K systems, which are based on mix of cementitious materials and a polymer in emulsion•• 1K systems, in which the polymer is based on a redispersible powder (RDP). Note: Please refer to our separate application bulletin on ceramic tile adhesives made with RDP.
Ceramic Tile Adhesive Paste - Based on Liquid DispersionsTheseThese liquid formulations have the advantage of being ready to use. Thanks to this, craftspeople can immediately start and stop as needed and are not restricted by the pot life of the system, which is crucial requirement of 2k systems.
CCTA paste can be formulated to be very elastic, using soft elastic dispersions. Typical dispersions for this application are Revacryl AE 4522, Revacryl L 8761 and others.
Ready-to-use tile adhesives are available in two quality types to accomodate different requirements:
• standard requirements (D1)• increased requirements, for instance water resistance (D2)
ForFor D1 products, we recommend standard dispersions such as Revacryl AE 4625. For D2 products, the dispersions require adhesion promoters which are polymerized inside the polymer. Here, Revacryl AE 4522, L 8761, AE 3737 and others represent excellent choices.
2K Ceramic Tile AdhesiveForFor application to floors, mostly cementitious adhesives are used. These are mixtures of sand, fillers, cement, cellulose, additives and dispersions in liquid polymer dispersions. Suitable choices are XSBRs like Lipaton SB 29Y130 or acrylics like Revacryl R 387.
ForFor application to walls, 2K cementitious products (which need to be mixed with water or dispersion) may be used. However, paste-like adhesives based on liquid dispersions are oftentimes recommended, thanks to their ease of application.
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2
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77
8
9
10
Typical class D2 tile adhesive formulation - based on Revacryl AE 4522
Ingredients
Water
Methylcellulose
NaOH, 10 % in water
Revacryl AE 4522
Biocide
Coalescing agent
Mineral oil defMineral oil defoamer
Calcit 3 µm
Ground silica 0-160 µm
Ground silica 0-90 µm
Supplier
SE Tylose GmbH & Co. KG
Synthomer Deutschland GmbH
Thor Chemie GmbH
Elementis SpecialtiesElementis Specialties
Omya GmbH
Quarzwerke GmbH
Quarzwerke GmbH
59
5
2
250
2
10
22
130
250
290
pbw
TestingThe bonding properties are tested in a bonding test or in a shear test. For both tests the value > 0,5 N/mm² needs to be reached for the product to meet the DIN EN 12004
For the bonding strength test below, the tile adhesive was applied to an earthenware tile and pressed on a concrete slab. The shear test, on the other hand, was carried out in accordance with DIN EN 12004.
Forging (and testing) the strong bond
Shear resistance of tile adhesives - based on Revacryl AE 4522, in accordance with DIN EN 12004
Bonding strength [MPa]
Elapsed time under water
Bonding strength of tile adhesives - based on Revacryl AE 4522
Bonding strength [MPa]
Elapsed days
The wet shear adhesion, which is the most critical test to achieve a D2 classification, is more difficult to pass with calcium carbonate paste. Synthomer‘s new dispersion, Axilat™ L 8761, is suitable to attain a D2 classification for water resistance in both silica and calcium carbonate based formulations.
As such, Recryl L 8761 heralds the onset of a new generation of polymer dispersion for CTAs that meet highest demands in most challenging contexts.
Shear resistance results in wet conditions and D2 classification requirements
[MPa]
Shear adhesion in wet conditionSilica based formulation
D2 classrequirement [M
Pa]
Shear adhesion in wet conditionCaCO3 based formulation
D2 classrequirement
Our broad portfolio for ceramic tile adhesives
Product Solid Content [%] 1 pH value 2 Viscosity [mPa*s] Tg [°C] MFFT [°C]
Revacryl AE 3020
Revacryl AE 3737
Revacryl L 8761
Revacryl AE 4522
Revacryl AE 4625
Revacryl R 387
LiLipaton SB 29Y130Notes: 1According to ISO 3251 2According to ISO 976 3According to ISO 2555 (Brookfield) 4According to ISO 3219 5According to ISO 1652 *Data describe typical properties - not product specifications
50.0
50.0
49.0
50.0
50.0
57.0
47.047.0
7.5
7.5
8.0
7.5
7.5
7.0
11.011.0
2504
804
3003
3504
5004
15003
90905
-2
12
15
22
22
-2
-8-8
0
4
5
18
18
0
00
Emulsion properties*
Binders for ceramic tile adhesives - paste and 2k systems
Product
Revacryl AE 3020
Revacryl AE 3737
Revacryl L 8761
Revacryl AE 4522
Revacryl AE 4625
Revacryl R 387
LiLipaton SB 29Y130
Application
For CTA D2 classification, ideal for flexible tile adhesive, water resistance, no coalescing agent needed.
For CTA D2 classification, ammonia free, excellent water resistance, no coalescing agent needed.
For CTA D2 classification, excellent water resistance in calcium formulation, no coalescing agent needed.
For CTA D2 classification, excellent water resistance, high binding strength.
For CTA D1 classification, universal binder, low odor, ammonia free.
For 2K systems, cement compatible, excellent saponification resistance, excellent workability.
For 2K sysFor 2K systems, cement compatible, excellent adhesion, excellent binding strength.
America, Europe and South East Asia. In March 2017, we acquired the coalescing agents and Butyl Ethyl Propanediol (BEPD) business from Perstorp Oxo Belgium AB. The newly acquired businesses significantly improve our footprint to a number of speciality markets which we will continue to serve through a strong network of local technical service and sales branches, supported by regional application dedevelopment and production in our key markets. We deliver the right formula, globally, individually.
Synthomer is one of the world’s leading suppliers of emulsion and speciality polymers supporting leadership positions in many market segments including coatings, construction, technical textiles, adhesives, paper and synthetic latex gloves. The company has its Head Office in London (UK) and provides customer focused services from operational centres in Harlow (UK), Marl (Germany), Kuala LumpurLumpur (Malaysia), Shanghai (China) and Dubai (UAE). In June 2016 we have acquired the Monomers, Dispersions and Powders business (MDP) from Hexion with dedicated production sales and customer service facilities in North
Disclaimer: This information and any other advice or recommendations given or made by us (collectively “Information”), are provided in good faith and are not intended to, nor do they, constitute professional advice or services. Information is provided “AS IS” and on an “AS AVAILABLE” basis and without warranty. We do not warrant or accept responsibility for the accuracy, timeliness or completeness of the Information, or for the suitability of the Information for a particular purpose. We do not accept responsibility, and exclude all liability (including(including under any implied warranties), for any matters arising out of or in connection with your reliance on the Information (including as to infringement of third party intellectual property rights) to the fullest extent permitted by law. Any Information concerning any possible use or application of Synthomer products is given by us in good faith; we do not warrant the fitness of any Synthomer products for any particular purpose and it is entirely for you to satisfy yourself fully as to the suitability of Synthomer products for any particular purpose. purpose. Synthomer products are sold in accordance with Synthomer’s standard terms and conditions of sale which are available from www.synthomer.com/tc.
Group Head OfficeSynthomer plc45 Pall MallLondon SW1Y 5JGUnited Kingdom
Operational Centre EuropeSynthomer Deutschland GmbHWerrastraße 1045768 MarlGermany
www.synthomer.com
Leading in emulsionsand speciality polymers
