Technical Data Sheet - Maxisil A Ceramic Silicone Sealant

Acetoxy Silicone Sealant with good tooling and smoothing properties in 26 standard colours

Description - Maxisil A Ceramic

• Is a one-component silicone sealant.
• Is based on an acetoxy cross-linking system.
• Vulcanizes at room temperature (RTV)

Fields of application - examples

Maxisil A Ceramic is designed for applications in the ceramic, sanitary, bathroom, kitchen and flooring sectors. For example it can be used for:

- Sealing connection joints between ceramic tiles, bath tubs, shower cabins, sinks etc.

- Sealing expansion joints of floors and walls.

- A wide variety of further applications in the building sector, such as:

- Sealing connection joints of door and window frames

- Sealing aluminum/glass constructions and windows

- Non-structural glazing of glass

- Glass block glazing

- Sealing parapet elements

- Sealing other building components.

- Interior/ exterior use.

Please note: Use Maxisil N natural stone silicone sealant for natural stone application such as marble and natural stone. For nonferrous and galvanized metals, we recommend a neutral cure silicone .

Advantages

• Good tooling and smoothing properties
• Excellent primerless adhesion to glazed and unglazed ceramic tiles
• Primerless adhesion to many other substrates
• Medium skin-forming time for easy handling
• Excellent weatherability, resistant to ageing, UV-radiation and chemicals and temperature resistance
• High mechanical strength ensures a good impact. Resistance (notched impact value, tensile strength and tear-propagation resistance)
• Ready-to-use
• Contains no solvents, such as formaldehyde, CFC, PCB, PCP
• Equipped with fungicides
• Meets DIN 18545, part 2,D (german industral standard)
• 26 standard colours in stock - special colours available on request.

1. Technical data

This technical data is not intended for use in preparing specifications. Please contact ROBERTS DESIGNS AUSTRALIA before writing specifications.

2. Instructions for use

2.1. Surface preparation

 

Compatibility: Paints, lacquers, plastics and other coatings must be compatible to the sealant.

 

Cleaning: Clean all joints/substrates, remove all foreign matter and contaminants such as grease, oil, dust, water, frost, surface dirt, old sealants, glazing compound., protective coatings (e.g. bituminous coatings) and other substances which can affect adhesion. The joint edges must be firm.

 

Cleaners for porous substrates: They should be cleaned with stiff-bristled brush, rubbed down or sandblasted.

 

Cleaners for non-porous substrates: Cleaned with Maxisil A Ceramic Cleaner, methylated spirit or other cleaners with an acetone or isopropanol basis. Use a clean, lint free, cotton cloth.

2.2 Back-up foam and tape

Back-up foam should be inserted in order to establish the correct depth of the joint and to avoid adhesion to the bottom of the joint.
Indoor use: PUR (polyurethane) back-up foam

 

Outdoor use: PE (polyethylene) back-up foam as cells are closed and water repellent

 

Shallow joints: PE back-up tape

2.3. Primer schedule

Symbols used for Recommended Primer
- Not recommended
+ Good primerless adhesion
T Test recommended

2.4 Adhesion and priming / primer schedule

Application primer: The primer must be applied in a thin even layer on the flanks of the joint.

 

High demands on adhesion: Extreme fluctuations in temperature, tensile or shear forces, permanent water etc. cause high stress on adhesion. In such cases, it is advisable to apply primer according to the recommendations of our technical department.

2.5 Application sealant

Avoid direct contact between sealant and plasticiser emitting products: Direct contact between sealant and the following plasticiser emitting products should be avoided because these products may cause yellowing of light-coloured silicone sealants: e.g. butyl rubber, ethylenepropylendienemonomerpolymer (EPDM), neoprene, bituminous coatings and products.

 

Application sealant: Sealant must be applied after the primer has dried for at least 15 minutes.

 

Avoid air entrapment: The joint must be completely filled to avoid air entrapment and to make the joint leak-proof.

 

Tooling/smoothing: The sealant must be smoothly tooled before the skin forms in order to ensure integral contact with joint flanks. Our smoother shows an excellent tuning to our sealant and is particularly kind to the skin.

 

Masking tapes: Masking tapes must be removed immediately after tooling.

 

Silicone sealant and overpainting: The paint film will not stretch with the extension of the silicone sealant. The paint film may crack or peel and the silicone sealant may be damaged.

3. Technical service and consulting

Our technical department provides access to laboratory facilities and application support.

4. Colour

Colour table on request

* =Equipped with fungicides

5. Packaging

6. Safety

Please refer to our material safety data sheet

7. Disposal

Disposal should be made in accordance with federal, state and local regulations.

8. Warranty

All information, data, direction or advice presented by ROBERTS DESIGNS is believed to be accurate and reliable, but do not absolve the user from carefully checking all supplies immediately on receipt. However, as ROBERTS DESIGNS has no control over the uses to which its products may be put or the conditions of use, it is the users responsibility to determine suitability of use e.g. by performing own tests.

 

ROBERTS DESIGNS makes no warranties concerning the fitness or suitability of its products for a particular use. Statements concerning possible or suggested uses of the materials described herein can not be seen as warranty for your application. ROBERTS DESIGNS warrants only that its products will meet its specifications. We reserve the right to alter product constants within the scope of technical progress or new developments.

 

Of course, ROBERTS DESIGNS can perform tests and deliver a special written recommendation for a specific application on request. If the application in which the products are used requires governmental approval or clearance, the user must obtain it.

 

In the event of a claim due to failure of our products, ROBERTS DESIGNS sole liability is limited to provide sufficient product for replacement. ROBERTS DESIGNS will not be liable for any labour or any other costs associated with the failure.

 

The recommendations do not absolve the user from the obligation of investigating the possibility of infringement of third parties' rights and, if necessary, clarifying the position.

9. Edition

01/07/2006

This edition becomes invalid in the event of a republication

Roberts Designs

204 Boneo Road

Rosebud VIC 3939

 

Phone: (03 5986 6366

Facsimile: (03) 5986 6680