DOWSIL™ 798 Cold and Clean Room Silicone
Silicone for cold rooms, air conditioning and clean rooms. Contains bactericidal fungicides. Bacteriostatic sealant, compliant with ISO 22196:2007 for MRSA, E. Colis and Salmonella and with ISO 846 for P. Aeruginosa
A single component neutral curing silicone sealant suitable for interior and exterior use where joints are susceptible to mould.
It is specifically designed for sealing in critical environments such as, but not limited to, hospitals or medical rooms, clean rooms, server rooms, cold rooms, refrigeration or food-related areas.
Application:
Specially designed for sealing refrigerated areas
- refrigerators
- cooling units
- ventilation systems
- air conditioning systems
- refrigeration and freezing rooms
Features and benefits:
- Neutral Alkoxy Curing System
- 100% silicone polymer
- Resistant to fungi and mold
- Bacteriostatic sealant
- Low modulus, high flexibility
- Faint smell
- Compliant with ISO 11600-F&G-25LM
- Resistant to ozone, UV radiation and extreme temperatures
Standards and Specifications
- Compliant with SNJF (facade – 25E)
- Not susceptible to bacteria according to ISO 22196:2007 for methicillin
Staphylococcus aureus, Escherichia coli and Salmonella enteritidis. - Insensitive to bacteria according to NF EN ISO 846 – Method C for Pseudomonas aeruginosis.
- Insensitive to mold according to NF EN ISO 846 – Method A and B for Aspergillus niger, Penicillium pinophilum, Paecilomyces variotii, Trichoderma virens, Chaetomium globus.
Typical Properties
Benefits of the application
| Application temperature range | 5 to 40°C |
| drying time 50%Rh humidity | 30 minutes |
| Resistance type | Ozone resistance, mold resistance, UV resistance |
Technical parameters
| Adhesion to | Aluminum, glass, brickwork, tiles, vinyl/PVC-U |
| Appearance | Opaque |
| Chemistry | Neutral |
| Color | White |
| Hardness - Shore A | 29 |
| Low odor | TRUE |
| Movement | tall |
| epidermis formation time (CTM 98B) | 20 minutes (at (23°C and 50% RH) |
| drying time (CTM 95A) | 30 minutes (at (23°C and 50% RH) |
|
curing speed 23°C and 50% RH (CTM 663A) |
1 day - 2mm 3 days - 4mm |
| Tensile strength | 1.9 MPa (for 2mm thickness) |
| Elongation at break | 700% (for 2mm thickness) |
| Specific gravity at 25°C | 1.51 |
Available packages and colors:
Color: WHITE, packaging 310ml
Durability and Storage
When stored in cool, dry conditions below 30°C (86°F) in the original, unopened containers, DOWSIL™ 798 Cold Room Silicone Sealant has a usable life of 12 months from the date of packaging.
date of production.
How to use
When designing joints using DOWSIL™ 796 Neutral Silicone, the minimum joint width should be 6 mm. For joints between 6 and 12 mm wide, a seal depth of 6 mm is required. For joints greater than 12 mm wide, a width to depth ratio of 2:1 should be used.
Preparation of the substrate
Ensure that the surfaces to be sealed are clean, dry, sound and free of dust, release agents and other contaminants that may impair adhesion. All non-porous surfaces should be cleaned and degreased by wiping with a suitable solvent such as DOWSIL™ R-40. Porous
Surfaces such as concrete, brick and mortar must be cleaned mechanically.
Masking / Protection
Areas adjacent to joints should be masked with tape to prevent contamination of the substrate and to ensure a clean sealant line. Masking tape should be removed immediately after application.
Processing / Finishing
The joint should be tooled within 5 minutes of application to ensure good contact between the sealant and the substrate. Tooling the sealant also provides a smooth, professional finish.
Cleaning
Excess sealant can be removed in its uncured state using DOWSIL™ R-40 All-Purpose Cleaner. If the sealant is improperly applied to porous substrates, it should be allowed to cure completely and then mechanically removed.
Limitations
Do not use DOWSIL™ 798 Silicone Sealant on bituminous, natural rubber, chloroprene or EPDM based substrates or on building materials and flexible plastics which may bleed oils, plasticizers or solvents.
Special tests should be performed on sensitive substrates. DOWSIL™ 798 is not recommended for structural glazing or insulating glass applications.
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Let customers speak for us
Produkt zgodny z opisem. Polecam
Świetny smar do mechanizmów precyzyjnych. Smaruję nim mechanikę magnetofonów, magnetowidów itp. Nie działa negatywnie na elementy gumowe jak też plastikowe. Jest dość rzadki i nie stwarza oporu dla precyzyjnych urządzeń. Świetnie je wycisza. Jest jeszcze jeden smar YM103 ale dostępny tyko w 1 kg puszkach. On jest nieco gęstszy.
Wszystko sprawnie , szybko i bez problemu . Polecam !!!
Szybka przesyłka; dobra dostępność środków, które trudno kupić gdzie indziej. Profesjonaliści.
Sam olej doskonały do hydromoddingu zegarków: rzadki, nie ma tendencji do spieniania się.
