DOWSIL™ 791 Weatherproofing Silicone Sealant
£15.00 inc. VAT
DOWSIL™ 791 Weatherproofing Silicone Sealant
£15.00 inc. VAT
Benefits Excellent weathering characteristics, including resistance to ozone, UV radiation and temperature extremes Joint movement capability +/- 50% Conforms to ISO 11600-F&G-25LM and also meets ISO specification 9047 class 50% Designed for general glazing, and weather sealing in curtain wall & building facades Colours Grey | Brown | Black | Anthracite | Bronze Buff | Limestone | Stone | Translucent | White Technical Information Where to use Exterior Paintable No Sizes 310 ml, 600ml Application method Sealant Gun and Cartridge Application Surface Preparation Ensure that surfaces to be sealed are clean, dry, sound and grease-free. Clean non-porous surfaces with DOWSIL™ R-40 Universal Cleaner, and dry thoroughly with a clean, lint-free cloth before application of sealant. Porous substrates such as concrete, brickwork, mortar etc. must be mechanically cleaned of loose particles using a steel brush, sanding disc or any similiar means. Application Instructions Apply sealant to the desired area using a sealant gun. Once finished, the joint should be tooled within 5 minutes of application to ensure good adhesion. For an extensive list of application methods, please consult the Technical Data Sheet. Clean up Excess sealant may be cleaned off tools and non-porous surfaces whilst in an uncured state using DOWSIL™ R-40 Universal Cleaner. If sealant is misapplied to porous substrates, it should be left until it is just cured and then removed by peeling, cutting or other mechanical means. Care should be taken not to damage plastic or coated surfaces.
Novaglaze 300 – Structural Glazing Tape – 9.5mm Thick (7.5m Rolls)
£18.00 inc. VAT
Colour Black / Grey (by special order) Tested to ASTM E96-2005 water vapour transmission to determine open cell airflow structure General characteristics value standard Characteristics Value Standard Density 300 kg/m³ --- Tensile Strength 500 kpa min DIN 53571 Elongation 150% min DIN 53571 Tear Strength 2.5 kg/cm min DIN 53515 Compression Set 10% max DIN 53572 Final Recovery 90-98% DIN 53572 Force to compress by 5% (to retain air permeability) 40N/CM² Water Absorption 8% by volume Cold Flexure -30°C pass 6 mm Madril Temperature Resistance -50°C to +60°C BS 2571 Thermal conductivity 0.19w/(m. K) or 0.16 kcal Shore Hardness 75-85 Shore 00 , 35 Shore A Resistance to Ageing Excellent Resistance to Chemicals - - Acid Good Mineral Oil Good Alcohol Good Alkalis Good Petrol Good Soap & Detergents Good Compression required to achieve a Positive waterseal 10% Adhesive Specification: OPEN FACE Construction Type Adhesive Pure high tack Acrylic 70 gsm Test Adhesive strength 1 minute 21N/25mm FINAT TM 1-adhesion 20 minutes 23N/25mm of polyester 50 um against 24 hours 25N/25mm stainless steel 1 kg Static Shear 25 mm x 25 mm 33 hrs Release 15 N/m Temperature Range -20°C to +90°C Adhesive Specification: CLOSED FACE Construction Type Adhesive Pure high tack Acrylic 50 gsm Technical Data Carrier: None Release Liner: Filmic Liner: 150 mic at sizes up to 8mm, 80 mic at 9.5mm and 12mm Adhesive: Pure acrylic Adhesive strength: 1 minute 14N/25mm (FINAT TM 1-adhesion of polyester 50 um against stainless steel): 20 minutes 16N/25mm 24 hours 21 N/ 25mm Resistance to chemicals: When correctly applied, resistant against most solvents, mineral oils, fuels, aliphatic solvents, dilute acids, salts and alkalis. Application temperature: >15°C Shelf life: 1 year (at 20°C and 50% relative humidity) Flammability This product is made up from PVC foam coated on both sides with an adhesive. It has not been tested for flammability but can be considered self- extinguishing due to the nature of the components. However, it should be noted that any smoke created would be highly toxic and would emit Hydrogen Cyanide gas during and after burning. Note All Technical data is based on average values. By nature of its manufacture, all foam specifications can vary by 10%. Statements, technical information and recommendations contained herein are based on tests we believe to be reliable. The user shall determine the suitability of the product for his/her intended use and the User assumes all risk and liability whatsoever in connection herewith. Products are manufactured to rigid standards of quality. To date no known failures have occurred due to the premature ageing of this product.
The installation kit contains the following components:
- DOWSIL™ 791 Weatherproofing Silicone Sealant
- Novaglaze 300 – Structural Glazing Tape – 9.5mm Thick (7.5m Rolls)