Product Profile of High-performance 2-part Silicone Sealants And Adhesives

McCoy Silicones Limited, an ISO 9001:2000 Certified Company manufactures High-Performance 2-Part Silicone Sealants and Adhesives, Sikasil SG-500. The High-Performance 2-Part Silicone Sealants and Adhesives are neutral, condensation-curing, elastic silicone adhesive with high mechanical strength and excellent adhesion to many construction materials such as glass and metal. The High-Performance 2-Part Silicone Sealants and Adhesives are professional silicone adhesive. These are specially designed for sealing, bonding and mending in construction applications. It is universally applicable for the structural bonding of façade elements. This High-Performance 2-Part Silicone Sealants and Adhesives are perfect for bonding glass and metal in structural glazing structures. The High-Performance 2-Part Silicone Sealants and Adhesives are available in black. The two parts component A [base compound] and component B [catalyst paste] must be mixed, and cure at room temperature to form an elastomer.
The characteristics and advantages of the High-Performance 2-Part Silicone Sealants and Adhesives are:

• Non-sag

• Neutral curing system: odorless

• Ready gunnability at low [+5°C] and high [+40°C] temperatures

• Free of abrasive fillers

• External quality control Very low shrinkage on curing

• After cure: elastic at low [-40°C] and high [+150°C] temperatures

• Excellent resistance to water and the effects of moisture

• Excellent UV- and weathering resistance

• Highly load-resistant

• Abrasion resistant

• Not corrosive to metals and many plastics

• Compatible with PVB layer of safety glasses

• Long shelf-life: simplified stock keeping

• Excellent adhesion on most float, tinted and coated glasses and to plastic and metal spacers

• Compatible with alkaline materials, such as concrete, fibrous cement, etc.
Packaging Component

• A: 200 l drum: 260 kg, 187.1 litres

• Component B: 20 l pail: 20 kg, 18.5 litres
The technical details of the High-Performance 2-Part Silicone Sealants and Adhesives are:

• Movement Capability
Cured rubber [after 2 weeks at +23°C / 50% r.H.] ± 12.5% [ISO 9047] 25% [ASTM C920]

• Density
Unmixed Components A [base compound] and B [catalyst paste] 1.39 kg/l [Comp. A] [ISO 1183-B] 1.08 kg/l [Comp. B]

• Sag Flow
Uncured compound: mixture of base compound and catalyst paste in weight ratio 13: 1 or volume ratio 10: 1 Non-sag [ISO 7390-A + B -20 x 10 mm]

• Extrusion Rate
Uncured mixture of base compound and catalyst paste in weight ratio 13: 1 or volume ratio 10: 1 8 ml/10 s at +23°C [3 mm nozzle, p = 0.21 N/mm2] 10 minutes after mixing

• Tack-free Time
Uncured mixture of base compound and catalyst paste in weight ratio 13: 1 or volume ratio 10: 1 120 minutes

• Water Vapor Diffusion
Cured rubber [after 2 weeks at +23°C / 50% r.H.] 15 g m-2 d-1 [2.2 mm film] [DIN 53122-A]

• Service Temperature
Cured rubber [after 2 weeks at +23°C / 50% r.H.]-40°C to +150°C

• Viscosity
Unmixed components A [base compound] and B [catalyst paste] 1`100`000 mPas [Comp. A] [+23°C / D = 0.85 s-1] 150`000 mPas [Comp. B] [+23°C / D = 0.85 s-1] The High-Performance 2-Part Silicone Sealants and Adhesives have the following Mechanical Properties:

• Tear Strength
Cured rubber [after 2 weeks at +23°C / 50% r.H.] 6.0 N/mm [ISO 34-C]

• Shore A Hardness
Cured rubber [after 2 weeks at +23°C / 50% r.H.] 44 [ISO 868] Uncured mixture of base compound and catalyst paste in weight ratio 13: 1 or volume ratio 10: 1