Product Profile of High Performance 1-part Silicone Sealants And Adhesives

McCoy Silicones Limited, an ISO 9001:2000 Certified Company offers High Performance 1-Part Silicone Sealants and Adhesives, Sikasil SG-18. The High Performance 1-Part Silicone Sealants and Adhesives are neutral, 1-part, moisture, elastic joint sealant based on silicone. These are provided with high mechanical strength. The High Performance 1-Part Silicone Sealants and Adhesives are mainly designed for sealing, bonding and mending in construction applications. These are universally applicable for the structural bonding of façade elements. This High Performance 1-Part Silicone Sealants and Adhesives are mostly appropriate for bonding glass and metal in structural glazing. The High Performance 1-Part Silicone Sealants and Adhesives can be readily processed with commercial cartridge or sausage bag guns, or applied by machine from a drum or bucket. The features of the High Performance 1-Part Silicone Sealants and Adhesives are as follows:

• Solvent less

• Non-sag

• Neutral curing system

• Ready to use

• Rapid curing: quickly becomes tack-free

• Low shrinkage on curing

• Excellent resistance to weather and UV

• Not corrosive to metals

• High mechanical strength

• Free of abrasive fillers

• Excellent adhesion without primer to a variety of substrates, such as glass, coated glass, anodized aluminum, stainless steel, concrete, enamel, many plastics and many powder paints

• Excellent resistance to water and the effects of moisture

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

• Ready gunnability at low [+5°C] and high [+40°C] temperatures
Packaging ranges of the High Performance 1-Part Silicone Sealants and Adhesives are:

• 300 ml cartridges, 25 cartridges per box

• 20 litre pails: 25 kg, 16.9 litres

• 600 ml sausages, 20 sausages per box

• 310 ml cartridges, 25 cartridges per box

• 200 litre drums: 250 kg, 169 litres
The technical specifications of the High Performance 1-Part Silicone Sealants and Adhesives are:

• Skinning Time: 30 minutes [+23°C / 50% r.H.]

• Tack-free Time: 90 minutes

• Chemical Base: 1-part silicone, moisture curing Density: 1.48 kg/l [ISO 1183-B]

• Extrusion Rate: 200 g/ min [3 mm metal nozzle at 6.3 bar]

• Movement Capability ± 12.5% [ISO 9047] 25% [ASTM C920]

• Joint Dimensions:
6 mm min. Bite / 15 mm max. Bite 6 mm min. Width / 12 mm max. Width

• Sag Flow: Non-sag [ISO 7390, Profile U20]

• Service Temperature: -40°C to +150°C [after vulcanisation]

• Curing Rate:
3.9 mm / 24 h [+23°C / 50% r.H.] 6.2 mm / 72 h [+23°C / 50% r.H.] The mechanical properties of the High Performance 1-Part Silicone Sealants and Adhesives are:

• E-Modulus
After 4 weeks [+23°C / 50% r.H.] 1.21 N/mm2 at 100% elongation [ISO 37, rod S2] 0.81 N/mm2 at 50% elongation [ISO 8339-A] 0.48 N/mm2 at 25% elongation [ISO 8339-A]

• Tensile Strength
After 4 weeks [+23°C / 50% r.H.] 1.85 N/mm2 [ISO 37, rod S2] 1.06 N/mm2 [ISO 8339-A]

• Elongation at Break
After 4 weeks [+23°C / 50% r.H.] 320% [ISO 37, rod S2] 80% [ISO 8339-A]

• Tear Strength 6.0 N/mm2 after 4 weeks [+23°C / 50% r.H.] [ISO 34-C]

• Shore Hardness 44 after 4 weeks [+23°C / 50% r.H.] [ISO 868]