McCoy Silicones Limited offers High Performance Neutral 1-Part Silicone Sealant Sikasil WS-355. McCoy Silicones Limited is an ISO 9001:2000 Certified Company. The High Performance Neutral 1-Part Silicone Sealant is moisture curing, elastic joint sealant based on silicone. The High Performance Neutral 1-Part Silicone Sealant is suitable for jointing natural stone, such as marble, granite, sandstone and quartzite. This High Performance Neutral 1-Part Silicone Sealant is also perfect for sealing facades, e.g. cladding of natural stone or other materials. The characteristics and advantages of the High Performance Neutral 1-Part Silicone Sealant are as follows:

Neutral curing system

Ready to use

Non-staining and non-bleeding: no staining of the joint area by plasticizer

Compatible with water-based and solvent-based paints: no migration of plasticizer

Bonds to many materials without primer

Not corrosive to metals

Matt surface suitable for use on alkaline substrates such as concrete and mortar

Solvent less

Non-sag

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

Rapid curing: quickly becomes tack free

Low shrinkage on cure

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

Outstanding UV and weathering resistance

Compatible with natural stone such as marble, granite, sandstone and quartzite: no discoloration of the stone

The Packaging ranges of the High Performance Neutral 1-Part Silicone Sealant are:

300 ml cartridges, 25 cartridges per box

310 ml cartridges, 25 cartridges per box

600 ml sausages, 20 sausages per box

The High Performance Neutral 1-Part Silicone Sealant has the following technical data Mechanical Properties Tear Strength 4.0 N/mm after 4 weeks [+23?C / 50% r.h.] [ISO 34-C] Chemical Base 1-part silicone, moisture curing Density 1.49 kg/l [ISO 1183-B] Skinning Time 20 minutes [+23?C / 50% r.h.] Tack-free Time 120 minutes [+23?C / 50% r.h.] Curing Rate 4 mm / 24 h [+23?C / 50% r.h.] Movement Capability ? 25% [ISO 11600] ? 50% [ASTM C920] E-Modulus 0.31 N/mm2 at 100% elongation after 4 weeks [+23?C / 50% r.h.] [ISO 37, rod S2] 0.28 N/mm2 at 100% elongation after 4 weeks [+23?C / 50% r.h.] [ISO 8339-A] Joint Dimensions 6 mm min. width / 40 mm max. Width Sag Flow Non-sag [ISO 7390, Profile U20]Service Temperature -40?C to +150?C [after vulcanisation] Elongation at Break 800 % after 4 weeks [+23?C / 50% r.h.] [ISO 37, rod S2] 450% after 4 weeks [+23?C / 50% r.h.] [ISO 8339-A] Shore A Hardness 20 after 4 weeks [+23?C / 50% r.h.] [ISO 868] Tensile Strength 0.88 N/mm2 after 4 weeks [+23?C / 50% r.h.] [ISO 37, rod S2] 0.47 N/mm2 after 4 weeks [+23?C / 50% r.h.] [ISO 8339-A]