SikaHyflex-305 EU white C295 | MCT CHEMICALS | SIKA PAKISTAN

Description SikaHyflex®-305 EU Weather Sealant for Curtain Walls and Metal Cladding Facades DESCRIPTION SikaHyflex®-305 EU is a one-component, moisture-curing, low-modulus elastic weather sealant. It is specifically designed for use in hot and tropical climates. USES SikaHyflex®-305 EU is intended for weatherproofing and sealing applications where long-lasting performance in harsh conditions is necessary. It is especially suitable as a weather sealant for curtain walls and metal cladding facades. CHARACTERISTICS / ADVANTAGES Exceptional resistance to weathering Movement capability of ±50% (ASTM C 719) Excellent workability Strong adhesion to a wide range of substrates Solvent-free formula Neutral curing process SUSTAINABILITY Certified as “Low Emitting Materials” according to the Al Sa’fat – Dubai Green Building Evaluation System by Dubai Central Laboratory (DCL), certificate No. CL18020589 EMICODE EC1 PLUS R LEED v4 EQc 2: Low-Emitting Materials APPROVALS / CERTIFICATES EN 15651-1 F EXT-INT CC 25 LM EN 15651-2 G CC 25 LM ASTM C 920, Class 50 ISO 11600 F 25 LM & G 25 LM DIN 18540 F PRODUCT INFORMATION Composition: Neutral-cure silicone Packaging: 300 ml cartridge (25 cartridges per box), 600 ml foil pack (20 foil packs per box) Color Options: Black, white, grey S1, grey S3, grey S4, grey S6, RAL 7024, ivory, beige, champagne, brown, bronze Shelf Life: 12 months for cartridges, 15 months for foil packs (when stored in original, sealed packaging under proper conditions) Storage Conditions: Store in a dry area, protected from direct sunlight, and at temperatures between 5°C and 25°C. Density: ~1.50 kg/l (ISO 1183-1) TECHNICAL INFORMATION Shore A Hardness (after 28 days): ~25 (ISO 868) Secant Tensile Modulus at 100% Elongation (23°C): ~0.35 N/mm² (ISO 8339) Tensile Strain at Break: ~900% (ISO 37) Elastic Recovery: ~80% (ISO 7389) Tear Propagation Resistance: ~4.0 N/mm (ISO 34) Movement Capability: ±25% (ISO 9047), ±50% (ASTM C 719) Weathering Resistance: 10 (ISO / DIS 19862) Service Temperature: −40°C to 150°C JOINT DESIGN Joint width: ≥ 6 mm and ≤ 45 mm Joint depth: ≥ 6 mm and ≤ 15 mm Maintain a width-to-depth ratio of 2:1 Example Joint Dimensions: Joint Width 10 mm, Joint Depth 6 mm Joint Width 15 mm, Joint Depth 8 mm Joint Width 20 mm, Joint Depth 10 mm Joint Width 30 mm, Joint Depth 15 mm Joint Width 45 mm, Joint Depth 15 mm COMPATIBILITY SikaHyflex®-305 EU is compatible with most SikaHyflex® and Sikasil® silicone weather sealants, Sikasil® SG adhesives, and Sikasil® IG sealants. Contact Sika technical service for approval before using other sealants and adhesives in direct contact with SikaHyflex®-305 EU. APPLICATION INFORMATION Consumption: 10 mm joint width, 10 mm depth: 6 m per 600 ml foil pack 15 mm joint width, 8 mm depth: 5 m per 600 ml foil pack 20 mm joint width, 10 mm depth: 3 m per 600 ml foil pack 25 mm joint width, 12 mm depth: 2 m per 600 ml foil pack 30 mm joint width, 15 mm depth: 1.3 m per 600 ml foil pack Backing Material: Use closed-cell polyethylene foam backing rods. Sag Flow: ~0 mm (20 mm profile, 50°C) (ISO 7390) Ambient Temperature: 5°C to 40°C, minimum 3°C above dew point Substrate Temperature: 5°C to 40°C