Sikasil® SG-20

Sikasil® SG-20

Sikasil® SG-20

Product catalog summary
Product Overview
Sikasil® SG-20 is a high-strength, one-component silicone adhesive designed for structural glazing. It is CE-marked and complies with EOTA ETAG 002 standards. The adhesive is moisture-curing and neutral in cure type, offering excellent adhesion to various substrates.

Specifications
  • Chemical Base: 1-component silicone
  • Color: Black, grey S6, white S3
  • Density: 1.36 kg/l
  • Application Temperature: 5 – 40 °C
  • Service Temperature: -40 – 150 °C
  • Shelf Life: 9 months (stored below 25 °C)

Performance Characteristics
  • Non-sag properties: Very good
  • Skin Time: 25 minutes
  • Tack Free Time: 180 minutes
  • Shore A Hardness: 39
  • Tensile Strength: 2.2 MPa
  • Elongation at Break: 450%
  • Tear Propagation Resistance: 7 N/mm

Product Benefits
  • Complies with multiple standards including EN 13022, ASTM C1184, and ASTM C920
  • Fire rated class B1 (DIN 4102-1)
  • Excellent UV and weathering resistance
  • Compatible with various materials such as glass, metals, and plastics
  • Meets VOC requirements for indoor air quality

Application Areas
Sikasil® SG-20 is suitable for structural glazing and other high-performance bonding applications. It is recommended for professional use, with tests required to ensure compatibility with specific substrates.

Cure Mechanism
The adhesive cures by reacting with atmospheric moisture, with curing speed affected by temperature and humidity levels.

Application Method
  • Surface Preparation: Ensure surfaces are clean, dry, and free from contaminants.
  • Application: Optimal temperature is between 15 °C and 25 °C. Can be applied using manual, pneumatic, or electric tools.
  • Tooling and Finishing: Must be done within the skin time for effective bonding.
  • Removal: Uncured adhesive can be removed with solvents; cured material requires mechanical removal.

Limitations
  • Not suitable for overpainting.
  • Compatibility with other materials must be verified by Sika.
  • Sequential application of different sealants requires complete curing of the first layer.

Health and Safety
Users must consult the Safety Data Sheets for safe handling and disposal instructions.

Disclaimer
The information provided is based on current knowledge and experience, with no warranty implied for specific applications. Users must verify product suitability for their specific needs.
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Catalog excerpts

Sikasil® SG-20-1

PRODUCT DATA SHEET High-strength, 1-component silicone structural glazing adhesive, CE-marked TYPICAL PRODUCT DATA (FURTHER VALUES SEE SAFETY DATA SHEET) CQP = Corporate Quality Procedure A) 23 °C / 50 % r. h. B) stored below 25 °C DESCRIPTION Sikasil® SG-20 is a 1-component, neutral-curing structural glazing silicone adhesive, which combines mechanical strength with high elongation. It is complying with EOTA ETAG 002 and provided with the CE-mark. It adheres excellent to a wide range of substrates. SEALANT-WATERPROOFING ! & RESTORATION INSTITUTE PRODUCT BENEFITS ■ Meets requirements of EOTA ETAG 002 (carries ETA), EN 13022, ASTM C1184, ASTM C920 for Type S, Grade NS, Class 25 (movement capability ± 25 %) ■ Structural sealant for structural sealant glazing systems according ETAG 002 Part 1, ETA-06/0090 issued by Technical Assessment Body Centre Scientifique et Technique du Batiment, Declaration of Performance 15323048 by notified product certification body 0757, certificate of constancy of performance 0757-CPR-596-7110760-4-6, provided with the CE marking ■ Design tensile strength for dynamic loads: odes = 0.17 MPa (ETA) ■ Fire rated class B1 (DIN 4102-1) ■ Outstanding UV and weathering resistance ■ Bonds excellent to glass, metals, coated metals, plastics and wood ■ SNJF-VEC recognzied (product code: 2436) ■ Complies with common VOC requirements: Indoor Air Comfort GOLD: pass, EMICODE: EC1 Plus, French VOC Regulation: A+, BREEAM International (v.6 2021)/BREEAM NOR (v.6 2022): Exemplary Level, M1: pass, Global LEED v4/v4.1 beta EQc 2: Low-Emitting Materials: CDPH-IAQ SCAQMDRule1168 AREAS OF APPLICATION Sikasil® SG-20 is ideal for structural glazing and other bonding applications where high mechanical performance with silicone is required. This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility. PRODUCT DATA SHEET Sikasil® SG-20 Version 09.01 (03 - 2023), en_GB 012603130209001000

 Open the catalog to page 1
Sikasil® SG-20-2

PACKAGING INFORMATION CURE MECHANISM Sikasil® SG-20 cures by reaction with atmospheric moisture. At low temperatures the water content of the air is generally lower and the curing reaction proceeds somewhat slower (see diagram 1). METHOD OF APPLICATION Surface Preparation Surfaces must be clean, dry and free from grease, oil and dust. Surface treatment depends on the specific nature of the substrates and is crucial for a long lasting bond. Application The optimum temperature for substrate and sealant is between 15 °C and 25 °C. Sikasil® SG-20 can be processed with manual, pneumatic or electric...

 Open the catalog to page 2

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