Sikasil Sg-500 S High-Performance 2-Component Silicone Structural Glazing Adhesive

• Bonding Function: Instant Adhesive
• Morphology: Solvent
• Application: Automobile, Construction, Woodworking, Footwear & Leather, Fiber & Garment, Packing
• Material: Silicone
• Classification: Room Curing
• Main Agent Composition: Rubber
• Model NO.: Sikasil SG-500 S
• Characteristic: Weatherability
• Promoter Composition: Curing Agent
• Composition: Organic Material
• Color: White Gray Black
• Transport Package: Carton
• Specification: 1.37 kg/l 1.01 kg/l mixed1.34 kg/l
• Trademark: Sika
• Production Capacity: 500000/Year

Product Description

Product Description

Sikasil® SG-500 S is a 2-component, high modulus, neutral curing structural silicone adhesive. This product is designed to be used in structural glazing applications.  

 

PRODUCT BENEFITS

• Meets requirements of GB 16776, ASTM C 1184 and ASTM C 920 (class 25, movement capability ± 25 %)

• Design tensile strength for dynamic loads:

   σ_des = 0.14 MPa or 20 psi (ASTM)
• Adheres well to a wide range of substrates
• Very good UV and weathering resistance
• Good long term durability
• Complies with common VOC requirements:
  Global LEED v4/v4.1 beta EQc 2: Low-Emitting Materials: CDPH-IAQ SCAQMD Rule1168

Technical Data

Properties

Sikasil® SG-500 S (A)

Sikasil® SG-500 S (B)

 

 

Chemical base

2-component silicone

Color (CQP001-1)

 

mixed

 

 

White	Black
Black

 

 

 

Cure mechanism

Polycondensation

Cure type

Neutral

Density (uncured)

 

mixed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.37 kg/l	1.01 kg/l
1.34 kg/l

 

 

 

 

 

 

 

 

 

 

 

 

Mixing ratio

A : B by volume
A : B by weight

 

 

 

 

 

10 : 1
13 : 1

 

 

 

 

 

Viscosity (CQP029-6)

180 Pa·s

150 Pa·s

 

 

Consistency

Paste

Application temperature

ambient

 

5 - 40 °C

 

 

Snap time (CQP554-1)

 

 

 

 

 

 

 

45 minutes ^A

 

 

 

 

 

 

Tack free time (CQP019-3)

100 minutes ^A

 

 

 

Shore A hardness (CQP023-1 / ISO 48-4)

35

 

 

Tensile strength (CQP036-1 / ISO 527)

1.9 MPa

 

 

 

 

 

 

100 % modulus (CQP036-1 / ISO 527)

0.9 MPa

 

 

 

 

 

Elongation at break (CQP036-1 / ISO 527)

300 %

 

 

 

 

 

Tear propagation resistance (CQP045-1 / ISO 34)

2.5 N/mm

 

 

 

 

Service temperature (CQP513-1)

-40 - 150 °C

Shelf life

15 months ^B

12 months ^B

 

 

CQP = Corporate Quality Procedure

^A)23 °C / 50 % r. h.

^B) storage below 25 °C

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.

Before processing Sikasil® SG-500 S both components have to be mixed homogeneously and air-bubble-free in the correct ratio as indicated with an accuracy of ± 10 %. Most commercially available metering and mixing equipment are suitable. For advice on selecting and setting up a suitable pump system, contact the System Engineering Department of Sika Industry.
Consider that the B-component is moisture sensitive and must therefore only be exposed briefly to air.
Joints must be properly dimensioned.

Basis for calculation of the necessary joint dimensions are the technical values of the adhesive and the adjacent building materials, the exposure of the building elements, their construction and size as well as external loads.

Tooling and finishing

Tooling and finishing must be carried out within the snap time of the adhesive. When tooling freshly applied Sikasil® SG-500 S, press the adhesive to the joint flanks to get a good wetting of the bonding surface. No tooling agents to be used.

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