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SikaLastomer® IG-105

Thermoplastic primary sealant for insulating glass

SikaLastomer® IG-105 is a 1-component, solvent-free, thermoplastic primary seal for dual-seal insulating glass units based on polyisobutylene (PIB, butyl).  

  • Low water vapor transmission and argon permeation
  • Good adhesion to most glass and spacer materials
  • Good UV resistance
  • No shrinkage
  • Thermal conductivity = 0.2 W/m K (EN 10077-2)
 
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PRODUCT BENEFITS

  • Low water vapor transmission and argon permeation
  • Good adhesion to most glass and spacer materials
  • Good UV resistance
  • No shrinkage
  • Thermal conductivity = 0.2 W/m K (EN 10077-2)
 

Areas of Application

SikaLastomer® IG-105 is used as primary seal in the production of dual-seal insulating glass units. It has been tested against EN 1279-4. 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 Details

Typical Product Data
Chemical base

Polyisobutylene

Color (CQP001-1)

Black

Density (uncured)

1.1 kg/l

Solid content

99 %

Application temperature

product

120 ─ 150 °C

Penetration (ISO 2137)

60 °C

60 [0.1 mm]

Water vapor transmission rate WVTR (EN 1279-4)

0.1 g / (m2·d)

Gas permeation rate GPR (EN 1279-4)

2·10-3 g / (m2·h)

Service temperature

-40 ─ 80 °C

Shelf life

12 months A

CQP = Corporate Quality Procedure

A) stored below 25 °C
Technical Information

CURE MECHANISM

SikaLastomer® IG-105 is a non-reactive polyisobutylene and stays paste-like and viscoelastic.

Application

Application Information

Surface preparation

Surfaces must be clean, dry and free from grease, oil and dust.

Application

SikaLastomer® IG-105 must be heated-up to the required application temperature before being applied by the extruder. Preliminary application tests to set up the equipment are mandatory.

SikaLastomer® IG-105 must be applied with the same amount on both sides of the spacer. It is recommended to apply 2.8 ± 0.3 g per linear meter on each side of the spacer.

SikaLastomer® IG-105 bead on the spacer must be continuous without interruptions on the whole perimeter of the spacer.

Removal

SikaLastomer® IG-105 may be removed from tools and equipment with Sika® Remover-208 or another suitable solvent.
Hands and exposed skin have to be washed immediately using hand wipes such as Sika® Cleaner-350H or a suitable industrial hand cleaner and water.

Do not use solvents on skin.

 

Application limits

Recommended solution from Sika for insulating glass production are usually compatible to each other. These solutions consist of products such as Sikasil® SG, IG, WS and WT series. For specific information regarding compatibility between SikaLastomer® IG-105 and other Sika products contact the Technical Department of Sika Industry.
To exclude materials influencing SikaLastomer® IG-105, all materials such as gaskets, tapes, setting blocks, sealants, etc., in direct and indirect contact have to be approved by Sika in advance.