Sikaflex®-118 Extreme Grab is a 1- part construction adhesive with very high initial grab which bonds most construction material substrates.

Construction Adhesive for Mounting without Temporary Fixation

Sikaflex-118 entreme grab

Time is money. In order to save time on construction sites, adhesives are used which offer a broad adhesion range and high initial grab, making screws and nails redundant  Sikaflex®-118 Extreme Grab is Sika’s answer to this need.

Based on Sika’s own Silane Terminated Polymer (STP)  technology, this product shows excellent adhesion performance on common construction materials. No, or only minimal pretreatment is used in order to guarantee long-term adhesion. Additionally, due to its high initial strength, no temporary fixation is required. This effect is also called initial grab and it allows keeping bonded pieces in place in the uncured state.

The initial strength - or initial grab is generally achieved by increasing the viscosity of the product. Unfortunately, this results in hard-to-extrude products. Sika’s innovative approach was to keep the extrusion force in a range where it can still be applied with a common application gun, but still achieve very high initial grab “Extreme Grab” (very low shift over time, see diagram below). This was achieved by a tailored combination of low-viscous additives and specially selected thixotropic agents. The result is a best-in-class initial grab adhesive with a reasonable extrusion force. The first product with these features is the new Sikaflex®-118 Extreme Grab.

Figure 1: The rheological creep test shows that the drift after 120 seconds of Sikaflex®-118 is still moderate, whereas others materials collapse.
Image: Figure 1: The rheological creep test shows that the drift after 120 seconds of Sikaflex®-118 is still moderate, whereas others materials collapse.
Figure 2: Gunability vs. Grab of Sikaflex®-118 Extreme Grab and Competitor Products.
Image: Figure 2: Gunability vs. Grab of Sikaflex®-118 Extreme Grab and Competitor Products.

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Uses

An adhesive to bond most construction components and materials such as:

  • Concrete
  • Masonry
  • Most stones
  • Ceramic
  • Wood
  • Metals
  • Glass
  • Mirrors