Ritetack Xtra vs Sikaflex 118
Ritetack Xtra vs Sikaflex 118: Which High-Tack Adhesive Makes More Sense?
Ritetack Xtra is the smarter pick for trade users who want high-performance grab without adding unnecessary complexity to the job. Sikaflex 118 Extreme Grab is a capable high-tack adhesive, but Ritetack Xtra makes the stronger everyday case with up to 1200 kg/m² horizontal hold, a cleaner formulation story, faster skin time, higher top-end temperature resistance and a simpler decision path on site.
Ritetack Xtra and Sikaflex 118 Extreme Grab are both serious high-tack construction adhesives. On paper, they sit in a similar performance category. In practice, Ritetack Xtra stands out for being the simpler, cleaner and easier-to-specify option.
Sikaflex 118 is clearly a capable product. It is made for internal and external use, offers very high initial grab, and is suitable for a broad range of construction materials including concrete, masonry, stone, wood, metals and glass. For many users, it will do the job well.
But for Australian trades, shopfitters, builders and fitout teams, the better question is not just “Will it stick?” It is “Which adhesive helps the job move faster with fewer caveats?”
Quick rule: Sikaflex 118 is strong and versatile, but it asks the installer to think harder about fixings, support, natural stone and surface preparation. Ritetack Xtra gives you excellent grab with a cleaner, simpler site story.
Ritetack Xtra vs Sikaflex 118: the quick verdict
Ritetack Xtra
Best fit: trade users who want excellent high-tack performance with a simpler, cleaner and easier-to-standardise adhesive.
It offers up to 1200 kg/m² horizontal hold, 2.20 N/mm² tensile strength, 400% elongation at break, a 10-minute skin time and temperature resistance from -40°C to +90°C.
Sikaflex 118 Extreme Grab
Best fit: users who want a capable high-tack adhesive and are comfortable working through the product’s application guidance.
It offers very high initial grab and broad material compatibility, but has more caveats around overhead applications, very heavy components, natural stone and surface pre-treatment.
Ritetack Xtra competes strongly in the same high-tack space, but with a cleaner site proposition. Its hybrid formulation is non-staining, almost odourless and free from isocyanates, phthalates, solvents and silicones.
It also offers practical performance numbers that matter to trade users: 2.20 N/mm² tensile strength, 400% elongation at break, a 10-minute skin time, and temperature resistance from -40°C to +90°C. Just as importantly, its TDS positions support during curing as usually unnecessary due to its high initial strength, depending on application and correct use.
Best practical choice: Ritetack Xtra gives installers the performance they expect from a high-tack adhesive, while making product selection and site use feel more straightforward.
Side-by-side comparison
| Feature | Ritetack Xtra | Sikaflex 118 Extreme Grab |
|---|---|---|
| Smarter everyday trade choice | ✓ Yes — simpler, cleaner and easier to specify | ✕ More caveats to work through on site |
| Up to 1200 kg/m² horizontal hold | ✓ Yes — strong heavy-duty positioning | ✕ No comparable headline horizontal hold claim in the TDS |
| Very high initial grab | ✓ Yes — extreme high initial tack | ✓ Yes — very high initial grab |
| Tensile strength | ✓ 2.20 N/mm² | • Approx. 2.2 N/mm² |
| Elongation at break | ✓ 400% | ✕ Approx. 350% |
| Skin time | ✓ Approx. 10 minutes | ✕ Approx. 15 minutes |
| Temperature resistance | ✓ -40°C to +90°C | ✕ -40°C to +80°C |
| Support during curing | ✓ Usually unnecessary due to high initial strength, application dependent | ✕ Temporary support advised where necessary, including very heavy components |
| Overhead or heavy items | ✓ Simpler high-grab site proposition | ✕ TDS says to use mechanical fixings for overhead applications or heavy items |
| Natural stone confidence | ✓ Promoted for stone materials | ✕ TDS says to contact Sika Technical Service before using on natural stone |
| Cleaner formulation story | ✓ Non-staining, almost odourless and free from isocyanates, phthalates, solvents and silicones | • Very low emissions, but fewer clear formulation call-outs in comparison |
| Primer and pre-treatment simplicity | ✓ More straightforward everyday positioning | ✕ TDS includes primer and pre-treatment procedures depending on substrate type |
| Best fit for standardising across teams | ✓ Strong, clean and easier to roll out across repeat jobs | ✕ Capable, but more conditional for mixed site applications |
Note: Always follow the relevant TDS/SDS and test first for critical applications, unusual substrates, overhead work or high-risk installations.
Where Sikaflex 118 performs well
Sikaflex 118 Extreme Grab is a capable adhesive. It is designed for internal and external use and bonds a broad range of construction materials, including concrete, masonry, most stones, ceramic, wood, metals, glass and mirrors.
It also offers very high initial grab, good workability and low-emissions positioning. For many standard high-tack bonding jobs, it can perform well.
Fair comparison: Sikaflex 118 is not weak. It is a strong, credible product. The difference is that Ritetack Xtra gives trade users a simpler and cleaner decision path.
Where Ritetack Xtra has the advantage
Ritetack Xtra has the advantage because it combines strong high-tack performance with a more practical site story.
Its standout benefits include up to 1200 kg/m² horizontal hold, extreme high initial tack, 2.20 N/mm² tensile strength, 400% elongation at break, a 10-minute skin time and temperature resistance from -40°C to +90°C.
It is also non-staining, almost odourless and free from isocyanates, phthalates, solvents and silicones. Those details matter when adhesives are used repeatedly across fitout, renovation, panel, stone and general construction work.
Why that matters on site: strong grab gets attention, but simpler application, fewer caveats and cleaner handling are what make an adhesive easier to trust across repeat jobs.
Why application caveats matter
This is where the comparison becomes more practical.
Sikaflex 118 has strong performance credentials, but its TDS also includes important application considerations. Mechanical fixings should always be used for overhead applications or heavy items. Very heavy components should be temporarily supported until the adhesive has fully cured. Before using it on natural stone, users are advised to contact Sika Technical Service.
Surface preparation can also involve primers and pre-treatment depending on the substrate type. For critical or high-performance applications, those steps make sense, but they also add more decisions for the installer.
Ritetack Xtra is positioned more simply. It is a high-tack, high-strength adhesive where support during curing is usually unnecessary due to high initial strength, when applied correctly and used within the right application conditions.
Why Ritetack Xtra makes more sense
For trade users, a good adhesive is not just about raw technical capability. It is about how confidently a team can choose it, apply it and move on with the job.
Ritetack Xtra makes more sense because it offers the high-performance grab expected from a premium construction adhesive without forcing the installer through as many application caveats.
That makes it especially useful for builders, shopfitters, installers, signage teams and fitout crews who want one adhesive that can handle a wide range of common trade tasks without slowing the job down.
The smarter pick: Ritetack Xtra
Ritetack Xtra is the better choice for trade users who want high-tack performance with less complexity. Sikaflex 118 is strong and versatile, but Ritetack Xtra offers a cleaner formulation story, faster skin time, higher top-end temperature resistance, strong horizontal hold and a simpler everyday site proposition.
So, which one should you choose?
Choose Sikaflex 118 Extreme Grab if you already use it confidently and are comfortable working through its technical guidance for fixings, support, surface preparation and substrate checks.
Choose Ritetack Xtra if you want a high-performance adhesive with excellent grab, reliable trade performance and a simpler decision path.
For Australian trades and fitout teams that want strong bonding without unnecessary complexity, Ritetack Xtra is the smarter pick.
FAQs
Is Ritetack Xtra better than Sikaflex 118?
For users who want high-tack performance with a simpler site story, yes. Ritetack Xtra is the better choice because it combines strong hold, clean formulation benefits, faster skin time, higher top-end temperature resistance and easier everyday selection.
Is Sikaflex 118 still a good adhesive?
Yes. Sikaflex 118 Extreme Grab is a capable high-tack construction adhesive for internal and external use. It offers very high initial grab and broad material compatibility, but it carries more application considerations than Ritetack Xtra.
Which adhesive is simpler to use on site?
Ritetack Xtra is the simpler choice for many everyday trade applications because it is positioned as a high-tack, high-strength adhesive where support during curing is usually unnecessary when applied correctly.
Which product is better for natural stone?
Ritetack Xtra is the stronger choice in this comparison because it is promoted for stone materials. Sikaflex 118 advises users to contact Sika Technical Service before using it on natural stone.
Does Sikaflex 118 need mechanical fixings?
According to its TDS, Sikaflex 118 should always be used with mechanical fixings for overhead applications or heavy items, and very heavy components should be supported until fully cured.
Need high-tack performance without the extra complexity?
Ritetack Xtra delivers up to 1200 kg/m² horizontal hold, extreme high initial tack, clean handling and broad trade versatility for construction, fitout, panel and stone bonding work.