Fosroc vs Sika:Which is more popular?
In September 2026, Sika had more branded searches than Fosroc among construction chemical brands in New Zealand. Sika had about 2,030 branded searches, while Fosroc had 140. Sika made up 44.9% of all construction chemical brand searches we track, and Fosroc accounted for 3.1%. When we asked ChatGPT and Google AI Overviews about construction chemical brands, Sika appeared in all four answers and Fosroc in three. Sika was mentioned before Fosroc in every answer.
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Top construction chemical brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and one Google AI Overview, Sika appeared in all four answers. Fosroc was mentioned in three out of four: in two of the three ChatGPT answers and in the Google AI Overview. Sika was listed before Fosroc in every answer.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Sika4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
Mapei4 of 4Named in 3 of 3 ChatGPT answersNamed in 1 of 1 Google answers
Ardex3 of 4Named in 3 of 3 ChatGPT answersNamed in 0 of 1 Google answers
Fosroc3 of 4Named in 2 of 3 ChatGPT answersNamed in 1 of 1 Google answers
Rockbond2 of 4Named in 1 of 3 ChatGPT answersNamed in 1 of 1 Google answers
Bostik1 of 4Named in 1 of 3 ChatGPT answersNamed in 0 of 1 Google answers
Soudal0 of 4Named in 0 of 3 ChatGPT answersNamed in 0 of 1 Google answers
See every answer about construction chemical brands
4 answers
Asked ChatGPT
“Which construction chemical brand should I buy in New Zealand?”
Asked ChatGPT
“What are the best construction chemical brands in New Zealand?”
Asked ChatGPT
“What's the best construction chemical brand in New Zealand for waterproofing jobs?”
Searched Google, AI Overview
“construction chemical brands”
Searched Google, AI Overview
“construction adhesives nz”
Google showed no AI Overview for this search.
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Is Fosroc or Sika more popular in search?
This chart shows how often people search Google for Fosroc and Sika by name. Each line represents a brand's share of searches for all seven construction chemical brands we track, month by month, from searches in New Zealand.
Share of searches by month for Sika, Fosroc. The figures are in the table below the chart.
View monthly share of searches table
| Month | Sika | Ardex | Mapei | Soudal | Bostik | Rockbond | Fosroc |
|---|---|---|---|---|---|---|---|
| Oct 2025 | 38.7% | 17.4% | 14.3% | 11.6% | 9.4% | 5.1% | 3.4% |
| Nov 2025 | 45.6% | 16.2% | 10.8% | 10.8% | 8.8% | 4.7% | 3.1% |
| Dec 2025 | 48.5% | 14.5% | 11.8% | 7.9% | 9.7% | 4.2% | 3.3% |
| Jan 2026 | 46.4% | 16.9% | 11.2% | 9.2% | 9.2% | 4% | 3.2% |
| Feb 2026 | 45.2% | 16.4% | 13.4% | 8.9% | 8.9% | 4.8% | 2.5% |
| Mar 2026 | 47.2% | 18% | 9.8% | 9.8% | 8% | 4.3% | 2.9% |
| Apr 2026 | 45% | 17.1% | 11.4% | 11.4% | 7.6% | 4% | 3.3% |
| May 2026 | 46.1% | 15.2% | 10.1% | 10.1% | 10.1% | 5.5% | 2.9% |
| Jun 2026 | 43.5% | 15.5% | 12.7% | 10.3% | 10.3% | 4.5% | 3% |
| Jul 2026 | 44% | 16.3% | 10.8% | 10.8% | 10.8% | 4.7% | 2.5% |
| Aug 2026 | 45.6% | 13.5% | 11% | 11% | 11% | 3.9% | 3.9% |
| Sep 2026 | 44.9% | 15.9% | 13.1% | 10.6% | 8.6% | 3.8% | 3.1% |
How has the Fosroc and Sika comparison changed over the last 12 months?
3 findings
- Sika was ahead of Fosroc in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Fosroc’s share of searches among construction chemical brands in New Zealand moved from 3.4% to 3.1%, and its estimated monthly branded searches held steady at 140.
- Across the 12 months ending September 2026, Sika’s share of searches among construction chemical brands in New Zealand moved from 38.7% to 44.9%, and its estimated monthly branded searches moved from 1.6K to 2K.
How did search popularity change for New Zealand construction chemical brands in September 2026?
2 changes
In September 2026, Fosroc lost share of searches among construction chemical brands in New Zealand, from 3.9% to 3.1%.
In September 2026, Sika lost share of searches among construction chemical brands in New Zealand, from 45.6% to 44.9%.
How are branded searches counted?
16 search terms
Brandwave collects information about searches that people make online using Fosroc’s and Sika’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
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