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Fischer FIS VS PLUS Low Speed 300 T – Chemical Anchor for Demanding Conditions (300 ml, T-Cartridge)
5
Description
Fischer FIS VS PLUS Low Speed 300 T – chemical anchor for demanding conditions
Working on site in high temperatures is a special challenge. When the thermometer exceeds 30 °C, most standard chemical mortars cure too quickly. The result? Difficulty correctly setting rods, stress related to the working time, and a higher risk of installation errors. Fischer FIS VS PLUS Low Speed 300 T was developed precisely to solve this problem. Thanks to its extended curing time, it allows calm, precise installation even in full sun.
Why choose this mortar?
The key advantage of the Low Speed version is the extended working time. In practice, this means that even on hot days you have enough time to prepare the hole, fill it with mortar, and set the rod without rushing. This significantly reduces the risk of mistakes and increases installation safety.
The Fischer chemical anchor also stands out for its universal application. It can be used in cracked and uncracked concrete, in masonry made of solid or hollow bricks, and in aerated concrete. As a result, one product works in many installation scenarios. Importantly, it holds a full set of European ETA approvals confirming its reliability in concrete, masonry, and for post-installed rebar.
Professionals also value FIS VS PLUS Low Speed for its high load capacity and consistent performance. It’s a solution that ensures the fastening will withstand the specified loads and that the investment will be safe and durable.
Practical applications
FIS VS PLUS Low Speed 300 T is a versatile injection mortar. It is used for installing threaded rods, internally threaded anchors, and reinforcing bars in various base materials. It is perfect for fixing steel structures, machines, balustrades, handrails, brackets, as well as installation components. If installation takes place in summer, this mortar version ensures the process runs smoothly regardless of the ambient temperature.
Certificates and approvals
ETA-20/0603 – for cracked concrete (Option 1; also covers uncracked concrete).
ETA-20/0728 – for post-installed rebar connections.
ETA-20/0729 – for applications in masonry (categories b, c, d – in line with the ETA scope).
The Low Speed variant refers to extended working time; approvals are shared across the entire FIS VS Plus family. This means you can be confident the product meets the highest safety and quality standards required in professional construction.
Working and curing times
The Low Speed variant differs from standard mortars primarily in curing time. This is what provides the advantage for installation in high temperatures:
| Base material temperature | Working time (twork) | Curing time (tcure) |
|---|---|---|
| > −5 °C to 0 °C | — | 12 h |
| > 0 °C to +5 °C | 13 min | 3 h |
| > +5 °C to +10 °C | 20 min | 3 h |
| > +10 °C to +20 °C | 10 min | 2 h |
| > +20 °C to +30 °C | 6 min | 60 min |
| > +30 °C to +40 °C | 4 min | 30 min |
High temperature significantly shortens the working time of ordinary mortars. With the Low Speed version, however, you are guaranteed a stable, controlled installation process.
Technical parameters
| Parameter | Value |
|---|---|
| Net capacity | 300 ml |
| System | Two-component injection mortar – Low Speed variant |
| Colour | Grey (component A light brown, component B dark grey) |
| State / appearance | Paste |
| Odour | Faint |
| Density (20 °C) | 1.7–1.8 g/ml (A), 1.4–1.6 g/ml (B) |
| Kinematic viscosity (40 °C) | 55 555–100 000 mm²/s (A), 50 000–57 142 mm²/s (B) |
| pH | Not applicable (practically insoluble in water) |
| Flash point | > 100 °C |
| VOC (% w/w) | < 3% |
| Transport classification (ADR/IMDG/IATA) | Component A – not classified; Component B – UN 3077, Class 9, Packing Group III |
| CLP signal word | Danger (A), Warning (B) |
| CLP classification (selected H-statements) | H315, H317, H318 (A); H317, H319, H400, H410 (B) |
| Note | Use of products containing diisocyanates requires training in accordance with Regulation (EU) 2020/1149. |
Storage
Keep in the original, tightly closed packaging, in a cool and dry place, away from sunlight. Use in accordance with the technical data sheet and SDS.
Summary
Fischer FIS VS PLUS Low Speed 300 T is a chemical anchor that ensures reliable installation even in extreme conditions. Thanks to the extended working time, it performs where other mortars fail. If you’re looking for a solution that guarantees precision, safety, and durability—regardless of ambient temperature—this product is your best choice.
FAQ – what do contractors ask in summer?
1. Which chemical anchor works best for hot-weather installation?
High temperatures cause most mortars to cure quickly, making precise installation difficult. For such conditions, a chemical anchor with extended working time, such as Fischer FIS VS PLUS Low Speed 300 T, provides up to 4 minutes of working time even above 30 °C.
2. Which anchor has the longest open time so I don’t have to rush?
Generally, polyester mortars cure quickly, but a Low Speed version like Fischer FIS VS PLUS extends the working/gel time, giving the installer more freedom for precise rod placement.
3. Can I use a standard chemical anchor in summer without taking risks?
Yes, but it requires lightning-fast handling—quick application, thorough hole cleaning, and immediate rod setting. For greater comfort and safety, it’s better to choose a Low Speed version that gives more time for correct installation.
4. How long until I can load the fastening after application?
Curing time depends on the base material temperature—for example, at 30 °C it’s about 30 minutes, but at lower temperatures up to 2 hours. Detailed values are provided in the table above.
5. What accessories are needed for application?
You need a standard applicator for 300 ml cartridges and Fischer static mixers. For deeper holes, use extensions.
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Fischer MR Plus static mixer for injection cartridges, screw connection, pack of 10
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