Sika FastFix All Weather Jointing Compound - 15kg - Flint

While it can be applied in 'all weather conditions,' including rain, the full set time is significantly prolonged in colder temperatures (4°C to 15°C taking up to 5 days). Application below 4°C is not recommended as it can severely impact curing and final strength.

No, pre-wetting is not required. The compound can be applied directly onto dry or even damp surfaces. Its all-weather formula handles moisture during application.

Initial set typically occurs within 6-12 hours above 15°C in dry conditions. It's recommended to avoid heavy foot traffic for at least 24 hours to allow the compound to begin curing properly. Allow more time in cooler conditions.

Sika FastFix is suitable for joints from 5mm wide and 20mm deep. Using it outside these parameters may compromise performance and durability.

To store unused compound, ensure it is completely covered with water inside its original tub. This will prevent it from hardening and allow you to reuse it later for other projects.

It creates a natural barrier to weed growth, significantly reducing their occurrence. However, no product can guarantee 100% prevention, especially against particularly aggressive or deeply rooted weeds if the sub-base is not also treated.

Check ambient temperature. Full setting can take up to 5 days in temperatures between 4°C and 15°C. Initial set is faster above 15°C in dry conditions. Ensure adequate ventilation if applied in an enclosed space.

Ensure joints were filled completely and to the recommended depth of 20mm. While it creates a barrier, persistent weeds may find weak points if not applied correctly or if existing deep-rooted weeds were not removed prior to application.

Always brush off excess compound immediately after application. If dried, gently try to scrape off with a plastic scraper or use a stiff brush. For stubborn residue, specialized paving cleaners might be necessary (test in an inconspicuous area first).

This is uncommon due to Active Resin Technology. Ensure joints were filled adequately and not applied too thinly. Extreme ground movement or improper base preparation could also contribute; however, the product is designed to resist these issues.